UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

For the month of November, 2023.

Commission File Number 33-99720

ARAUCO AND CONSTITUTION PULP INC.

(Translation of registrant’s name into English)

El Golf 150 Fourteenth Floor Santiago, Chile

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  ☒            Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.    Yes  ☐    No  ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-                

ARAUCO AND CONSTITUTION PULP INC

TABLE OF CONTENTS

Item	Page
1.  Ratio analysis of the interim consolidated financial statements		1
2.  Interim consolidated statements of financial position		6
3.  Interim consolidated statements of profit or loss		8
4.  Interim consolidated statements of comprehensive income		9
5.  Interim consolidated statements of changes in equity		10
6.  Interim consolidated statements of cash flow		11
7.  Notes to the interim consolidated financial statements		12
Annex: Press Release

1

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

RATIO ANALYSIS OF THE CONSOLIDATED FINANCIAL STATEMENTS

1. ANALYSIS OF FINANCIAL POSITION

a) Statement of financial position

The principal components of assets and liabilities at the end of each period are as follows:

Assets	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$		Variation ThU.S.$
Current assets		3,827,894		3,774,921		52,973
Non-current assets		13,690,456		13,405,187		285,269
Total assets		17,518,350		17,180,108		1.97	%
Liabilities	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$		Variation ThU.S.$
Current liabilities		2,134,387		1,526,284		608,103
Non-current liabilities		7,468,814		7,393,840		74,974
Non–controlling interests		5,706		5,189		517
Equity attributable to parent company		7,909,443		8,254,795		(345,352	)
Total net equity and liabilities		17,518,350		17,180,108		1.97	%

As of September 30, 2023, total assets increased MU.S.$ 338 compared to December 31, 2022, equivalent to a 1.97% variation. This variation was driven mainly by an increase in property, plant and equipment and right of use assets, which were offset by a lower balance of current tax assets.

In turn, total liabilities increased by MU.S.$ 683 principally driven by increases in financial liabilities for bank borrowings and UF bond issuances, which were offset by lower balances of deferred tax liabilities and trade and other current payables.

The main financial and operational indicators related to the statement of financial position as of the dates and for the periods indicated below are as follows:

Liquidity ratios	09-30-2023			12-31-2022
Current liquidity (current assets / current liabilities)		1.79			2.47
Acid ratio ((current assets-inventories, biological assets) / current liabilities)		0.91			1.29
Debt indicators	09-30-2023			12-31-2022
Debt to equity ratio (total liabilities / equity)		1.21			1.08
Short-term debt to total debt (current liabilities / total liabilities)		0.22			0.17
Long-term debt to total debt (non-current liabilities / total liabilities)		0.78			0.83
	09-30-2023			09-30-2022
Financial expenses coverage ratio (earnings before taxes + interest expense / interest expense)		(0.51	)		9.12
Activity ratio	09-30-2023			12-31-2022
Inventory turnover-time (cost of sales / inventories + current biological assets)		2.55			2.59
Inventory turnover-time (excluding biological assets) (Cost of sales /inventory)		3.20			3.23
Inventory permanence-days ((inventories + biological assets) /cost of sales)		141.31			139.26
Inventory permanence-days (excluding biological assets) (inventory / cost of sales)		112.55			111.46

As of September 30, 2023, the short-term debt to total debt ratio represented 22% of total liabilities (17% as of December 31, 2022).

1

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Our financial expenses coverage ratio decreased from 9.12 to (0.51), mainly due to the losses before taxes generated for the nine-months period ended September 30, 2023, compared to the profits before taxes generated in the same period of 2022.

b) Statement of profit or loss

Profit before income tax

We recorded a loss before income tax of approximately MU.S.$ 411 compared to a profit of approximately MU.S.$ 1,104 in the same period of 2022. The variation of MU.S.$ 1,515 is explained by the factors described in the following table:

Item	MU.S.$
Gross profit (loss)		(1,365	)
Distribution and administrative expenses		188
Other income and expenses		(161	)
Others		(177	)
Net change in profit (loss) before income tax		(1,515	)

The main indicators related to the accounts in our statements of profit or loss and the details of revenues and operation costs are as follows:

Revenues	09-30-2023 ThU.S.$		09-30-2022 ThU.S.$
Pulp		2,014,480		2,265,142
Wood		2,428,465		3,242,455
Other		345		455
Total revenues		4,443,290		5,508,052

Sales costs	09-30-2023 ThU.S.$		09-30-2022 ThU.S.$
Wood		766,100		625,283
Forestry work and other services		514,695		463,996
Depreciation and amortization		410,447		344,294
Other operating costs		1,831,584		1,789,036
Total sales costs		3,522,826		3,222,609

Profitability index	09-30-2023			09-30-2022
Profitability on equity		(4.52	)		8.76
Profitability on assets		(2.11	)		4.16
Return on operating assets		(0.54	)		7.94

Profitability ratios	09-30-2023			09-30-2022
Earnings per share (U.S.$) (1)		(2.2772	)		7.3193
Profit after tax (ThU.S.$) (2)		(274,418	)		881,784
Gross profit (loss) (ThU.S.$)		920,464			2,285,443
Finance costs (ThU.S.$)		(272,666	)		(135,901	)

(1) Average earnings per share refer to the profit to net equity to parent company.

(2) Includes non-controlling interest.

EBITDA	09-30-2023 ThU.S.$			09-30-2022 ThU.S.$
Profit (loss)		(274,418	)		881,784
Finance costs		272,666			135,901
Finance income		(84,074	)		(49,807	)
Income tax expense		(136,192	)		222,213
EBIT		(222,018	)		1,190,091
Depreciation and amortization		493,672			390,458
EBITDA		271,654			1,580,549
Cost at fair value of the harvest		362,581			322,168
Gain from changes in fair value of biological assets		(167,174	)		(193,969	)
Gains (losses) on exchange difference on translation		87,307			40,313
Others*		102,798			30,161
Adjusted EBITDA		657,166			1,779,222

* This net amount corresponds mainly to forest fires and reversal of provisions.

2

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

2. MAIN SOURCES OF FINANCING

Arauco’s financing needs are mainly covered through the capital markets, with bond issuances and credits obtained from banks and financial institutions serving as the main sources of financing.

For short-term borrowing, Arauco follows a liquidity policy which indicates the amounts and institutions from which it can borrow according to several conditions defined in the policy.

In the case of long-term debt, corporate bond issuances in the local market and also in the international markets are used as sources of new resources.

Another source of long-term financing corresponds to borrowings from banks and financial institutions around the world.

3. MARKET SITUATION

Turnover for the third quarter of 2023 remained relatively stable when compared to the same period of 2022. There was an increase in sales volume offset by a decrease in price. During the first nine-months of 2023, turnover was 12.9% lower compared to the same period of the 2022, due to lower invoice prices, and slightly offset by an increase in volume. In terms of grades, most of the prices were lower, with the exception of the grades produced at the Argentina mill, which are mostly sold in the Southern Cone.

During the third quarter of 2023, the pulp market started weak, but improved gradually throughout the quarter, despite the higher pulp supply and spot offers seen in several markets. Total global pulp inventories declined as the months progressed, which helped to strengthen demand for pulp.

In China, the market looks better than it did a few months ago; demand for paper and pulp has been increasing. Inventories of some types of paper have decreased, which has caused the operating rates of paper mills to begin to increase. This has caused pulp mills to announce price increases for their products, which have materialized and thus improved their margins. Despite the increase in pulp supply in the market due to new capacities, pulp inventories in Chinese ports have decreased. Long-fiber pulp prices started the quarter slightly lower, but then began to rise. In turn, short-fiber pulp prices rose throughout the entire quarter.

In Europe, demand for paper was quite weak during the quarter with modest signs of recovery towards the end of September. July and August are holiday months in Europe, so several paper mills reduced their operating rates. Despite the above, paper companies continue showing positive margins due to the low cost of raw materials. In relation to pulp supply, at the beginning of the third quarter a significant spot supply existed from other pulp producers, which were being quite aggressive. However, towards the end of the quarter, these volumes began to decrease as many producers began to divert volumes to China due to higher prices in that market. During the quarter, the price of short fiber fluctuated up and down, reaching the same levels that existed in June of 2023.

The textile pulp market improved in comparison to the second quarter of 2023, mainly due to a recovered viscose market. Viscose plants showed low inventories and increased their operating rate throughout the quarter. Therefore, it was possible to materialize textile pulp price increases towards the end of the quarter.

3

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Production during the third quarter of 2023 was affected by the shutdown of the Valdivia plant, which began in April and resumed production only by early August. Additionally, during the third quarter of 2023, it was decided to permanently close the Licancel plant, which ceased production in August.

Wood Products Business

Sawn timber

Sawn timber sales continued to decline during the third quarter of 2023 when compared to the same period of 2022. Generally speaking, markets continue to show the effects of lower economic activity, reflected in diminished volumes and prices. China was affected by a sluggish local economy and reduced demand in construction and furniture, coupled with low prices from Russia and Europe. The rest of Asia and Europe was affected by high inventories, high interest rates, and geopolitical uncertainty. For the upcoming months, demand continues to be limited, but so is supply; this could have an impact on prices.

In Remanufacturing in the U.S., a slight improvement in demand continued during this third quarter of 2023, although the market remains sluggish and volumes and prices remain lower than in 2022 as a result of the effects of high inflation in the region, rate hikes, high inventories in the supply chain and higher supply from Asia, from local sources, and from Latin America. For the next quarter, stable demand and prices in the U.S. and the rest of the markets, in spite of oversupply, is expected.

Plywood

During the third quarter of 2023, sales were lower than in the same quarter of 2022. In general, the decline is a result of the effect of inflation and higher interest rates in the Americas and Oceania, affecting the construction and property renovation sectors. Compounding the above is the scenario in Europe caused by the war, which in turn impacts demand and costs. As a consequence of the above, there is an oversupply in the market, especially in Latin America and Europe. A slight improvement is expected for the end of the year. In the case of North America, demand and prices have stabilized, with retail activity recovering slightly. The last quarter of the year is expected to be similar.

Panels (MDF, PB, Melamine)

During this third quarter of 2023, volumes and prices continued to be affected by the increase in exports from Brazil to the rest of the region, especially in MDF. On the demand side, the downward effect persists due to the high inflation scenario in South America, and to the higher interest rates, devaluation of currencies against the dollar, high inventories and political uncertainty in some countries. For the last quarter of 2023, the region is expected to continue under this oversupply scenario.

4

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

4. ANALYSIS OF CASH FLOW

The main components of cash flow in each period are as follows:

	09-30-2023 ThU.S.$			09-30-2022 ThU.S.$
Positive (negative) Cash flow
Net cash flows from (used in) operating activities		420,905			1,379,730
Cash flows from (used in) financing activities:		664,929			(325,954	)
Obtaining and paying borrowings and bonds		1,012,596			(84,712	)
Payments of lease liabilities		(58,728	)		(48,529	)
Dividends paid		(282,690	)		(192,334	)
Others		(6,249	)		(379	)
Cash flows from (used in) investment activities:		(1,036,730	)		(1,100,361	)
Purchase and sale of property, plant and equipment		(676,570	)		(964,966	)
Purchase and sale of biological assets		(316,972	)		(161,612	)
Purchase and sale of intangible assets		(4,205	)		(3,413	)
Additions (disposals), investments in subsidiaries, joint ventures and associates		(16,228	)		(132	)
Dividends received		1,043			32,964
Others		(23,798	)		(3,202	)
Positive (negative) net cash flow		49,104			(46,585	)

Our cash flow from operating activities decreased to MU.S.$ 421 for the current period (compared to the positive balance of MU.S.$ 946 for the same period in 2022), resulting mainly from a lower revenue from customer collections in the current period.

The cash flow from financing activities showed a positive balance of MU.S.$ 665 for the current period (compared to the negative balance of MU.S.$ 326 for the same period in 2022). This was mainly due to an increase in short-term borrowings, which was partially offset by financial debts payments.

Regarding the cash flow from investment activities, the balance increased to MU.S.$ 1,037 (compared to a negative balance of MU.S.$ 1,100 for the same period of 2022), mainly due to a decrease in payments for purchases of property, plant and equipment, which was partially offset by an increase in payments for purchases related to forest plantations and a decrease in dividends received.

5. MARKET RISK ANALYSIS

In respect of the economic risks resulting from interest rate variations, the Company maintained, as of September 30, 2023, a ratio of fixed rate debt to total consolidated debt of approximately 93.8%, which we believe is consistent with industry standards.

Regarding variations in prices of pulp and forestry products, the Company does not participate in futures trading, which allows it to maintain one of the lowest cost structures in the industry and have these risks bounded.

The Company and most of its subsidiaries maintain their accounting records and prepare their financial statements in U.S. dollars. Most of their revenues (and accordingly accounts receivable) are denominated in U.S. dollars, and most financial liabilities are either denominated in U.S. dollars or are covered by exchange rate swaps. As a result, exposure to exchange rate fluctuations has decreased significantly.

The consolidated financial statements as of September 30, 2023 include a detailed analysis of the risks associated with the business of Arauco (see Note 23).

5

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

INTERIM CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

		09-30-2023		12-31-2022
	Note	ThU.S.$		ThU.S.$
Assets
Current assets
Cash and cash equivalents	5-23		656,544		667,207
Other current financial assets	23		42,405		15,350
Other current non-financial assets	25		252,059		206,059
Trade and other current receivables	23		879,848		873,295
Accounts receivable from related companies	13-23		7,532		7,563
Current inventories	4		1,466,893		1,470,011
Current biological assets	20		420,244		330,435
Current tax assets	6		102,192		203,722
Total current assets other than assets or disposal groups classified as held for sale			3,827,717		3,773,642
Non-current assets or disposal groups classified as held for sale	22		177		1,279
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners			177		1,279
Total current assets			3,827,894		3,774,921
Non-current assets
Other non-current financial assets	23		20,192		63,321
Other non-current non-financial assets	25		107,107		92,514
Non-current receivables	23		98,546		32,674
Investments accounted for using equity method	15-16		396,849		365,671
Intangible assets other than goodwill	19		65,932		73,439
Goodwill	17		55,366		54,800
Property, plant and equipment	7		9,607,595		9,542,335
Right of use assets	8		531,662		306,487
Non-current biological assets	20		2,795,531		2,864,935
Deferred tax assets	6		11,676		9,011
Total non-current assets			13,690,456		13,405,187
Total assets			17,518,350		17,180,108

The accompanying notes are an integral part of these interim consolidated financial statements.

6

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

INTERIM CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (continued)

		09-30-2023			12-31-2022
	Note	ThU.S.$			ThU.S.$
Equity and liabilities
Liabilities
Current liabilities
Other current financial liabilities	23		1,323,120			375,451
Current lease liabilities	8-23		46,084			36,784
Trade and other current payables	23		663,863			812,838
Accounts payable to related companies	13-23		12,443			14,280
Other short-term provisions	18		5,655			9,513
Current tax liabilities	6		22,221			26,869
Current provisions for employee benefits	10		7,622			7,571
Other current non-financial liabilities	25		53,379			242,978
Total current liabilities other than liabilities included in disposal groups classified as held for sale			2,134,387			1,526,284
Total current liabilities			2,134,387			1,526,284
Non-current liabilities
Other non-current financial liabilities	23		5,279,894			5,155,371
Non-current lease liabilities	8-23		443,744			227,440
Non-current payables			19,960			20,116
Non-current accounts payable to related companies	23		6,731			6,731
Other long-term provisions	18		29,701			40,706
Deferred tax liabilities	6		1,538,057			1,785,915
Non-current provisions for employee benefits	10		85,743			87,689
Other non-current non-financial liabilities	25		64,984			69,872
Total non-current liabilities			7,468,814			7,393,840
Total liabilities			9,603,201			8,920,124
Equity
Issued capital	3		803,618			803,618
Retained earnings			8,121,197			8,500,901
Other reserves			(1,015,372	)		(1,049,724	)
Equity attributable to parent company			7,909,443			8,254,795
Non-controlling interests			5,706			5,189
Total equity			1,915,149			8,259,984
Total equity and liabilities			17,518,350			17,180,108

The accompanying notes are an integral part of these interim consolidated financial statements.

7

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

INTERIM CONSOLIDATED STATEMENTS OF PROFIT OR LOSS

			January – September						July – September
			2023			2022			2023			2022
	Note		ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Statements of profit or loss
Revenue		9		4,443,290			5,508,052			1,594,901			1,879,355
Cost of sales		3		(3,522,826	)		(3,222,609	)		(1,293,167	)		(1,123,644	)
Gross profit (loss)				920,464			2,285,443			301,734			755,711
Other income		3		311,688			244,615			76,912			72,799
Distribution costs		3		(517,580	)		(729,807	)		(184,460	)		(240,226	)
Administrative expenses		3		(470,387	)		(445,895	)		(159,294	)		(146,745	)
Other expense by function		3		(393,683	)		(165,467	)		(146,086	)		(78,756	)
Profit (loss) from operating activities				(149,498	)		1,188,889			(111,194	)		362,783
Finance income		3		84,074			49,807			33,115			21,013
Finance costs		3		(272,666	)		(135,901	)		(100,097	)		(42,691	)
Share of profit (loss) of associates and joint ventures accounted for using equity method		3-15		14,787			41,515			(3,191	)		(2,656	)
Gains (losses) on exchange differences on translation				(87,307	)		(40,313	)		(43,707	)		(18,904	)
Profit (loss) before income tax				(410,610	)		1,103,997			(225,074	)		319,545
Income tax (expense) benefit		6		136,192			(222,213	)		52,073			(70,671	)
Net profit (loss)				(274,418	)		881,784			(173,001	)		248,874
Net profit attributable to
Net profit (loss) attributable to parent company				(274,341	)		881,783			(173,026	)		248,906
Net profit (loss) attributable to non-controlling interests				(77	)		1			25			(32	)
Net profit (loss)				(274,418	)		881,784			(173,001	)		248,874
Basic and diluted earnings (loss) per share (in U.S.$ per share)
Basic and diluted earnings (loss) per share from continuing operations				(2.2771735	)		7.3192592			(1.4362061	)		2.0660497
Basic and diluted earnings (loss) per share				(2.2771735	)		7.3192592			(1.4362061	)		2.0660497

The accompanying notes are an integral part of these interim consolidated financial statements.

8

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

			January - September						July - September
	Note		2023 ThU.S.$			2022 ThU.S.$			2023 ThU.S.$			2022 ThU.S.$
Net profit (loss)				(274,418	)		881,784			(173,001	)		248,874
Components of other comprehensive income that will not be reclassified to profit or loss before tax:
Remeasurements of defined benefit plans
Other comprehensive income before tax gains losses on remeasurements of defined benefit plans		10		(2,900	)		(10,150	)		1,371			(5,728	)
Other comprehensive income that will not be reclassified to profit or loss before tax				(2,900	)		(10,150	)		1,371			(5,728	)
Components of other comprehensive income that will be reclassified to profit or loss before tax:
Exchange differences on translation
Gains (losses) on exchange differences on translation, before tax		11		60,477			(6,466	)		(42,420	)		(44,647	)
Other comprehensive income before tax exchange differences on translation				60,477			(6,466	)		(42,420	)		(44,647	)
Cash flow hedges
Gains (losses) on cash flow hedges, before tax		23		(53,404	)		129,441			(23,706	)		(27,366	)
Reclassification adjustments on cash flow hedges before tax		23		209			(5,080	)		—			—
Other comprehensive income before tax cash flow hedges				(53,195	)		124,361			(23,706	)		(27,366	)
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss before tax
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss before tax				(21	)		1,647			634			(705	)
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss before tax				(21	)		1,647			634			(705	)
Other Comprehensive income that will be reclassified to profit or loss before tax				7,261			119,542			(65,492	)		(72,718	)
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss before tax
Income tax relating to remeasurements of defined benefit plans of other comprehensive income				783			2,741			(370	)		1,547
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss before tax				783			2,741			(370	)		1,547
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss before tax
Income tax relating to cash flow hedges of other comprehensive income		6		17,376			(32,683	)		9,584			8,565
Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss				(148	)		(347	)		(126	)		148
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss				17,228			(33,030	)		9,458			8,713
Other comprehensive income (loss)				22,372			79,103			(55,033	)		(68,186	)
Total comprehensive income (loss)				(252,046	)		960,887			(228,034	)		180,688
Comprehensive income (loss) attributable to
Comprehensive income (loss), attributable to owners of parent company				(251,970	)		961,215			(228,060	)		181,028
Comprehensive income (loss), attributable to non-controlling interests				(76	)		(328	)		26			(340	)
Total comprehensive income (loss)				(252,046	)		960,887			(228,034	)		180,688

The accompanying notes are an integral part of these interim consolidated financial statements.

9

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

09-30-2023	Issued capital ThU.S.$		Reserve of exchange differences on translation ThU.S.$			Reserve of cash flow hedges ThU.S.$			Reserve of actuarial losses on defined benefit plans ThU.S.$			Other reserves ThU.S.$			Total other reserves ThU.S.$			Retained earnings ThU.S.$			Equity attributable to owners of parent ThU.S.$			Non- controlling interests ThU.S.$			Total equity ThU.S.$
Opening balance at 01-01-2023		803,618		(1,097,329	)		(10,112	)		(35,374	)		93,091			(1,049,724	)		8,500,901			8,254,795			5,189			8,259,984
Changes in Equity:
Comprehensive income
Net profit		—		—			—			—			—			—			(274,341	)		(274,342	)		(77	)		(274,418	)
Other comprehensive income, net of tax		—		60,476			(35,819	)		(2,117	)		(169	)		22,371			—			22,371			1			22,372
Comprehensive income		—		60,476			(35,819	)		(2,117	)		(169	)		22,371			(274,341	)		(251,970	)		(76	)		(252,046	)
Equity issue		—		—			—			—			—			—			—			—			62			62
Dividends		—		—			—			—			—			—			(92,719	)		(92,719	)		(126	)		(92,845	)
Increase (decrease) through transfers and other changes equity		—		—			—			—			11,981			11,981			(12,644	)		(663	)		657			(6	)
Changes in equity		—		60,476			(35,819	)		(2,117	)		11,812			34,352			(379,704	)		(345,352	)		517			(344,835	)
Closing balance at 09-30-2023		803,618		(1,036,853	)		(45,931	)		(37,491	)		104,903			(1,015,372	)		8,121,197			7,909,443			5,706			7,915,149

09-30-2022	Issued capital ThU.S.$		Reserve of exchange differences on translation ThU.S.$			Reserve of cash flow hedges ThU.S.$			Reserve of actuarial losses on defined benefit plans ThU.S.$			Other reserves ThU.S.$		Total other reserves ThU.S.$			Retained earnings ThU.S.$			Equity attributable to owners of parent ThU.S.$			Non- controlling interests ThU.S.$			Total equity ThU.S.$
Opening balance at 01-01-2022		803,618		(1,155,195	)		(136,859	)		(20,766	)		71,750		(1,241,070	)		8,248,185			7,810,733			7,771			7,818,504
Changes in Equity:
Comprehensive income
Net profit		—		—			—			—			—		—			881,783			881,783			1			881,784
Other comprehensive income, net of tax		—		(6,137	)		91,678			(7,409	)		1,300		79,432			—			79,432			(329	)		79,103
Comprehensive income		—		(6,137	)		91,678			(7,409	)		1,300		79,432			881,783			961,215			(328	)		960,887
Dividends		—		—			—			—			—		—			(435,064	)		(435,064	)		(434	)		(435,498	)
Increase (decrease) through transfers and other changes equity		—		—			—			—			10,199		10,199			(10,199	)		—			—			—
Changes in equity		—		(6,137	)		91,678			(7,409	)		11,499		89,631			436,520			526,151			(762	)		525,389
Closing balance at 09-30-2022		803,618		(1,161,332	)		(45,181	)		(28,175	)		83,249		(1,151,439	)		8,684,705			8,336,884			7,009			8,343,893

The accompanying notes are an integral part of these interim consolidated financial statements.

10

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS

	January - September
	2023			2022
	ThU.S.$			ThU.S.$
STATEMENTS OF CASH FLOWS
Cash flows from (used in) operating activities
Classes of cash receipts from operating activities
Receipts from sales of goods and rendering of services		4,605,791			5,942,983
Receipts from rents and subsequent sales of such assets		10,895			2,745
Other cash receipts from operating activities		483,997			391,953
Classes of cash payments
Payments to suppliers for goods and services		(3,853,774	)		(4,060,052	)
Payments to and on behalf of employees		(555,904	)		(492,155	)
Payments to manufacture or acquire assets held for rental to others and subsequently held for sale		(8,692	)		(12,609	)
Other cash payments from operating activities		(126,024	)		(141,388	)
Interest paid		(203,428	)		(168,122	)
Interest received		94,729			40,443
Income taxes (paid) refunded		(27,365	)		(127,630	)
Other inflows (outflows) of cash, net		680			3,562
Net cash flow from (used in) operating activities		420,905			1,379,730
Cash flows from (used in) investing activities
Cash flow used in the purchase of non-controlling interests		—			(14	)
Other cash receipts from sales of interests in joint ventures		(5,073	)		—
Other cash payments to acquire interests in joint ventures		(11,155	)		(118	)
Loans to related entities		—			(3,304	)
Proceeds from sales of property, plant and equipment		5,833			28,669
Purchase of property, plant and equipment		(682,403	)		(993,635	)
Proceeds from sales of intangible assets		122			311
Purchase of intangible assets		(4,327	)		(3,724	)
Proceeds from other long-term assets		4,156			48,466
Purchase of other long-term assets		(321,128	)		(210,078	)
Dividends received		1,043			32,964
Other inflows (outflows) of cash, net		(23,798	)		102
Cash flows from (used in) investing activities		(1,036,730	)		(1,100,361	)
Cash flows from (used in) financing activities
Total proceeds from borrowings		1,731,702			214,727
Proceeds from long-term borrowings		885,649			48,577
Proceeds from short-term borrowings		846,053			166,150
Repayments of borrowings		(719,106	)		(299,439	)
Payments of lease liabilities		(58,728	)		(48,529	)
Dividends paid		(282690	)		(192,334	)
Other inflows (outflows) of cash, net		(6,249	)		(379	)
Cash flows from (used in) financing activities		664,929			(325,954	)
Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes		49,104			(46,585	)
Effect of exchange rate changes on cash and cash equivalents		(59,767	)		(34,942	)
Net increase (decrease) of cash and cash equivalents		(10,663	)		(81,527	)
Cash and cash equivalents, at the beginning of the period		667,207			1,011,100
Cash and cash equivalents, at the end of the period		656,544			929,573

The accompanying notes are an integral part of these interim consolidated financial statements.

11

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS AS OF SEPTEMBER 30, 2023 AND DECEMBER 31, 2022

NOTE 1. PRESENTATION OF INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Entity Information

Celulosa Arauco y Constitución S.A. and subsidiaries, (hereafter “Arauco” or the “Company”), tax identification number 93.458.000-1, is a closely held corporation, which was registered in the Securities Registry (the “Registry”) of the Chilean Commission for the Financial Market (“CMF”) as No. 042 on June 14, 1982. Additionally, the Company is registered as a non-accelerated filer in the Securities and Exchange Commission (SEC) of the United States of America.

The Company’s head office address is El Golf Avenue 150, 14^th floor, Las Condes, Santiago, Chile.

Arauco is principally engaged in the production and sale of products related to the forestry and timber industries. Its main operations are focused on business areas of pulp and wood products.

As of September 30, 2023, Arauco is controlled by Empresas Copec S.A., tax identification number 90.690.000-9, which owns 99.999916% of Arauco, and is registered in the Securities Registry as No. 0028. Each of the above mentioned companies is subject to the oversight of the CMF.

Moreover, Empresas Copec S.A. is controlled by the public corporation AntarChile S.A., tax identification number 96.556.310-5, which owns 60.8208% of Empresas Copec S.A. Furthermore, the ultimate shareholders of AntarChile S.A. and, consequently, of Empresas Copec S.A., are Mr. Roberto Angelini Rossi, tax identification number 5.625.652-0, and Mrs. Patricia Angelini Rossi, tax identification number 5.765.170-9.

Arauco’s interim consolidated financial statements were prepared on a going concern basis.

Presentation of interim consolidated financial statements

The interim consolidated financial statements presented by Arauco are comprised by the following:

• Interim consolidated statements of financial position as of September 30, 2023, and December 31, 2022.

• Interim consolidated statements of profit or loss for the periods ended September 30, 2023, and September 30, 2022.

• Interim consolidated statements of comprehensive income for the periods ended September 30, 2023, and September 30, 2022.

• Interim consolidated statements of changes in equity for the periods ended September 30, 2023, and September 30, 2022.

• Interim consolidated statements of cash flows for the periods ended September 30, 2023, and September 30, 2022.

• Explanatory disclosures (notes).

12

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Period Covered by the interim consolidated financial statements

As of September 30, 2023 and December 31, 2022 and for the nine-months periods ended September 30, 2023 and 2022.

Date of Approval of the interim consolidated financial statements

These interim consolidated financial statements were approved by the Board of Directors of the Company (the “Board”) at the Extraordinary Meeting No. 699 on November 7, 2023.

Abbreviations used in this report:

IFRS - International Financial Reporting Standards

IASB - International Accounting Standards Board

IAS - International Accounting Standards

IFRIC - International Financial Reporting Standards Interpretations Committee

MU.S.$ - Millions of U.S. dollars

ThU.S.$ - Thousands of U.S. dollars

U.F. – Inflation index-linked units of account

ICMS – Tax movement of inventories and services (Brazil)

ThCLP$ - Thousands of Chilean pesos

ThR$ - Thousands of Brazilian real

Functional and Presentation Currency

Arauco and most of its subsidiaries determined the United States (“U.S.”) dollar as its functional currency since the majority of its revenues from sales of its products are derived from exports denominated in U.S. dollars, while their costs of sales are to a large extent related or indexed to the U.S. dollar.

For the pulp reportable segment, most of the sales are exports denominated in U.S. dollars and costs are mainly related to plantation costs which are settled in U.S. dollars.

For the wood reportable segment, although total sales include a mix of domestic and exports sales, prices of the products are established in U.S. dollars, which is also the case for the cost structure of the related raw materials.

In relation to the cost of sales, although labor and services costs are generally billed and paid in local currency, these costs are not as significant as the costs of raw materials, which are driven mainly by global markets and therefore, influenced mostly by the U.S. dollar.

The currency used to finance operations is mainly the U.S. dollar.

The presentation currency of the interim consolidated financial statements is the U.S. dollar. Figures on these interim consolidated financial statements are presented in thousands of U.S. dollar (ThU.S.$).

13

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Summary of significant accounting policies

a) Basis for preparation of the interim consolidated financial statements

These interim consolidated financial statements have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB) and they represent the explicit and unreserved adoption of IFRS.

These interim consolidated financial statements have been prepared on a historical cost basis, except for biological assets and certain derivative financial instruments which are measured at revalued amounts or fair value at the end of each period as explained in the following significant accounting policies.

b) Critical accounting estimates and judgments

The preparation of these interim consolidated financial statements, in accordance with IFRS, requires management to make estimates and assumptions that affect the carrying amounts reported. These estimates are based on historical experience and various other assumptions that are considered to be reasonable. Actual results may differ from these estimates. Management believes that the accounting policies below are the critical judgments that have the most significant effect on the amounts recognized in the interim consolidated financial statements.

• Biological assets

The recovery of forest plantations is based on discounted cash flow models which means that the fair value of biological assets is calculated using cash flows from continuing operations on a discounted basis, based on our sustainable forest management plans and the estimated growth of forests.

The measurement of the fair value of the biological assets is determined using a discounted cash flow model. Our cash flow projections include significant judgments and assumptions relating to discount rates, estimated growth of the forests and sales margins. This valuation is performed on the basis of each identifiable farm block and for each type of tree. The main considerations used to calculate the valuation of forest plantations and a sensitivity analysis are presented in Note 20.

• Litigation and contingencies

Arauco and its subsidiaries are subject to certain litigation proceedings. Future impact on Arauco’s financial condition derived from such litigations is estimated by management, in collaboration with its legal advisors. Arauco applies judgment when interpreting the reports of its legal advisors who provide updated estimates of the legal contingencies at each reporting period and/or at each time a modification is determined to be necessary. For a description of current litigations see Note 18.

14

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

c) Consolidation

The interim consolidated financial statements include all entities over which Arauco has the power to direct the relevant financial and operating activities. Subsidiaries are consolidated from the date on which control is obtained and up to the date that control ceases.

Specifically, a company controls an investee or subsidiary if, and only if, they have all of the following:

(a) power over the investee, i.e. the investor has existing rights which give it the ability to direct the relevant activities (the activities that significantly affect the investee’s returns);

(b) exposure or rights to variable returns from involvement with the investee; and

(c) the ability to use power over the investee to affect the amount of the investor’s returns.

When Arauco holds less than the majority of the voting rights in a company in which it participates, it nonetheless has the power over said company - when these voting rights are enough - to grant it in practice the ability to unilaterally direct said company’s relevant activities. Arauco takes into account all facts and circumstances in order to assess if the voting rights in a company in which it participates are enough for granting it the power, including:

a) the size of the investor’s holding of voting rights relative to the size and dispersion of holdings of the other vote holders;

b) potential voting rights held by the investor, other vote holders or other parties;

c) rights arising from other contractual arrangements; and

d) any additional facts and circumstances that indicate the investor has, or does not have, the current ability to direct the relevant activities at the time that decisions need to be made, including voting patterns at previous shareholders’ meetings.

The Company will reevaluate whether or not it holds control of a company in which participates if the facts and circumstances indicate that changes have occurred in one or more of the three elements of control mentioned above.

Consolidation of an investee shall begin from the date the investor obtains control of the investee and cease when the investor loses control of the investee. An entity includes the income and expenses of an acquired or sold subsidiary in the interim consolidated financial statements from the date it gains control until the date when the entity ceases to control the subsidiary.

The profit or loss of each component of other comprehensive income is attributed to owners of the parent company and the non-controlling interest, as appropriate. Total comprehensive income is attributed to the owners of the parent company and non-controlling interests even if the results of the non-controlling interest have a deficit balance.

If a subsidiary uses accounting policies other than those adopted in the interim consolidated financial statements for transactions and other events in similar circumstances, appropriate adjustments are made to the interim consolidated financial statements of subsidiaries in order to ensure compliance with Arauco’s accounting policies.

15

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

All intercompany transactions and unrealized gains and losses from subsidiaries have been fully eliminated from these interim consolidated financial statements and non-controlling interest is presented in the consolidated statement of financial position within equity.

The interim consolidated financial statements at the end of this period include the assets, liabilities, income and expenses of the subsidiaries shown in Note 13.

Certain consolidated subsidiaries have Brazilian real, Mexican pesos, Canadian dollars, Chilean pesos and Argentine pesos as their functional currencies. For consolidation purposes, the financial statements of those subsidiaries have been prepared in accordance with IFRS and translated as indicated in Note 1 (e) (ii).

A parent company will present non-controlling interests in the consolidated statement of financial position within equity, separately from the equity of the owners of the parent company.

d) Segments

Arauco has defined its reportable segments according to its business areas, based on the products and services sold to its customers. This definition is consistent with the management, resource allocation and performance assessment made by key personnel responsible for making relevant decisions related to the Company’s operation. The personnel responsible for making such decisions are the Executive Vice-president and the Chief Executive Officer who are the highest authorities for making decisions and are supported by the Vice-presidents of each segment.

Based on the aforementioned process, the Company has established reportable segments according to the following business units:

• Pulp

• Wood products

Refer to Note 24 for detailed financial information by reportable segment.

e) Functional currency

(i) Functional currency

All items in the financial statements of Arauco and each of its subsidiaries, associates and jointly controlled entities are measured using the currency of the primary economic environment in which each entity operates (the functional currency). The interim consolidated financial statements are presented in U.S. dollars, which is Arauco’s functional and presentation currency.

16

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

(ii) Translation to the presentation currency of Arauco

For the purposes of presenting interim consolidated financial statements, assets and liabilities of Arauco’s operations in a functional currency different from Arauco’s are translated into U.S. dollars using exchange rates prevailing at the end of each reporting period. Income and expense items are translated at the average exchange rates for the period, unless exchange rates fluctuate significantly during that period, in which case the exchange rates at the dates of the transactions are used. Exchange rate differences are recognized in other comprehensive income and accumulated in “Other reserves” within equity.

(iii) Foreign currency transactions

Transactions in currencies other than the functional currency are recognized at the exchange rates prevailing at the dates of the transactions. Profit or loss on transactions in currencies other than the functional currency resulting from the settlement of such transactions and from the translation at year-end exchange rates of monetary assets and liabilities denominated in foreign currencies, are recognized in the consolidated statements of profit or loss, except those which are recorded in other comprehensive income and accumulated in equity such as cash flows hedging derivatives.

f) Cash and cash equivalents

Cash and cash equivalents include cash-on-hand, deposits held on demand at financial entities and other short-term highly liquid investments with an original maturity of three months or less and which are subject to an insignificant risk of changes in value.

g) Financial instruments

Financial assets

Initial classification

Arauco classifies its financial assets into the following categories: fair value through profit or loss and amortized cost.

Arauco does not have financial assets at fair value through other comprehensive income.

The classification is based on the business model used to manage the assets and the characteristics of their contractual cash flows.

Management determines the classification of its financial assets at the time of their initial recognition.

17

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

(a) Financial assets at fair value through profit or loss: these instruments are initially measured at fair value. Net income and losses, including any income from interest or dividends, are registered in the profit or loss of the period. Financial assets are classified in the category of financial assets at fair value through profit or loss when they are maintained for negotiation or designated in their initial registration as assets at fair value through profit or loss. A financial asset can be classified in this category if it is acquired mainly for the purposes of being sold in the short-term. Gain or losses of assets held for negotiations are registered in the consolidated statements of profit or loss, and the related interest is registered independently as financial income. Derivatives are classified as acquired for negotiation also unless they are designated as hedging instruments.

(b) Assets measured at amortized cost: they are initially registered at the fair value of the transaction, adding or subtracting the transaction costs that are directly attributable to the issuance of the financial asset or financial liability. The financial asset is maintained within a business model, the objective of which is to maintain financial assets to obtain contractual cash flows and the contractual conditions of the asset give rise, on specified dates, to cash flows that are solely payments of principal and interest (“SPPI”) over the amount of the outstanding principal.

Subsequent measurement

Financial instruments are subsequently measured at fair value through profit or loss or amortized cost.

The classification is based on two criteria: i) the Company’s business model for the management of financial instruments, and ii) whether the contractual cash flows related to the financial instruments represent “Solely Payments of Principal and Interest”.

a) Financial assets at fair value through profit or loss: these instruments are subsequently measured at fair value. Net earnings and losses, including income from interest and dividends, are registered as profits or losses for the period. These instruments are held for negotiation, and they are mainly acquired to be sold in the short-term. Derivatives are also classified as held for negotiation, unless they are registered as hedging instruments. Financial instruments of this type are classified as other current and non-current financial assets. They are subsequently valuated by determining their fair value, registering changes in value in the consolidated statements of profit or loss, in the items of financial income or financial costs.

b) Financial assets measured at amortized cost: These instruments are subsequently measured at amortized cost minus accumulated amortizations, using the effective interest method and adjusted by loss allowance and volume discounts, in the case of financial assets. Financial income and expenses, foreign exchange income and losses, and impairment are registered in results. Any earnings or losses due to initial or subsequent reductions of the value of the asset are registered in the statement of profit or loss of the period. Borrowings and receivables are non-derivative financial instruments with fixed or determinable payments not traded in any active market. They are registered at amortized cost, registering accrued conditions directly in profit or loss.

18

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Arauco measures accumulated losses in a quantity equivalent to expected credit losses during the lifelong commitment. Expected credit losses are based on contractual cash flow differences based on the allowance of each contract and the cash flows that Arauco expects. The difference is then discounted based on an approximation of the asset’s original effective interest rate. The asset’s carrying value is reduced as the allowance is used, and the loss is recognized in sales expenses in the consolidated statements of profit or loss. When an account receivable cannot be collected, it is regularized against the allowance account for receivables. Subsequent recoveries of previously impaired amounts are recognized as a debit in distribution cost.

Derivative financial instruments are explained in Note 1 h).

Financial liabilities

Arauco classifies its financial liabilities as follows: fair value through profit or loss, derivatives designated as effective hedging instruments and amortized costs.

Management determines the classification of its financial liabilities upon initial recognition. Financial liabilities are derecognized when the obligation is cancelled, settled or expired. When an existing financial liability is replaced with another of the same provider under substantially different terms, or where the terms of an existing liability are substantially amended, such exchange or modification is treated as a write-off of the original liability, with a new liability being recognized, and the difference between the respective carrying amounts is recognized in the consolidated statement of profit or loss.

Financial liabilities are initially recognized at fair value, and in the case of borrowings, they include the costs directly attributable to the transaction. The subsequent measurement of the financial liabilities depends on their classification:

Financial liabilities at fair value through profit or loss

Financial liabilities are included in the category of financial liabilities at fair value through profit or loss when they are held for trading or originally designated at fair value through profit or loss. Income and losses from liabilities held for trading are recognized in profit or loss. This category includes non-designated derivatives for hedging accounting.

Financial liabilities at amortized cost

Other financial liabilities are subsequently valued at their amortized cost based on the effective interest rate method. The amortized cost is calculated taking into account any premium or acquisition discount and includes the costs of transactions that are an integral part of the effective interest rate. This category includes commercial accounts payable and other accounts payable, lease liabilities, as well as the borrowings included in other current and non-current financial liabilities.

19

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

h) Derivative financial instruments

(i) Derivative financial instruments - The Company enters into a variety of derivative financial instruments to manage its exposure to interest rate and foreign exchange rate risks, including foreign exchange forward contracts, interest rate swaps, currency swaps and zero cost collar contracts. The Company’s policy is to enter into derivatives contracts only for economic hedging purposes and there are no instruments with speculation objectives.

Derivatives are initially recognized at fair value at the date the derivative contracts are entered into and are subsequently re-measured at fair value at the end of each reporting period. The resulting gain or loss is recognized in profit or loss unless the derivative is designated as a hedging instrument and complies with hedge accounting requirements, in which event the timing of the recognition in profit or loss depends on the nature of the hedge relationship.

(ii) Embedded derivatives

The Company assesses the existence of embedded derivatives in financial instrument contracts. Derivatives embedded in non-derivative host contracts are treated as separate derivatives when they meet the definition of a derivative, their risks and characteristics are not closely related to those of the host contracts and the contracts are not measured at FVTPL as a whole. Arauco has determined that no embedded derivatives currently exist.

(iii) Hedge accounting

The Company designates certain hedging instruments as either fair value hedges or cash flow hedges.

At the inception of the hedge relationship, the entity documents the relationship between the hedging instrument and the hedged item, along with its risk management objectives and its strategy for undertaking various hedge transactions. Furthermore, at the inception of the hedge and on an ongoing basis, Arauco documents whether the hedging instrument is highly effective in offsetting changes in fair values or cash flows of the hedged item attributable to the hedged risk.

• Fair value hedges

Changes in the fair value of derivatives that are designated and qualify as fair value hedges are recognized in profit or loss immediately, together with any changes in the fair value of the hedged asset or liability that are attributable to the hedged risk.

• Cash flow hedges

The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income and accumulated under the heading of cash flow hedging reserve. The gain or loss relating to the ineffective portion is recognized immediately in profit or loss, and is included in the Finance costs line item in the consolidated statement of profit or loss. Amounts previously recognized in other comprehensive income are reclassified to profit or loss in the periods when the hedged item affects profit or loss, in the same line as the recognized hedged item.

20

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Hedge accounting is discontinued when the Group revokes the hedging relationship, when the hedging instrument expires or is sold, terminated, or exercised, or when it no longer qualifies for hedge accounting. Any gain or loss recognized in other comprehensive income and accumulated in equity at that time remains in equity and is recognized when the forecasted transaction is ultimately recognized in profit or loss. When a forecasted transaction is no longer expected to occur, the gain or loss accumulated in equity is recognized immediately in profit or loss.

i) Inventories

Inventories are measured at the lower of cost or net realizable value. Cost is determined using the weighted average cost method.

The cost of finished and in process products includes the cost of raw materials, direct labor, other direct costs and manufacturing overhead expenses.

Initial costs of harvested wood are determined at fair value less cost of sale at the point of harvest.

Biological assets are transferred to inventories when forests are harvested.

Net realizable value is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated costs necessary to make the sale.

When market conditions result in the production costs of a product exceeding its net realizable value, the inventories are written-down to their net realizable value. This write-down also includes obsolescence amounts resulting from slow moving inventories and technical obsolescence.

Spare parts that will be consumed in a period of less than twelve months are presented in inventories and recognized as an expense when they are consumed.

j) Non-current assets held for sale

Arauco classifies certain property, plant and equipment, intangible assets, investments in associates and disposal groups (groups of assets to be sold together with their directly associated liabilities) as non-current assets held for sale which as of the date of the consolidated statements of financial position are the subject of active sale efforts which are estimated to be highly probable.

These assets or disposal groups are measured at the lower of the carrying amount or the fair value less the costs to sell, and are no longer depreciated or amortized from the time they are classified as non-current assets held for sale.

21

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

k) Business combinations

Arauco applies the acquisition method to account for a business combination. This method requires the identification of the acquirer, determination of the acquisition date, recognition and measurement of the identifiable assets acquired, the liabilities assumed and any non-controlling interest in the acquiree; and recognition and measurement of goodwill or a gain from a bargain purchase. Identifiable assets acquired and liabilities assumed and any contingent liabilities in a business combination are initially measured at fair value at the acquisition date, except:

• deferred tax assets or liabilities, and assets or liabilities related to employee benefit arrangements are recognized and measured in accordance with IAS 12 Income taxes and IAS 19 respectively;

• liabilities or equity instruments related to share-based payment arrangements of the acquiree or share-based payment arrangements of the Group entered into to replace share-based payment arrangements of the acquiree are measured in accordance with IFRS 3 at the acquisition date; and

• assets (or disposal groups) that are classified as held for sale in accordance with IFRS 5 Non-current assets held for sale and discontinued operations are measured in accordance with such standard.

Acquisition-related costs are accounted for as expenses when they are incurred, except for costs to issue debt or equity securities which are recognized in accordance with IAS 32 and IFRS 9.

A parent will present non-controlling interests in the consolidated statement of financial position within equity, separately from the equity of the owners of the parent company.

Changes in the ownership interest of a parent in its subsidiary that do not result in a loss of control are treated as equity transactions. Any difference between the amount by which non-controlling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to owners of the parent company. No adjustment is made to the carrying amount of goodwill, neither gains nor losses are recognized in the statement of profit or loss.

Non-controlling interests that are present ownership interests and entitle their holders to a proportionate share of the entity’s net assets in the event of liquidation may initially be measured either at fair value or at the present ownership instruments’ proportionate share of non-controlling interests, in the recognized amounts of the acquirer’s identifiable net assets. The choice is made on a transaction-by-transaction basis.

Arauco measures the fair value of the acquired company in the business combination achieved in each stage (“step acquisition”), recognizing the effects of remeasurement of previously held equity in the acquiree in the consolidated statements of profit or loss.

22

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

If the initial accounting for a business combination is not completed by the end of the reporting period in which the combination occurs, Arauco reports preliminary amounts for the items for which the accounting is incomplete. During the measurement period (no more than one year), these preliminary amounts are retrospectively adjusted, or additional assets or liabilities are recognized to reflect new information about facts and circumstances that existed at the acquisition date, if known, would have affected the amounts recognized at that date.

Business combinations that are under common control transactions are accounted using as a reference the pooling of interest. Under this method, assets and liabilities related to the transaction carry over the previous carrying values. Any difference between assets and liabilities included in the consolidation and the consideration transferred, is accounted in equity.

l) Investments in associates and joint arrangements

Associates are entities over which Arauco exercises significant influence, but not control. Significant influence is the power to participate in the financial and operating policy decisions of the investee but is not control or joint control over those policies.

Joint arrangement is defined as an entity over which there is joint control, which exists only when the decisions about strategic of activities, both financial and operational, require the unanimous consent of the parties sharing control.

Investments in joint arrangements are classified as a joint venture or as a joint operation. A joint operation is a joint arrangement in which the parties that have joint control of the arrangement (i.e. joint operators) have rights to the assets and obligations for the liabilities, relating to the arrangement. A joint venture is a joint arrangement in which the parties that have joint control of the arrangement (i.e., participants in a joint venture) have rights to the net assets of the arrangement.

Investments in associates and joint ventures are accounted for using the equity method and are initially recognized at cost. Their carrying amount is increased or decreased to recognize the portion corresponding to the statement of profit or loss or to the statement of comprehensive income. Dividends received are recognized by deducting the amount received from the carrying amount of the investment. Arauco’s investment in associates includes goodwill (both net of any accumulated impairment loss).

The investments in joint operations are recognized through consolidation of assets, liabilities and results of operations in relation to Arauco’s ownership percentage.

If the acquisition cost is lower than the fair value of the net assets of the associate acquired, the difference is recognized directly in statement of profit or loss in line other gains (losses).

Investments in associates and joint ventures are presented in the consolidated statement of financial position in the line item “Investments accounted for using equity method”.

23

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

If Arauco’s share of losses of an associate or joint venture equals or exceeds its interest in the associate or joint venture, Arauco discontinues recognizing its share of further losses. After Arauco’s carrying value in the investee is reduced to zero, additional losses are provided for, and a liability is recognized, only to the extent that Arauco has incurred legal or constructive obligations or made payments on behalf of the associate or joint venture. If the associate or joint venture subsequently reports profits, Arauco resumes recognizing its share of those profits only after its share of the profits equals the share of losses not recognized.

m) Intangible assets other than goodwill

After initial recognition, intangible assets with finite useful lives are carried at cost less any accumulated amortization and impairment losses.

Amortization of an intangible asset with a finite useful life is allocated over the asset’s useful life. Amortization begins when the asset is available for use, i.e., when it is in the location and condition necessary for it to be capable of operating in the manner intended by management.

(i) Computer software

Computer software licenses are capitalized in terms of the costs incurred to acquire and make them compatible with existing software. These costs are amortized over the estimated useful lives of the software.

(ii) Water rights, easements and other rights

This item includes water rights, easements and other acquired rights recognized at historical cost which have indefinite useful lives as there is no foreseeable limit to the period over which these assets are expected to generate future cash flows. These rights are not amortized, but are tested for impairment at least annually, or when there is any indication that the assets might be impaired.

(iii) Customers and trade relations with customers

Correspond to the valuation over the time of the established relationship with customers, from the sale of products and services through its sales team. These relations will materialize in sales orders, which generate revenue and cost of sales. The useful life has been determined to be 15 years.

n) Goodwill

Goodwill is measured as the excess of the sum of the consideration transferred, the amount of any non-controlling interest in the acquired company, and the fair value of the acquirer’s previously held equity interest in the acquired company (if any) over the net of the acquisition-date amounts of the identifiable assets acquired and the liabilities assumed. If the total of consideration transferred, non-controlling interest recognized and previously held interest measured is less than the fair value of the net assets of the subsidiary acquired in the case of a bargain purchase, the difference is recognized directly in the statements of profit or loss.

Goodwill is not amortized but tested for impairment on annual basis.

24

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

After initial recognition, goodwill is measured at cost less any accumulated impairment losses. For purposes of impairment testing, goodwill in a business combination is allocated as of the acquisition date to the cash generating unit or a group of cash generating units expected to benefit from the synergies of the combination irrespective of whether other assets or liabilities of the acquired company are allocated to those units or group of units.

The goodwill generated on acquisitions of foreign companies, is expressed in the functional currency of such foreign company.

Goodwill recognized in subsidiaries Arauco Canada Ltd. and Arauco do Brasil S.A., generated on subsidiaries acquisitions whose functional currency is different from the functional currency of the parent company and presentation of these interim consolidated financial statements, are translated into U.S. dollars at the closing exchange rate.

o) Property, plant and equipment

Property, plant and equipment are measured at cost less accumulated depreciation and accumulated impairment. The cost includes expenditures that are directly attributable to the acquisition of the assets.

Subsequent costs, such as improvements and replacement of components, are included in the asset’s carrying amount or recognized as a separate asset, as appropriate, only when it is probable that future economic benefits associated with the item will flow to Arauco and the cost of the item can be measured reliably. The carrying amount of the replaced part is derecognized from property, plant and equipment. All other repairs and maintenance costs are expensed in the period in which they are incurred.

Arauco capitalizes borrowing costs that are directly attributable to the acquisition, construction or production of qualifying assets as part of the cost of those assets, until the assets are ready for their intended use (See Note 12).

Depreciation is calculated by components using the straight-line method.

The useful lives of the items of property, plant and equipment is estimated according to the expected use of the assets. The residual values and useful lives of assets are reviewed and adjusted, if appropriate, annually.

p) Leases

Arauco applies IFRS 16 for recognizing leases in a manner consistent with contracts with similar features and akin circumstances.

At the beginning of a contract, Arauco assesses whether the contract is, or if it contains, a lease. A contract is, or contains, a lease if it transfers the right to control the use of a given asset for a certain period of time, in exchange for consideration.

As of the initial date for recording a lease, Arauco, as lessee, recognizes an asset by the right of use at cost.

25

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The cost of the asset for right of use comprises:

• The amount of the initial measurement of the lease liability. This measurement is at present value of the payments for leases that have not been disbursed as of that date. Payments for leases are discounted using the incremental interest rate for financial borrowings;

• Payments for leases performed prior to or as of the initiation date, minus the lease incentives that have been received;

• The initial direct costs incurred by the lessee; and

• An estimation of the costs to be incurred by the lessee when dismantling and eliminating the underlying asset, restoring the location where the same is located, or restoring the underlying asset to the condition required under the terms and conditions of the lease, unless such costs are incurred in order to produce inventories. The lessee assumes obligations stemming from such costs either at the commencement date, or as a result of having used the underlying asset during a specific period.

After the initial recognition date, Arauco, as lessee, recognizes its asset for right of use by applying the cost model, minus the accumulated depreciation and impairment losses, and adjusted for remeasurement of the liability for lease.

At the beginning, Arauco in the capacity of lessee, recognizes the lease liability at present value of the lease payments that have not been disbursed as of that date. Lease payments are discounted using the incremental interest rate for financial borrowings.

After the initial recognition date, Arauco, as lessee, recognizes a liability for leases by increasing the book value, so as to reflect the interest over the liability for lease, reducing the amount in order to reflect the payments for leases that have been performed and once again recognizing the book value, so as to reflect the remeasurement and also to reflect the essential fixed payments for leases that have been revised.

Arauco presents the assets by right of use in the consolidated statement of financial position and are further disclosed in Note 8. Likewise, lease liabilities are presented in the consolidated statement of financial position and further disclosed in Note 23.

IFRS 16 maintains substantially the accounting requirements of the lessor from IAS 17. Therefore, Arauco has continued to classify its leases as operational or financial, as the case may be.

Income from operating leases in which Arauco is the lessor are recognized on a straight-line basis during the term of the lease. Initial direct costs are added to the book value of the underlying asset and are recognized as expenses during the term of the lease on the same basis as the lease income. Leased assets are included within the statement of financial position, in property, plant and equipment. Arauco did not make adjustments with respect to assets that maintains as a lessor, as a result of IFRS 16 adoption.

When assets are leased under a financial lease, the present value of lease payments are recognized as financial accounts receivable. The difference between the gross receivable and the present value of such amount, is recognized as financial return on capital.

26

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Arauco evaluates the economic nature of the contracts that grant the right to use certain assets, for the purposes of determining the existence of implied leases. In these cases, the Company separates, at the beginning of the contract and based on its relative reasonable values, payments and considerations associated with the lease, from the rest of the elements incorporated into the contract.

q) Biological assets

IAS 41 requires that biological assets, such as standing trees, are measured at fair value less cost to sell in the statement of financial position. Forestry plantations are accounted for at fair value less costs to sell, based on the presumption that fair values of these assets can be measured reliably.

The measurement of the fair value of the biological assets is determined using a discounted cash flow model. Our cash flow projections include significant judgments and assumptions relating to discount rates, estimated growth of the forests and sales margins. This valuation is performed on the basis of each identifiable farm block and for each type of tree.

The measurement of new forestry plantations made during the current year is made at cost, which corresponds to the fair value at that date. After twelve months, the valuation methodology used is that explained in the preceding paragraph.

Biological assets shown as current assets correspond to those forestry plantations that will be harvested in the short-term.

Biological growth and changes in fair value of forestry plantations are recognized in the line item “Other income” in the consolidated statements of profit or loss.

r) Income taxes

The tax liabilities are recognized in the consolidated financial statements based on the determination of taxable income for the year and calculated using the tax rates in force in the countries where Arauco operates.

Deferred income tax is recognized using liability method, on the temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated annual accounts. Deferred income tax is determined using tax rates contained in laws adopted as of the date of the financial statements and that are expected to be applicable when the related deferred tax asset is realized, or the deferred income tax liability is settled.

Deferred taxes are recognized in accordance with the standards established in IAS 12 - Income Tax.

The goodwill arising on business combinations does not give rise to deferred tax.

The deferred tax assets and tax credits are generally recognized for all deductible temporary differences to the extent that it is probable that future taxable profit will be available against which those deductible temporary differences can be utilized.

27

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

s) Provisions

Provisions are recognized when the Company has a present obligation, legal or constructive, as a result of past events, under which, it is probable that an outflow of resources will be required to settle the obligation; and when a reliable estimate can be made of the amount of the obligation. The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period.

t) Revenue recognition

Revenues are valued at fair value of the consideration received or to be received, derived from them. Arauco analyses and takes under consideration all relevant facts and circumstances to apply the five-step model established under IFRS 15 to customer contracts: (i) identify the contract, (ii) identify the performance obligations, (iii) determine the transaction price, (iv) allocate the transaction price, and (v) recognize revenue. Additionally, Arauco evaluates the incremental costs of obtaining a contract and the costs incurred to comply with a contract. Arauco recognizes revenues when the steps established in IFRS have been satisfactorily complied with.

Accounts receivable are recognized when control over goods or services has been transferred to the customer, because at this point of the time collection is unconditional and the passage of time is only needed to receive payment.

(i) Revenue recognition from the sale of goods

Revenue from the sale of goods is recognized when Arauco has transferred to the buyer the significant risks and rewards of ownership of the committed goods, when the amount of revenue can be reliably measured, when Arauco does not retain any managerial involvement over the goods sold and when it is probable that the economic benefits associated with the transaction will flow to Arauco and the costs incurred in respect of the transaction can be measured reliably. Revenue from the sale of goods are recognized when there is no obligation unsatisfied that could affect the customer’s acceptance of the product. The delivery is effective when the products are sent to the specific location, the risks of obsolescence and loss have been transferred to the customer and when Arauco has objective evidence that all acceptance criteria have been satisfied.

Sales are recognized in terms of the price agreed to in the sales contract, less any volume discounts and estimated product returns at the date of the sale. There is no significant financing component given that receivables from sales are collected within a short period, which is in line with market practices.

The structure for recognizing revenue from export sales is based on the 2010 Incoterms, which are the official rules for the interpretation of commercial terms issued by the International Chamber of Commerce.

The main Incoterms used by Arauco are the following:

“CFR (Cost and freight)”, where the company bears all costs including main transportation, until the products arrives at its port of destination. The risk is transferred to the purchaser once the products have been loaded onto the vessel, in the country of origin.

28

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

“CIF (Cost Insurance & Freight)”, where the Company organizes and pays for external freight services and some other expenses. Arauco is no longer responsible for the products once they have been delivered to the ocean carrier company.

(ii) Revenue recognition from rendering of services

Revenue from the rendering of services is recognized as long as the performance obligation have been satisfied.

Revenue is recognized considering the stage of completion of the transaction at the date of the reporting period, when Arauco has the enforceable right of payment from the rendering of the services.

There is no significant financing component, given that sales are made with a reduced average collection period, which is in line with market practice.

Arauco mainly provides power supply services which are transacted principally in the spot market of the Sistema Eléctrico Nacional (SEN) (“National Electrical System”). According to current regulations, the prices on that market called “Marginal Costs” are calculated by the Coordinador Eléctrico Nacional (CEN) (“National Electrical Coordinator”) and are generally recognized in the period in which the services are rendered.

Electrical power is generated as a by-product of the pulp and wood process and is a complementary business to it, which is initially supplied to the group’s subsidiaries and any surplus is sold to the SEN.

Arauco provides other non-core services such as port services and pest control whose revenues are derived from fixed price service contracts are recognized considering the stage of completion of the services rendered at the date of reporting, generally during the period of the service contract on a straight-line basis over the term of the contract.

Revenues from reportable segments mentioned in Note 24 are measured in accordance with the policies indicated in the preceding paragraphs.

Revenues from inter-segment sales (which are made at market prices) are eliminated in the consolidated financial statements.

u) Minimum dividend

Article No. 79 of the Chilean Corporations Law states that, unless otherwise unanimously agreed by the shareholders, corporations must distribute annually at least 30% of net income for the current year as cash dividend to shareholders determined in proportion to their shares or in the proportion established in the by-laws for preferred shares, if any, except where necessary to absorb accumulated losses from prior years.

29

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The current policy is that an amount equivalent to the 40% of the distributable net income for each fiscal year will be distributed as dividends. Nevertheless, the Board of Directors may decide to distribute and pay dividends to the shareholders, to the extent that it expects the year to finalize with positive results and that the Company’s liquidity allows such distribution and payment.

v) Earning per share

Basic earnings per share are calculated by dividing the net profit for the period attributable to the parent company by the weighted average number of ordinary shares outstanding during the period, excluding the average number of shares in the Company held by a subsidiary, if such circumstance exists. Arauco has not performed any type of transaction with a potential dilutive effect that would cause diluted earnings per share to be different from basic earnings per share.

w) Impairment

Non-financial assets

The recoverable amount of property, plant and equipment and other long-term assets with finite useful lives are measured whenever there are any circumstances indicating that the assets have to recognize an impairment loss. Among the circumstances to consider as evidence of impairment are significant declines in the assets’ market value, significant adverse changes in the technological environment, obsolescence or physical damages of assets and changes in the manner in which the asset is used or expected to be used). Arauco evaluates at the end of each reporting period whether there is any evidence of the indications above mentioned.

A previously recognized impairment loss is reversed if there has been a change in the estimates used to determine the recoverable amount however a reversal of an impairment loss shall not exceed the carrying amount that would have been determined (net of amortization or depreciation) had no impairment loss been recognized for the asset in prior years.

For the purposes of assessing impairment losses, assets are grouped at the lowest level for which there is identifiable cash flows separately for each cash-generating unit. Non-financial assets, other than goodwill, which had recognized an impairment loss, are reviewed at the end of each reporting period whether there are any circumstances indicating that an impairment loss previously recognized may no longer exists or has decreased.

“Cash-generating units” are the smallest identifiable groups of those cash inflows that are largely independent of the cash inflow from other assets or groups of assets.

Goodwill

Goodwill and intangible assets with indefinite useful life are tested annually for impairment or whenever circumstances indicate it. The recoverable amount of an intangible asset is the higher of its fair value less costs to sell and its value in use. An impairment loss is recognized whenever the carrying amount exceeds the recoverable amount.

30

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

A cash-generating unit, for which goodwill has been allocated, is tested for impairment annually or more frequently when there are circumstances indicating that the unit may be impaired. If the recoverable amount of the cash-generating unit is less than its carrying amount, the impairment loss is allocated first to reduce the carrying amount of any goodwill allocated to the unit and then to other assets pro rata based on the carrying amount of each asset in the unit. Any impairment loss of goodwill is recognized directly in the consolidated statement of profit or loss. An impairment loss recognized for goodwill is not reversed in subsequent periods.

Goodwill is allocated to cash-generating units for impairment testing purposes. The allocation is made between cash-generating units or groups of cash generating units expected to benefit from the synergies of the combination.

Financial assets

At the end of each reporting period, an assessment is performed in order to identify whether there is any objective evidence that a financial asset or a group of financial assets may have been impaired.

An allowance for doubtful accounts is established based on a measurement of expected losses using a simplified approach.

The allowance for doubtful accounts is measured as the difference between the carrying amount of receivables and the present value of estimated future cash flows. The carrying amount of the receivable is reduced through the use of the allowance. If the impairment loss decreases in later periods, it is reversed either directly or by adjusting the provision for doubtful accounts, with effect in profit or loss.

x) Employee benefits

Arauco constitutes labor obligations for severance payable in all circumstances for certain of its employees with at least 5 years of work in the Company, based on the terms of the staff’s collective and individual bargaining agreements.

The related provision is an estimate of the years of service to be recognized as a future labor obligation liability, in accordance with contracts between Arauco and its employees and pursuant to actuarial valuation criteria for this type of liability. This post-employment benefit is considered a defined benefit plan.

The main factors considered for calculating the actuarial value of severance obligation for years of service are employee turnover, salary increases and life expectancy of the workers included in this benefit.

Actuarial gains and losses are recognized in other comprehensive income in the year they are incurred.

These obligations are related to post-employee benefits in accordance with current standards.

31

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

y) Employee vacations

Arauco recognizes the expense for employee vacation according to labor legislation in each country on an accrual basis.

This obligation is presented in line item “Trade and other current payables” in the consolidated statements of financial position.

z) Recent accounting pronouncements

a) Standards, interpretations and amendments that are mandatory for the first time for annual periods beginning on January 1, 2023:

Amendments and improvements	Content	Mandatory application for annual periods beginning on or after
IAS 1 and IAS 8	To IAS 1, Practice statement 2 and IAS 8, aim to improve accounting policy disclosures and to help users of the financial statements to distinguish between changes in accounting estimates and changes in accounting policies.	January 1, 2023
IAS 12	Deferred tax related to assets and liabilities arising from a single transaction, require companies to recognize deferred tax on transactions that, on initial recognition give rise to equal amounts of taxable and deduct able temporary differences.	January 1, 2023
IAS 1	Presentation of financial statements Clarifies that liabilities are classified as current or non-current depending on the rights that exist at the end of the reporting period. The classification is not affected by the entity’s expectations or events after the reporting date (for example, the receipt of a waiver or a breach of agreement).	January 1, 2023
IAS 12	International tax reform - pillar two model rules These amendments give companies temporary relief from accounting for deferred taxes arising from the Organization for Economic Co-operation and Development’s (OECD) international tax reform. The amendments also introduce targeted disclosure requirements for affected companies. The deferred tax exemption and disclosure of the fact that the exception has been applied, is effective immediately. The other disclosure requirements are effective annual periods beginning on or after 1 January 2023.	January 1, 2023

The adoption of the standards, amendments and interpretations described in the table above do not have a significant impact on Arauco’s consolidated financial statements during its initial application period.

32

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

b) Standards, interpretations and amendments, the application of which is not yet mandatory, which have not been adopted in advance:

Amendments and improvements	Content	Mandatory application for annual periods beginning on or after
IAS 1	Non-current liabilities with covenants Clarify how conditions with which an entity must comply within twelve months after the reporting period affect the classification of a liability.	January 1, 2024
IFRS 16	Leases on sale and leaseback include requirements for sale and leaseback transactions in IFRS 16 to explain how an entity accounts for a sale and leaseback after the date of the transaction. Sale and leaseback transactions where some or all the lease payments are variable lease payments that do not depend on an index or rate are most likely to be impacted.	January 1, 2024
IAS 7 and IFRS 7	Statements of cash flows and financial instruments Require disclosures to enhance the transparency of supplier finance arrangements and their effects on a company’s liabilities, cash flows and exposure to liquidity risk.	January 1, 2024
IAS 21	Lack of Exchangeability An entity is impacted by the amendments when it has a transaction or an operation in a foreign currency that is not exchangeable into another currency at a measurement date for a specified purpose.	January 1, 2025

Arauco estimates that the adoption of the standards, amendments and interpretations described in the table above will not have a significant impact on Arauco’s consolidated financial statements during its initial application period.

NOTE 2. ACCOUNTING POLICIES, CHANGES IN ACCOUNTING ESTIMATES

Changes to accounting policies

As of September 30, 2023, there had been no changes in the accounting policies with respect to the 2022 financial year.

Changes to accounting estimates

As of September 30, 2023, there had been no changes in the methodologies for calculating the accounting estimates with respect to the 2022 financial year.

NOTE 3. DISCLOSURE OF OTHER INFORMATION

a) Disclosure of information on issued capital

As of September 30, 2023, the shareholders composition according to the amount of shares owned was as follows:

Shareholders	Shares		%
Empresas Copec S.A.		120,474,249		99.99991616	%
AntarChile S.A.		101		0.00008384	%
		120,474,350		100.00000000	%

33

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

At the date of these interim consolidated financial statements the share capital of Arauco was ThU.S.$ 803,618.

100% of Capital corresponds to ordinary shares.

	09-30-2023	12-31-2022
Description of shares by type of capital in ordinary shares	100% of Capital corresponds to ordinary shares
Number of authorized shares by type of capital in ordinary Shares	120,474,350	120,474,350
Nominal value of shares by type of capital in ordinary shares	U.S.$ 6.6704 per share	U.S.$ 6.6704 per share
Amount of capital in shares by type of ordinary shares that constitute capital	ThU.S.$ 803,618	ThU.S.$ 803,618
	09-30-2023	12-31-2022
Number of shares issued and fully paid by type of capital in ordinary shares	120,474,350	120,474,350

b) Dividends paid

On May 10, 2023, a dividend of ThU.S.$ 279,622 was paid according to the extraordinary dividend policy distribution of 50% of the distributable net profit after discounting the payment made in December 2022, which is detailed in the following paragraph.

In December 2022 a provisional dividend of ThU.S.$ 183,971 was paid with a charge to the profits of the year 2022, which represented 20% of the distributable net profit as of September 30, 2022.

In May 2022 a dividend of ThU.S.$ 192,132 was paid with a charge to the profits of the year 2021. In November 2021 a provisional dividend of ThU.S.$ 271,000 was paid with a charge to the profits of the same year.

The amount of ThU.S.$ 92,719 presented in the interim consolidated statement of changes in equity for the year ended December 31,2022, contains the minimum dividend provision of an additional and extraordinary 10% to be paid for the profits of the parent company of 2022, approved in April 2023. As of September 30, 2023, there was no minimum dividend provision for the 2023 losses.

See Note 26 for details.

As of September 30, 2023, ThU.S.$ 282,690 are shown in the line of dividends paid of the statements of cash flows (ThU.S.$ 192,334 as of September 30, 2022), of which ThU.S.$ 279,622 (ThU.S.$ 192,132 as of September 30, 2022) correspond to the dividends’ payment from the parent company.

Dividends paid detail, ordinary shares
Dividends paid	Definitive dividend
Classes of shares for which there are dividends paid	Ordinary shares without series
Date of dividends paid	05-10-2023
Amount of dividends	ThU.S.$ 279,622
Number of shares on which pay dividends	120,474,350
Dividend per shares	U.S.$ 2.321007

34

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Dividends paid detail, ordinary shares
Dividends paid	Definitive dividend
Classes of shares for which there are dividends paid	Ordinary shares without series
Date of dividends paid	12-14-2022
Amount of dividends	ThU.S.$ 183,971
Number of shares on which pay dividends	120,474,350
Dividend per shares	U.S.$ 1.527060

Dividends paid detail, ordinary shares
Dividends paid	Definitive dividend
Classes of shares for which there are dividends paid	Ordinary shares without series
Date of dividends paid	05-10-2022
Amount of dividends	ThU.S.$ 192,132
Number of shares on which pay dividends	120,474,350
Dividend per shares	U.S.$ 1.594799

c) Disclosure of information on reserves

Other reserves comprise reserves of exchange differences on translation, reserves of cash flow hedges and other reserves. Arauco does not have any restrictions associated with these reserves.    

Reserves of exchange differences on translation

Reserves of exchange differences on translation correspond to exchange differences relating to the translation of the results and net assets of Arauco’s subsidiaries whose functional currency is other than Arauco’s presentation currency.

Reserves of cash flow hedges

The hedging reserve includes the cash flow hedge reserve and the costs of hedging reserve. The cash flow hedge reserve is used to recognize the effective portion of gains or losses on derivatives that are designated and qualify as cash flow hedges.

Reserve of actuarial losses in defined benefit plans

This corresponds to changes in the present value of the obligation for defined benefits resulting from experience adjustments (the effect of the differences between the previous actuarial assumptions and the events that occurred within the context of the plan) and the effects of the changes in the actuarial assumptions.

Other reserves

This mainly corresponds to the share of other comprehensive income of investments in associates and joint ventures.

35

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

d) Other items in the consolidated statements of profit or loss

The table below sets forth other income, other expenses, finance income, finance costs and share of profit (loss) of associates and joint ventures for the nine-months periods ended September 30, 2023 and 2022 are as follows:

	January - September						July - September
	2023			2022			2023			2022
	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Classes of Other Income
Total Other Income		311,688			244,615			76,912			72,799
Gain from changes in fair value of biological assets (Note 20)		167,174			193,969			58,487			63,405
Net income from insurance compensation		80,711			860			6,464			537
Revenue from export promotion		704			865			255			243
Lease income		8,340			2,627			1,751			576
Gain on sales of assets		10,258			34,218			5,123			4,660
Access easement		122			897			—			897
Recovery of tax credits		4,184			—			492			—
Compensations received		6,991			—			574			—
Reversal of impairment loss assets		6,562			1,750			—			—
Reimbursement provisions (legal and others)		11,727			879			701			638
Other operating income		14,915			8,550			3,065			1,843
Classes of Other Expenses by function
Total Other Expenses by function		(393,683	)		(165,467	)		(146,086	)		(78,756	)
Depreciation		(1,094	)		—			(400	)		—
Provision legal expenses		(9,700	)		(7,080	)		(2,997	)		(3,052	)
Impairmert provision for property, plant and equipment, provision for inventory obsolescence, withdrawals and others		(89,573	)		(11,108	)		(84,040	)		(5,018	)
Operating expenses related to staff restructuring or from plants stoppage or closed		(222,489	)		(69,161	)		(41,577	)		(47,716	)
Expenses related to projects		(6,040	)		(15,985	)		(2,462	)		(5,852	)
Loss of asset sales		(9,227	)		(8,998	)		(5,307	)		(4,182	)
Loss and repair of assets		(8,434	)		(10,634	)		(47	)		(81	)
Loss of forest due to fires		(22,337	)		(14,518	)		(2,312	)		(1,822	)
Other Taxes		(16,267	)		(15,502	)		(4,854	)		(6,668	)
Research and development expenses		(2,932	)		(3,976	)		(876	)		(1,064	)
Fines, readjustments and interest		(783	)		(1,494	)		(100	)		(1,377	)
Loss of tax credits		(841	)		(325	)		(106	)		(158	)
Other expenses		(3,966	)		(6,686	)		(1,008	)		(1,766	)
Classes of Finance Income
Total Finance Income		84,074			49,807			33,115			21,013
Finance income by mutual funds - term deposits		72,465			44,908			28,024			18,693
Finance income resulting from derivatives		8			39			8			—
Other finance income		11,601			4,860			5,083			2,320
Classes of Finance Costs
Total Finance Costs		(272,666	)		(135,901	)		(100,097	)		(42,691	)
Interest expense, Bank borrowings		(56,114	)		(13,294	)		(22,741	)		(5,395	)
Interest expense, Bonds		(159,538	)		(77,153	)		(53,704	)		(24,662	)
Interest expense resulting from derivatives		(18,894	)		(14,675	)		(10,114	)		(5,217	)
Interest expense for right-of-use		(13,492	)		(6,884	)		(6,822	)		(1,858	)
Other finance costs		(24,628	)		(23,895	)		(6,716	)		(5,559	)
Share of profit (loss) of associates and joint ventures accounted for using equity method
Total		14,787			41,515			(3,191	)		(2,656	)
Investments in associates		3,384			6,794			1,437			2,017
Investments in joint ventures		11,403			34,721			(4,628	)		(4,673	)

36

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The analysis of expenses by nature contained in these interim consolidated financial statements is presented below:

	January - September				July - September
	2023		2022		2023		2022
Cost of sales (*)	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Timber		766,396		625,283		308,707		255,663
Forestry labor costs and other services		514,695		463,996		192,388		165,921
Depreciation and amortization		389,136		313,220		145,535		97,169
Depreciation for right of use		21,514		31,074		9,214		10,165
Maintenance costs		263,219		228,514		88,179		68,588
Chemical costs		495,359		550,447		171,743		183,892
Sawmill costs		92,592		94,137		34,890		30,500
Other raw materials		221,160		240,775		79,444		88,175
Other indirect costs		172,906		132,350		57,493		39,963
Energy and fuel		207,021		191,795		73,622		68,304
Cost of electricity		51,334		33,445		17,548		12,347
Staff expenses		327,494		317,573		114,404		102,957
Total		3,522,826		3,222,609		1,293,167		1,123,644

(*) Total amount is comprised of the cost of inventory sales for ThU.S.$ 3,430,961 as of September 30, 2023 (ThU.S.$ 3,153,995 as of September 30, 2022) and the cost of rendering services for ThU.S.$ 91,865 as of September 30, 2023 (ThU.S.$ 68,614 as of September 30, 2022).

	January - September					July - September
	2023		2022			2023		2022
Distribution costs	ThU.S.$		ThU.S.$			ThU.S.$		ThU.S.$
Selling costs		30,492		30,603			10,624		9,926
Commissions		11,009		9,965			4,531		2,963
Insurance		5,737		4,632			1,539		1,272
Provision for doubtful accounts		515		(37	)		8		(15	)
Other selling costs		13,231		16,043			4,546		5,706
Shipping and freight costs		487,088		699,204			173,836		230,300
Port services		47,475		52,587			16,445		16,681
Freights		393,446		594,768			141,933		193,410
Depreciation for right of use		831		1,976			280		1,093
Other shipping and freight costs (internment, warehousing, stowage, customs and other costs)		45,336		49,873			15,178		19,116
Total		517,580		729,807			184,460		240,226

	January - September				July - September
	2023		2022		2023		2022
Administrative expenses	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Wages and salaries		189,020		189,711		63,406		64,656
Marketing, advertising, promotion and publications expenses		10,760		12,480		4,325		3,974
Insurances		39,693		19,044		17,319		6,297
Depreciation and amortization		32,073		24,962		11,222		8,117
Depreciation for right of use		5,531		5,129		1,884		1,856
Computer services		29,388		29,475		8,783		7,710
Lease of offices, other property and vehicles		5,902		4,037		2,225		1,536
Donations, contributions, scholarships		7,049		6,597		2,244		2,514
Fees (legal and technical advisors)		27,037		22,756		8,820		8,457
Property taxes, city permits and rights		26,144		21,608		7,902		6,923
Cleaning services, security services and transportation		21,719		21,780		7,009		7,141
Third-party variable services (maneuvers, logistics)		28,842		36,643		8,558		11,333
Basic services (electricity, telephone, water)		5,785		4,724		1,679		1,388
Maintenance and repair		5,143		5,680		1,552		1,941
Seminars, courses, training materials		2,091		2,534		550		227
Travels, clothing and safety equipment, environmental expenses, audits and others		34,210		38,735		11,816		12,675
Total		470,387		445,895		159,294		146,745

37

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 4. INVENTORIES

	09-30-2023		12-31-2022
Components of inventory	ThU.S.$		ThU.S.$
Raw materials		168,496		199,174
Production supplies		205,741		209,396
Work in progress		92,865		70,625
Finished goods		741,127		769,558
Spare parts		258,664		221,258
Total inventories		1,466,893		1,470,011

Inventories recognized as cost of sales as of September 30, 2023 were ThU.S.$ 3,430,961 (ThU.S.$ 3,153,995 as of September 30, 2022).    

In order to have inventories recorded at net realizable value, inventories are subject of evaluations and obsolescence provision recognition as of September 30, 2023, a net decrease of inventories was recognized associated with a higher provision of ThU.S.$ 51,906 (ThU.S.$ 18,321 as of September 30, 2022). As of September 30, 2023, the amount of provision is ThU.S.$ 129,276 (ThU.S.$ 77,370 as of December 31, 2022).

As of September 30, 2023, there were inventory write-offs of ThU.S.$ 1,561 (ThU.S.$ 1,085 as of September 30, 2022) which are presented in the interim consolidated statements of profit or loss within Cost of sales.

The inventory obsolescence provision is calculated based on the sales conditions of products and age of inventory (inventory turnover).

As of the date of these interim consolidated financial statements, no inventories were pledged as security.

38

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 5. CASH AND CASH EQUIVALENTS

Cash and cash equivalents include cash on hand, bank checking account balances, time deposits and mutual funds. These are short-term highly liquid investments that are readily convertible to known amounts of cash and are subject to an insignificant risk of changes in value.

The investment objective of time deposits is to maximize the amounts of cash surpluses in the short-term. These instruments are permitted under Arauco’s Investment Policy which allows investing in fixed income securities. These instruments have a maturity of less than three months from the date of acquisition.

Arauco invests in local and international mutual funds in order to maximize the returns of cash surpluses denominated in Chilean pesos or in foreign currencies such as U.S. dollars or Euros. These instruments are permitted under Arauco’s Investment Policy.

As of the date of these interim consolidated financial statements, there are no amounts of cash and cash equivalents with restrictions on use.

	09-30-2023		12-31-2022
Components of Cash and Cash Equivalents	ThU.S.$		ThU.S.$
Cash on hand		94		64
Balances with Banks		253,776		298,513
Short-term deposits		225,654		258,566
Mutual funds		177,020		110,064
Total		656,544		667,207

The risk classification of the Company’s mutual funds as of September 30, 2023 and December 31, 2022 is shown below.    

	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
AAAfm		86,140		24,933
No classification		90,880		85,131
Total Mutual Funds		177,020		110,064

Changes in financial liabilities

		09-30-2023
		Bank borrowings			Hedging liabilities			Bonds and promissory notes			Other financial liabilities, Total
		ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Opening balance January 1			940,677			76,686			4,513,459			5,530,822
	(+) Borrowings obtained		1,199,708			—			531,994			1,731,702
	(-) Borrowings paid		(694,720	)		209			(24,595	)		(719,106	)
Cash flows	(-) Commissions paid		(473	)		—			(5,776	)		(6,249	)
	(-) Interest paid		(41,726	)		(15,196	)		(132,958	)		(189,880	)
(+) Accrued interest			55,616			15,239			152,970			223,825
(+/-) Inflation adjustment			(5,204	)		—			(60,895	)		(66,099	)
(+/-) Changes in fair value			—			88,540			—			88,540
(+/-) Other movements			7,846			—			1,613			9,459
Closing balance			1,461,724			165,478			4,975,812			6,603,014

39

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

		12-31-2022
		Bank borrowings			Hedging liabilities			Bonds and promissory notes			Other financial liabilities, Total
		ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Opening balance January 1			991,956			296,316			4,426,033			5,714,305
	(+) Borrowings obtained		318,357			—			—			318,357
	(-) Borrowings paid		(347,459	)		(9,578	)		(40,940	)		(397,977	)
Cash flows	(-) Commissions paid		(1,656	)		—			—			(1,656	)
	(-) Interest paid		(18,450	)		(37,141	)		(193,737	)		(249,328	)
(+) Accrued interest			22,679			37,039			194,200			253,918
(+/-) Inflation adjustment			(29,757	)		—			120,091			90,334
(+/-) Changes in fair value			—			(209,936	)		—			(209,936	)
(+/-) Other movements			5,007			(14	)		7,812			12,805
Closing balance			940,677			76,686			4,513,459			5,530,822

		Lease liabilities
		09-30-2023			12-31-2022
		ThU.S.$			ThU.S.$
Opening balance January 1			264,224			163,304
Cash flows	(-) Borrowings paid		(58,728	)		(65,000	)
	(-) Interest paid		(13,548	)		(9,724	)
(+) Accrued interest			13,731			9,753
(+/-) Inflation adjustment			(1,058	)		839
(+) Increase due to new leases liabilities			(281,712	)		167,370
(+/-) Other movements			3,495			(2,318	)
Closing balance			489,828			264,224

40

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 6. INCOME TAXES

The tax rates applicable in the countries in which Arauco operates are 27% in Chile, 35% in Argentina, 30% in Mexico, 34% in Brazil, 25% in Uruguay and 21% in the United States (federal tax rate).

Deferred tax assets

The following table sets forth the deferred tax assets as of the dates indicated:

	09-30-2023			12-31-2022
Deferred tax assets	ThU.S.$			ThU.S.$
Deferred tax assets relating to provisions		3,325			8,910
Deferred tax assets relating to accrued liabilities		8,245			8,986
Deferred tax assets relating to post-employment benefits		25,370			25,904
Deferred tax assets relating to property, plant and equipment		76,942			45,919
Deferred tax assets relating to impairment provision		11,120			13,517
Deferred tax assets relating to financial instruments		81,930			53,347
Deferred tax assets relating to tax loss carryforward		264,003			110,526
Deferred tax assets relating to inventories		29,458			20,942
Deferred tax assets relating to provisions for income		20,403			9,941
Deferred tax assets relating to allowance for doubtful accounts		2,284			2,472
Deferred tax assets relating to intangible revaluation		731			1,466
Deferred tax assets relating to other deductible temporary differences		37,437			25,777
Total deferred tax assets		561,248			327,707
Offsetting presentation		(549,572	)		(318,696	)
Net effect		11,676			9,011

Certain subsidiaries of Arauco mainly in Chile, Brazil and USA, as of the date of these interim consolidated financial statements, present tax losses for which we estimate that, given the projection of future profits, will allow the recovery of the deferred tax assets recorded. The total amount of these tax losses is ThU.S.$ 1,071,092 (ThU.S.$ 443,250 as of December 31, 2022), which are mainly originated by operational and financial losses.

In addition, as of the closing date of these interim consolidated financial statements there are ThU.S.$ 216,790 (ThU.S.$ 125,391 as of December 31, 2022) of non-recoverable tax losses from subsidiaries in USA, Holland and from joint operations in Uruguay (50%). These companies in Uruguay have certain assets for which deferred tax assets have not been recognized, which total ThU.S.$ 40,015. The estimated recovery period exceeds the expiry date of such tax losses.

Deferred tax liabilities

The following table sets forth the deferred tax liabilities as of the dates indicated:

	09-30-2023			12-31-2022
Deferred tax liabilities	ThU.S.$			ThU.S.$
Deferred tax liabilities relating to property, plant and equipment		1,376,268			1,415,173
Deferred tax liabilities relating to financial instruments		46,183			33,749
Deferred tax liabilities relating to biological assets		504,707			527,988
Deferred tax liabilities relating to inventory		60,055			56,531
Deferred tax liabilities relating to prepaid expenses		37,906			37,760
Deferred tax liabilities relating to intangible		10,301			10,173
Deferred tax liabilities relating to other taxable temporary differences		52,209			23,237
Total deferred tax liabilities		2,087,629			2,104,611
Offsetting presentation		(549,572	)		(318,696	)
Net effect		1,538,057			1,785,915

41

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The effect of this period in current and deferred tax liabilities related to financial hedging instruments corresponds to a debit of ThU.S.$ 17,376 as of September 30, 2023 (credit of ThU.S.$ 32,683 as of September 30, 2022), which is presented net in reserves for cash flow hedges in the interim consolidated statement of changes in equity.

Reconciliation of deferred tax assets and liabilities

Deferred tax assets	Opening balance 01-01-2023 ThU.S.$		Deferred tax income (expenses) ThU.S.$			Deferred tax of items charged to equity ThU.S.$			Increase (decrease) net exchange differences ThU.S.$			Closing balance 09-30-2023 ThU.S.$
Deferred tax Assets relating to provisions		8,910		(5,765	)		—			180			3,325
Deferred tax Assets relating to accrued liabilities		8,986		(750	)		—			9			8,245
Deferred tax Assets relating to post-employment benefits		25,904		(1,301	)		783			(16	)		25,370
Deferred tax Assets relating to property, plant and equipment		45,919		31,132			—			(109	)		76,942
Deferred tax Assets relating to impairment provision		13,517		(2,783	)		—			386			11,120
Deferred tax Assets relating to financial instruments		53,347		12,659			15,679			245			81,930
Deferred tax Assets relating to tax loss carryforward		110,526		151,579			—			1,898			264,003
Deferred tax Assets relating to inventories		20,942		8,499			—			17			29,458
Deferred tax Assets relating to provisions for income		9,941		10,503			—			(41	)		20,403
Deferred tax Assets relating to allowance for doubtful accounts		2,472		(190	)		—			2			2,284
Deferred tax Assets relating to intangible revaluation		1,466		(798	)		—			63			731
Deferred tax Assets relating to other deductible temporary differences		25,777		11,352			—			308			37,437
Total deferred tax assets		327,707		214,137			16,462			2,942			561,248
Deferred tax liabilities	Opening balance 01-01-2023 ThU.S.$		Deferred tax (income) expenses ThU.S.$			Deferred tax of items charged to equity ThU.S.$			Increase (decrease) net exchange differences ThU.S.$			Closing balance 09-30-2023 ThU.S.$
Deferred tax liabilities relating to property, plant and equipment		1,415,173		(41,665	)		—			2,760			1,376,268
Deferred tax liabilities relating to financial instruments		33,749		14,131			(1,697	)		—			46,183
Deferred tax liabilities relating to biological assets		527,988		(26,435	)		—			3,154			504,707
Deferred tax liabilities relating to inventory		56,531		3,522			—			2			60,055
Deferred tax liabilities relating to prepaid expenses		37,760		125			—			21			37,906
Deferred tax liabilities relating to intangible		10,173		(163	)		—			291			10,301
Deferred tax liabilities relating to other taxable temporary differences		23,237		28,643			—			329			52,209
Total deferred tax liabilities		2,104,611		(21,842	)		(1,697	)		6,557			2,087,629
Deferred tax assets	Opening balance 01-01-2022 ThU.S.$		Deferred tax income (expenses) ThU.S.$			Deferred tax of items charged to equity ThU.S.$			Increase (decrease) net exchange differences ThU.S.$			Closing balance 12-31-2022 ThU.S.$
Deferred tax Assets relating to provisions		5,730		3,051			—			129			8,910
Deferred tax Assets relating to accrued liabilities		8,257		716			—			13			8,986
Deferred tax Assets relating to post-employment benefits		19,738		745			5,403			18			25,904
Deferred tax Assets relating to property, plant and equipment		32,480		13,439			—			—			45,919
Deferred tax Assets relating to impairment provision		8,564		4,664			—			289			13,517
Deferred tax Assets relating to financial instruments		108,910		(8,024	)		(47,883	)		344			53,347
Deferred tax Assets relating to tax loss carryforward		24,972		84,068			—			1,624			110,664
Deferred tax Assets relating to inventories		18,793		2,120			—			29			20,942
Deferred tax Assets relating to provisions for income		19,323		(9,408	)		—			26			9,941
Deferred tax Assets relating to allowance for doubtful accounts		4,625		(2,155	)		—			2			2,472
Deferred tax Assets relating to intangible revaluation		2,301		(1,013	)		—			178			1,466
Deferred tax Assets relating to tax credits		8,996		(8,996	)		—			—			—
Deferred tax Assets relating to other deductible temporary differences		24,328		509			—			802			25,639
Total deferred tax assets		287,017		79,716			(42,480	)		3,454			327,707
Deferred tax liabilities	Opening balance 01-01-2022 ThU.S.$		Deferred tax income (expenses) ThU.S.$			Deferred tax of items charged to equity ThU.S.$			Increase (decrease) net exchange differences ThU.S.$			Closing balance 12-31-2022 ThU.S.$
Deferred tax liabilities relating to property, plant and equipment		1,281,546		130,377			—			3,250			1,415,173
Deferred tax liabilities relating to financial instruments		25,334		5,712			2,704			(1	)		33,749
Deferred tax liabilities relating to biological assets		605,166		(80,917	)		—			3,739			527,988
Deferred tax liabilities relating to inventory		46,336		10,272			—			(77	)		56,531
Deferred tax liabilities relating to prepaid expenses		38,088		(337	)		—			9			37,760
Deferred tax liabilities relating to intangible		12,511		(2,648	)		—			310			10,173
Deferred tax liabilities relating to other taxable temporary differences		18,204		4,520			—			513			23,237
Total deferred tax liabilities		2,027,185		66,979			2,704			7,743			2,104,611

42

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Temporary differences

The following tables summarize the deductible and taxable temporary differences:

	09-30-2023				12-31-2022
	Deductible		Taxable		Deductible		Taxable
Detail of classes of deferred tax temporary differences	difference ThU.S.$		difference ThU.S.$		difference ThU.S.$		difference ThU.S.$
Deferred tax assets		297,245		—		217,181		—
Deferred tax assets - tax loss carryforward		264,003		—		110,526		—
Deferred tax liabilities		—		2,087,629		—		2,104,611
Total		561,248		2,087,629		327,707		2,104,611

	January – September					July - September
	2023		2022			2023		2022
Detail of temporary difference income and loss amounts	ThU.S.$		ThU.S.$			ThU.S.$		ThU.S.$
Deferred tax assets		62,558		18,062			29,413		(1,400	)
Deferred tax assets - tax loss carryforward		151,579		45,736			38,627		17,774
Deferred tax liabilities		21,842		(129,723	)		29,109		(35,082	)
Total		235,979		(65,925	)		97,149		(18,708	)

Income tax expense

Income tax expense consists of the following:

	January - September						July - September
	2023			2022			2023			2022
Income tax composition	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Current income tax expense		(102,351	)		(269,927	)		(43,861	)		(81,509	)
Tax benefit arising from tax credit used to reduce current tax expense		9,151			82,218			257			28,240
Prior period current income tax adjustments		(10,602	)		4,918			(63	)		(49	)
Other current benefit tax (expenses)		4,015			26,503			(1,409	)		1,355
Current tax expense, net		(99,787	)		(156,288	)		(45,076	)		(51,963	)
Deferred tax expense relating to origination and reversal of temporary differences		84,400			(111,661	)		51,141			(36,482	)
Tax benefit arising from tax credits used to reduce deferred tax expense		151,579			45,736			46,008			17,774
Total deferred tax benefit (expense), net		235,979			(65,925	)		97,149			(18,708	)
Total income tax benefit (expense)		136,192			(222,213	)		52,073			(70,671	)

The following table presents the current income tax expense detailed by foreign and domestic (Chile) companies as of September 30, 2023 and 2022:

	January – September						July - September
	2023			2022			2023			2022
	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Foreign current income tax expense		(65,904	)		(90,263	)		(26,620	)		(37,834	)
Domestic current income tax expense		(33,883	)		(66,025	)		(18,456	)		(14,129	)
Total current income tax expense		(99,787	)		(156,288	)		(45,076	)		(51,963	)
Foreign deferred tax benefit (expense)		16,979			12,128			6,137			5,166
Domestic deferred tax benefit (expense)		219,000			(78,053	)		91,012			(23,874	)
Total deferred tax benefit (expense)		235,979			(65,925	)		97,149			(18,708	)
Total income tax benefit (expense)		136,192			(222,213	)		52,073			(70,671	)

43

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Reconciliation of income tax expense from statutory tax rate to the effective tax rate.

The reconciliation of income tax expense is as follows:

	January – September						July - September
	2023			2022			2023			2022
Reconciliation of income tax from statutory rate to effective tax rate	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Statutory domestic (Chile) income tax rate		27.0	%		27.0	%		27.0	%		27.0	%
Tax expense at statutory tax rate		110,865			(298,079	)		60,770			(86,277	)
Tax effect of foreign tax rates		675			(33	)		1,071			3,540
Tax effect of income exempt from taxation		80,317			55,361			7,061			14,521
Tax effect of not deductible expenses		(43,614	)		(13,476	)		(7,398	)		(7,313	)
Tax rate effect of previously unrecognized tax loss		—			81			—			81
Tax effect of a new evaluation of deferred tax assets		(20,447	)		7,508			(19,938	)		(96	)
Tax effect of tax provided in excess in prior periods		(10,602	)		4,918			(63	)		(49	)
Other tax rate effects (*)		18,998			21,507			10,570			4,922
Total adjustments to tax expense at applicable tax rate		25,327			75,866			(8,697	)		15,606
Tax benefit (expense) at effective tax rate		136,192			(222,213	)		52,073			(70,671	)

(*) This line includes mainly the tax effect generated by exchange differences on translation of tax bases.

Current tax assets and liabilities

The current tax assets and liabilities balances are as follow:

	09-30-2023			12-31-2022
Current tax assets	ThU.S.$			ThU.S.$
Monthly Provisional Payments (MPP)		14,778			21,974
Income tax receivable		82,583			181,705
Provision tax income		(18,915	)		(25,341	)
Other tax receivables		23,746			25,384
Total		102,192			203,722
Current tax liabilities	09-30-2023 ThU.S.$			12-31-2022 ThU.S.$
Provision tax income (First category)		55,747			256,164
Monthly Provisional Payments (MPP)		(29,225	)		(231,846	)
Other tax payables		(4,301	)		2,551
Total		22,221			26,869

44

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 7. PROPERTY, PLANT AND EQUIPMENT

	09-30-2023			12-31-2022
	ThU.S.$			ThU.S.$
Property, plant and equipment, net
Construction work in progress		782,239			3,592,689
Land		918,448			893,237
Buildings		3,645,276			2,085,868
Plant and equipment		4,016,439			2,760,925
Information technology equipment		42,343			22,642
Fixtures and fittings		13,222			11,017
Motor vehicles		51,387			45,927
Other property, plant and equipment		138,241			130,030
Total net		9,607,595			9,542,335
Property, plant and equipment, gross
Construction work in progress		782,239			3,592,689
Land		918,448			893,237
Buildings		6,242,493			4,510,660
Plant and equipment		8,793,235			7,220,981
Information technology equipment		134,231			108,645
Fixtures and fittings		54,283			49,861
Motor vehicles		109,173			98,126
Other property, plant and equipment		155,442			147,277
Total gross		17,189,544			16,621,476
Accumulated depreciation and impairment
Buildings		(2,597,217	)		(2,424,792	)
Plant and equipment		(4,776,796	)		(4,460,056	)
Information technology equipment		(91,888	)		(86,003	)
Fixtures and fittings		(41,061	)		(38,844	)
Motor vehicles		(57,786	)		(52,199	)
Other property, plant and equipment		(17,201	)		(17,247	)
Total		(7,581,949	)		(7,079,141	)

Description of property, plant and equipment pledged as security for liabilities

As of September 30, 2023, there are no significant assets pledged as collateral to be disclosed in these interim consolidated financial statements.

Disbursements commitments for the acquisition of property, plant and equipment and disbursements for property, plant and equipment under construction.

	09-30-2023		12-31-2022
	ThU.S.$		ThU.S.$
Amount committed for the acquisition of property, plant and equipment		299,548		363,504

45

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Reconciliation of property, plant and equipment

The following tables set forth the reconciliation of the carrying amount of property, plant and equipment as of September 30, 2023 and December 31, 2022:

	Construction work in progress			Land			Buildings			Plant and equipment			IT equipment			Fixtures and fittings			Motor vehicles			Other property, plant and equipment			Total
Reconciliation of Property, Plant and Equipment	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Opening balance 01-01-2023		3,592,689			893,237			2,085,868			2,760,925			22,642			11,017			45,927			130,030			9,542,335
Changes
Additions		558,554			20,403			5,384			12,143			471			203			4,143			7,816			609,117
Disposals		(18	)		(95	)		(705	)		(5,795	)		(835	)		—			(107	)		—			(7,555	)
Withdrawals		(79	)		(142	)		(1,240	)		(8,994	)		(9	)		(14	)		(17	)		—			(10,495	)
Depreciation		—			—			(158,422	)		(298,979	)		(6,665	)		(2,552	)		(6,429	)		(1,052	)		(474,099	)
Impairment loss recognized in profit or loss		—			—			(19,585	)		(32,112	)		(125	)		(11	)		(4	)		—			(51,837	)
Increase (decrease) through net exchange differences		163			4,832			8,982			27,741			100			21			576			633			43,048
Reclassification of assets held for sale		—			137			—			(1,240	)		—			—			—			—			(1,103	)
Increase (decrease) through transfers from construction in progress		(3,369,070	)		76			1,724,994			1,589,872			26,764			4,558			21,992			814			—
Reclassification from lease to property, plant and equipment		—			—			—			455			—			—			—			—			455
Increase (decrease) through transfers from leasing assets		—			—			—			(27,577	)		—			—			(14,694	)		—			(42,271	)
Total changes		(2,810,450	)		25,211			1,559,408			1,255,514			19,701			2,205			5,460			8,211			65,260
Closing balance 09-30-2023		782,239			918,448			3,645,276			4,016,439			42,343			13,222			51,387			138,241			9,607,595

	Construction work in progress			Land			Buildings			Plant and equipment			IT Equipment			Fixtures and fittings			Motor vehicles			Other property, plant and equipment			Total
Reconciliation of Property, Plant and Equipment	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Opening balance 01-01-2022		2,822,874			888,465			2,165,318			2,915,611			23,516			13,563			13,678			112,641			8,955,666
Changes
Additions		1,076,619			2,003			13,230			26,102			815			808			462			18,115			1,138,154
Disposals		(18	)		(9,747	)		(1,571	)		(2,788	)		(221	)		(273	)		(62	)		(17	)		(14,697	)
Withdrawals		(2,573	)		(391	)		(569	)		(5,319	)		(286	)		(15	)		(80	)		(351	)		(9,584	)
Depreciation		—			—			(132,521	)		(305,572	)		(6,326	)		(3,071	)		(4,477	)		(1,144	)		(453,111	)
Impairment loss recognized in profit or loss		—			—			(25,611	)		(118,026	)		4			(521	)		—			—			(144,154	)
Increase (decrease) through net exchange differences		53			11,769			10,308			36,234			143			82			503			646			59,738
Reclassification of assets held for sale		—			347			68			(437	)		—			—			—			—			(22	)
Increase (decrease) through transfers from construction in progress		(304,266	)		791			57,216			210,682			4,997			444			29,996			140			—
Reclassification from lease to property, plant and equipment		—			—			—			4,438			—			—			5,907			—			10,345
Total changes		769,815			4,772			(79,450	)		(154,686	)		(874	)		(2,546	)		32,249			17,389			586,669
Closing balance 12-31-2022		3,592,689			893,237			2,085,868			2,760,925			22,642			11,017			45,927			130,030			9,542,335

46

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The depreciation expense for the period ended September 30, 2023 and 2022 was as follows:

	January - September				July - September
	2023		2022		2023		2022
Depreciation for the year	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Cost of sales		388,933		313,220		145,332		97,169
Administrative expenses		21,741		13,808		7,811		4,513
Other expenses		44,790		14,097		5,542		10,205
Total		455,464		341,125		158,685		111,887

The useful lives of property, plant and equipment are estimated based on the expected use of the assets. The average useful lives by asset class are as follow:

	Years of Useful Life (Average)
Buildings		58
Plant and equipment		30
Information technology equipment		8
Fixtures and fittings		28
Motor vehicles		7
Other property, plant and equipment		14

See Note 12 for details of capitalized borrowing costs.

47

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 8. LEASES

Arauco acting as lessee

In the application of IFRS 16, Arauco chose not to apply the requirements to recognize a liability and an asset for right of use for leases which term ends within 12 months and for leases in which the underlying asset is of low value ThU.S.$ 5.

Lease liabilities and their maturity are presented in Notes 11 and 23.

Right of use assets

	09-30-2023			12-31-2022
	ThU.S.$			ThU.S.$
Property, plant and equipment by right of use, net
Land		393,100			195,290
Buildings		15,686			16,731
Plant and equipment		62,348			66,709
Information technology equipment		254			157
Motor vehicles		56,545			24,437
Other property, plant and equipment		3,729			3,163
Total net		531,662			306,487
Property, plant and equipment by right of use, gross
Land		445,464			230,231
Buildings		33,905			32,610
Plant and equipment		85,252			86,870
Information technology equipment		620			630
Motor vehicles		226,338			175,261
Other property, plant and equipment		4,559			3,723
Total gross		796,138			529,325
Accumulated depreciation and impairment by right of use
Land		(52,364	)		(34,941	)
Buildings		(18,219	)		(15,879	)
Plant and equipment		(22,904	)		(20,161	)
Information technology equipment		(366	)		(473	)
Motor vehicles		(169,793	)		(150,824	)
Other property, plant and equipment		(830	)		(560	)
Total		(264,476	)		(222,838	)

48

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Reconciliation of property, plant and equipment by right of use

The following tables set forth the reconciliation of the carrying amount of property, plant and equipment by right of use as of September 30, 2023 and December 31, 2022:

	Land			Buildings			Plant and equipment			IT equipment			Motor vehicles			Other property, plant and equipment			Total
Reconciliation of property, plant and equipment by right of use	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Opening balance 01-01-2023		195,290			16,731			66,709			157			24,437			3,163			306,487
Changes
Additions		224,639			3,259			32			186			52,316			1,282			281,714
Withdrawals		(14,191	)		(21	)		(242	)		—			(741	)		—			(15,195	)
Depreciation		(16,886	)		(4,237	)		(4,170	)		(93	)		(20,110	)		(340	)		(45,836	)
Increase (decrease) through net exchange differences		4,248			5			19			4			108			—			4,384
Reclassification from lease to Property, plant and equipment		—			—			—			—			—			(455	)		(455	)
Increase (decrease) through others		—			(51	)		—			—			535			79			563
Total changes		197,810			(1,045	)		(4,361	)		97			32,108			566			225,175
Closing balance 09-30-2023		393,100			15,686			62,348			254			56,545			3,729			531,662

	Land			Buildings			Plant and equipment			IT equipment			Fixtures and fittings			Motor vehicles			Other property, plant and equipment			Total
Reconciliation of property, plant and equipment by right of use	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Opening balance 01-01-2022		72,384			20,682			17,198			224			218			55,093			14,307			180,106
Changes
Additions		135,407			2,531			56,720			148			—			7,827			305			202,938
Withdrawals		—			(1,101	)		(15	)		—			(203	)		(4	)		—			(1,323	)
Depreciation		(12,660	)		(5,400	)		(7,174	)		(229	)		(15	)		(38,596	)		(1,334	)		(65,408	)
Increase (decrease) through net exchange differences		159			22			8			14			—			117			—			320
Reclassification from lease to Property, plant and equipment		—			—			—			—			—			—			(10,346	)		(10,346	)
Increase (decrease) through others		—			(3	)		(28	)		—			—			—			231			200
Total changes		122,906			(3,951	)		49,511			(67	)		(218	)		(30,656	)		(11,144	)		126,381
Closing balance 12-31-2022		195,290			16,731			66,709			157			—			24,437			3,163			306,487

The depreciation expense for the period ending September 30, 2023 and 2022 recognized in property, plant and equipment by right of use is as follows:

	January - September				July - September
	2023		2022		2023		2022
Depreciation for the period	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Cost of sales		21,514		31,074		9,214		10,165
Distribution costs		831		1,976		280		1,093
Administrative expenses		5,531		5,129		1,884		1,856
Total		27,876		38,179		11,378		13,114

Additionally, Arauco has recognized directly in the interim consolidated statement of profit or loss, the following leases excluded from right of use assets:

	January - September				July - September
	2023		2022		2023		2022
	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Expenses from payments of variable leases		162,179		137,288		52,224		44,852
Expenses from low value leases		2,756		3,464		1,202		677
Expenses from short-term leases		26,431		25,849		1,171		(2,596	)
Total		191,366		166,601		54,597		42,933

49

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Arauco acting as lessor

Reconciliation of financial lease minimum payments:

	09-30-2023
	Gross		Interest		Present value
Periods	ThU.S.$		ThU.S.$		ThU.S.$
Less than one year		14,041		—		14,041
Between one and six years		62,459		4,168		58,291
More than six years		—		—		—
Total		76,500		4,168		72,332
	12-31-2022
	Gross		Interest		Present value
Periods	ThU.S.$		ThU.S.$		ThU.S.$
Less than one year		5,067		—		5,067
Between one and six years		25,750		1,882		23,868
More than six years		—		—		—
Total		30,817		1,882		28,935

Financial lease receivables are presented in the interim consolidated statements of financial position in line items “Trade and other current receivable” and “Trade and other non-current receivable” depending on their maturities stated above.

Arauco accounts for its lease contracts as financial leases. These lease contracts are for a term of less than six years at market interest rates and leased assets are forestry machinery and equipment. They also include an early termination option, under general and special conditions stipulated in each contract.

Arauco holds leases as lessee and lessor, described in the previous tables, for which there are no impairment contingent payments or restrictions to report.

NOTE 9. REVENUE

	January - September				July - September
	2023		2022		2023		2022
Classes of revenue	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Revenue from sales of goods		4,341,552		5,428,664		1,552,192		1,855,706
Revenue from rendering of services		101,738		79,388		42,709		23,649
Total		4,443,290		5,508,052		1,594,901		1,879,355

The reportable segments revenues by business area and by geographical area are presented in Note 24.

50

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 10. EMPLOYEE BENEFITS

Classes of benefits and expenses by employee

	January - September				July - September
	2023		2022		2023		2022
	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Employee expenses		561,671		526,918		177,429		177,324
Wages and salaries		539,403		514,583		168,004		172,536
Severance indemnities		22,268		12,335		9,425		4,788

	09-30-2023			12-31-2022
Discount rate		3.02	%		3.02	%
Inflation		3.20	%		3.20	%
Annual rate of wage growth		5.22	%		5.22	%
Mortality rate		RV-2014			RV-2014

Sensitivities to assumptions	ThU.S.$
Discount rate
Increase in 100 bps		(7,353	)
Decrease in 100 bps		8,430
Wage growth rates
Increase in 100 bps		7,254
Decrease in 100 bps		(6,408	)

The following tables set forth the balances and the reconciliation of the present value of severance indemnities obligations as of September 30, 2023 and December 31, 2022:

	09-30-2023		12-31-2022
	ThU.S.$		ThU.S.$
Current		7,622		7,571
Non-current		85,743		87,689
Total		93,365		95,260

Reconciliation of the present value of severance indemnities obligations	09-30-2023 ThU.S.$			12-31-2022 ThU.S.$
Opening balance		95,260			72,560
Current service cost		5,110			6,832
Interest cost		3,480			3,673
(Gains) losses from changes in actuarial assumptions		—			727
Actuarial gains and losses arising from experience		2,900			19,285
Benefits paid		(9,666	)		(7,561	)
Increase (decrease) for foreign currency exchange rates changes		(3,719	)		(256	)
Closing balance		93,365			95,260

The average staffing as of September 30, 2023 was 19,221 people.

51

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 11. BALANCES IN FOREIGN CURRENCY AND FOREIGN CURRENCY EXCHANGE RATE IMPACT IN PROFIT OR LOSS.

	U.S dollar		Euros		Brazilian real		Argentine pesos		Mexican pesos		Other currencies		Chilean pesos		U.F.		Total
September 30, 2023	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Assets
Current assets
Cash and cash equivalents		309,380		9,563		78,920		105,348		19,421		5,277		128,635		—		656,544
Other current financial assets		42,405		—		—		—		—		—		—		—		42,405
Other current non-financial assets		86,643		620		24,230		5,361		6,750		8,502		119,953		—		252,059
Trade and other current receivables		532,761		25,517		74,476		34,980		36,657		1,290		160,267		13,900		879,848
Accounts receivable due from related companies		—		—		—		3,903		—		—		3,629		—		7,532
Current Inventories		1,301,379		—		109,447		—		54,000		—		2,067		—		1,466,893
Current biological assets		299,488		—		120,756		—		—		—		—		—		420,244
Current tax assets		85,845		—		6,037		—		8,472		1,437		401		—		102,192
Non-current assets or disposal groups classified as held for sale		2,657,901		35,700		413,866		149,592		125,300		16,506		414,952		13,900		3,827,717
Non-current assets or disposal groups classified as held for sale		107		—		16		—		54		—		—		—		177
Total current assets		2,658,008		35,700		413,882		149,592		125,354		16,506		414,952		13,900		3,827,894
Non-current assets
Other non-current financial assets		20,192		—		—		—		—		—		—		—		20,192
Other non-current non-financial assets		2,807		—		29,762		17		757		—		73,764		—		107,107
Trade and other non-current receivables		37,640		—		—		—		—		—		2,923		57,983		98,546
Investments accounted for using equity method		100,600		212,632		45,197		—		—		—		38,420		—		396,849
Intangible assets other than goodwill		63,999		—		1,699		—		234		—		—		—		65,932
Goodwill		41,412		—		13,954		—		—		—		—		—		55,366
Property, plant and equipment		8,993,844		—		458,538		—		153,937		—		1,276		—		9,607,595
Right of use assets		190,016		—		340,558		—		1,088		—		—		—		531,662
Non-current biological assets		2,448,684		—		346,847		—		—		—		—		—		2,795,531
Deferred tax assets		7,406		—		3,821		—		449		—		—		—		11,676
Total non-current assets		11,906,600		212,632		1,240,376		17		156,465		—		116,383		57,983		13,690,456
Total assets		14,564,608		248,332		1,654,258		149,609		281,819		16,506		531,335		71,883		17,518,350
	U.S dollar		Euros		Brazilian real		Argentine pesos		Mexican pesos		Other currencies		Chilean pesos		U.F.		Total
September 30, 2023	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Liabilities
Current liabilities
Other current financial liabilities		1,175,548		70,421		11,325		60		—		—		—		65,766		1,323,120
Current lease liabilities		12,401		94		17,705		—		2,159		43		10,828		2,854		46,084
Trade and other current payables		161,610		24,726		86,118		51,280		16,156		12,716		271,161		40,096		663,863
Accounts payable to related companies		657		—		—		—		—		—		11,786		—		12,443
Other short-term provisions		4,044		—		264		—		—		—		51		1,296		5,655
Current tax liabilities		3,789		3,791		4,462		8,809		—		—		1,370		—		22,221
Current provisions for employee benefits		260		—		—		—		—		—		7,362		—		7,622
Other current non-financial liabilities		5,236		59		27,012		4,573		9,452		—		7,047		—		53,379
Total liabilities, current		1,363,545		99,091		146,886		64,722		27,767		12,759		309,605		110,012		2,134,387
Non-current liabilities
Other non-current financial liabilities		3,231,501		359,751		185,222		—		—		—		—		1,503,420		5,279,894
Non-current lease liabilities		122,541		76		280,962		—		2,397		151		25,169		12,448		443,744
Other non-current payables		—		—		2,567		—		—		—		17,393		—		19,960
Non-current accounts payable to related companies		—		—		—		—		—		—		6,731		—		6,731
Other long-term provisions		—		—		3,456		26,245		—		—		—		—		29,701
Deferred tax liabilities		1,438,464		—		92,417		—		7,176		—		—		—		1,538,057
Non-current provisions for employee benefits		—		—		—		—		1,176		—		84,567		—		85,743
Other non-current non-financial liabilities		—		—		64,965		7		—		—		12		—		64,984
Total non-current liabilities		4,792,506		359,827		629,589		26,252		10,749		151		133,872		1,515,868		7,468,814
Total liabilities		6,156,051		458,918		776,475		90,974		38,516		12,910		443,477		1,625,880		9,603,201

52

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

	U.S. dollar		Euros		Brazilian real		Argentine pesos		Mexican pesos		Other currencies		Chilean pesos		U.F.		Total
December 31, 2022	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Assets
Current assets
Cash and cash equivalents		395,254		4,884		103,829		97,859		28,564		26,793		10,024		—		667,207
Other current financial assets		15,350		—		—		—		—		—		—		—		15,350
Other current non-financial assets		18,727		115		17,745		5,333		2,979		7,406		153,754		—		206,059
Trade and other current receivables		614,204		36,425		50,646		33,287		33,089		1,972		97,616		6,056		873,295
Accounts receivable due from related companies		—		—		—		4,713		—		—		2,850		—		7,563
Current Inventories		1,298,649		—		130,707		—		39,353		—		1,302		—		1,470,011
Current biological assets		264,858		—		65,577		—		—		—		—		—		330,435
Current tax assets		174,287		—		8,333		10,296		9,495		1,137		174		—		203,722
Non-current assets or disposal groups classified as held for sale		2,781,329		41,424		376,837		151,488		113,480		37,308		265,720		6,056		3,773,642
Non-current assets or disposal groups classified as held for sale		1,215		—		15		—		49		—		—		—		1,279
Total current assets		2,782,544		41,424		376,852		151,488		113,529		37,308		265,720		6,056		3,774,921
Non-current assets
Other non-current financial assets		63,321		—		—		—		—		—		—		—		63,321
Other non-current non-financial assets		2,980		—		16,022		97		742		8		72,665		—		92,514
Trade and other non-current receivables		5,880		—		—		—		—		—		3,434		23,360		32,674
Investments accounted for using equity method		87,826		203,443		36,489		—		—		—		37,913		—		365,671
Intangible assets other than goodwill		71,141		—		1,940		—		358		—		—		—		73,439
Goodwill		41,408		—		13,392		—		—		—		—		—		54,800
Property, plant and equipment		9,024,490		—		389,522		—		127,120		—		1,203		—		9,542,335
Right of use assets		161,087		—		144,626		—		774		—		—		—		306,487
Non-current biological assets		2,549,796		—		315,139		—		—		—		—		—		2,864,935
Deferred tax assets		5,035		—		3,500		—		476		—		—		—		9,011
Total non-current assets		12,012,964		203,443		920,630		97		129,470		8		115,215		23,360		13,405,187
Total assets		14,795,508		244,867		1,297,482		151,585		242,999		37,316		380,935		29,416		17,180,108
	U.S. dollar		Euros		Brazilian real		Argentine pesos		Mexican pesos		Other currencies		Chilean pesos		U.F.		Total
December 31, 2022	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Liabilities
Current liabilities
Other current financial liabilities		252,091		69,139		2,810		17		—		—		—		51,394		375,451
Current lease liabilities		10,636		91		10,063		—		1,579		23		10,716		3,676		36,784
Trade and other current payables		234,226		23,277		82,988		54,078		16,791		10,476		351,646		39,356		812,838
Accounts payable to related companies		202		—		—		—		—		—		14,078		—		14,280
Other short-term provisions		7,934		—		264		—		—		—		—		1,315		9,513
Current tax liabilities		19,482		5,123		1,512		—		752		—		—		—		26,869
Current provisions for employee benefits		—		—		—		—		—		—		7,571		—		7,571
Other current non-financial liabilities		192,359		51		33,011		5,120		4,828		16		7,593		—		242,978
Total current liabilities		716,930		97,681		130,648		59,215		23,950		10,515		391,604		95,741		1,526,284
Non-current liabilities
Other non-current financial liabilities		3,637,416		386,186		67,080		—		—		—		—		1,064,689		5,155,371
Non-current lease liabilities		120,656		110		91,206		—		1,659		—		549		13,260		227,440
Other non-current payables		—		—		2,462		—		—		—		17,654		—		20,116
Non-current accounts payable to related companies		—		—		—		—		—		—		6,731		—		6,731
Other long-term provisions		1,677		—		12,512		26,517		—		—		—		—		40,706
Deferred tax liabilities		1,681,957		—		97,822		—		6,136		—		—		—		1,785,915
Non-current provisions for employee benefits		—		—		—		—		957		—		86,732		—		87,689
Other non-current non-financial liabilities		—		—		69,849		10		—		—		13		—		69,872
Total non-current liabilities		5,441,706		386,296		340,931		26,527		8,752		—		111,679		1,077,949		7,393,840
Total liabilities		6,158,636		483,977		471,579		85,742		32,702		10,515		503,283		1,173,690		8,920,124

53

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

	09-30-2023						12-31-2022
	Up to 90 days		From 91 days to 1 year		Total		Up to 90 days		From 91 days to 1 year		Total
	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Total current liabilities		1,303,505		830,882		2,134,387		1,241,515		284,769		1,526,284
Other current financial liabilities		538,215		784,905		1,323,120		141,110		234,341		375,451
U.S. dollar		452,189		723,359		1,175,548		138,283		113,808		252,091
Euros		35,914		34,507		70,421		—		69,139		69,139
Brazilian real		6,332		4,993		11,325		2,810		—		2,810
Argentine pesos		60		—		60		17		—		17
U.F.		43,720		22,046		65,766		—		51,394		51,394
Bank borrowings		441,148		252,064		693,212		109,889		167,905		277,794
U.S. dollar		398,902		212,564		611,466		107,079		98,766		205,845
Euros		35,914		34,507		70,421		—		69,139		69,139
Brazilian real		6,332		4,993		11,325		2,810		—		2,810
Other borrowings		97,067		532,841		629,908		31,221		66,436		97,657
U.S. dollar		53,287		510,795		564,082		31,204		15,042		46,246
Argentine pesos		60		—		60		17		—		17
U.F.		43,720		22,046		65,766		—		51,394		51,394
Current lease liabilities		13,142		32,942		46,084		11,339		25,445		36,784
U.S. dollar		3,384		9,017		12,401		2,799		7,837		10,636
Euros		25		69		94		24		67		91
Brazilian real		4,945		12,760		17,705		2,240		7,823		10,063
Mexican pesos		507		1,652		2,159		457		1,122		1,579
Other currencies		11		32		43		2		21		23
Chilean pesos		3,612		7,216		10,828		4,264		6,452		10,716
U.F.		658		2,196		2,854		1,553		2,123		3,676
Trade and other current payables		656,889		6,974		663,863		795,533		17,305		812,838
U.S. dollar		161,610		—		161,610		233,932		294		234,226
Euros		24,491		235		24,726		23,271		6		23,277
Brazilian real		79,379		6,739		86,118		66,586		16,402		82,988
Argentine pesos		51,280		—		51,280		54,078		—		54,078
Mexican pesos		16,156		—		16,156		16,188		603		16,791
Other currencies		12,716		—		12,716		10,476		—		10,476
Chilean pesos		271,161		—		271,161		351,646		—		351,646
U.F.		40,096		—		40,096		39,356		—		39,356
Accounts payable to related companies		12,443		—		12,443		14,280		—		14,280
U.S. dollar		657		—		657		202		—		202
Chilean pesos		11,786		—		11,786		14,078		—		14,078
Other short-term provisions		5,655		—		5,655		8,198		1,315		9,513
U.S. dollar		4,044		—		4,044		7,934		—		7,934
Brazilian real		264		—		264		264		—		264
Chilean pesos		51		—		51		—		—		—
U.F.		1,296		—		1,296		—		1,315		1,315
Current tax liabilities		18,543		3,678		22,221		24,251		2,618		26,869
U.S. dollar		2,478		1,311		3,789		16,864		2,618		19,482
Euros		3,791		—		3,791		5,123		—		5,123
Brazilian real		2,994		1,468		4,462		1,512		—		1,512
Argentine pesos		8,809		—		8,809		—		—		—
Mexican pesos		—		—		—		752		—		752
Chilean pesos		471		899		1,370		—		—		—
Current provisions for employee benefits		7,622		—		7,622		6,706		865		7,571
U.S. dollar		260		—		260		—		—		—
Chilean pesos		7,362		—		7,362		6,706		865		7,571
Other current non-financial liabilities		50,996		2,383		53,379		240,098		2,880		242,978
U.S. dollar		5,236		—		5,236		192,359		—		192,359
Euros		59		—		59		51		—		51
Brazilian real		27,012		—		27,012		33,011		—		33,011
Argentine pesos		4,573		—		4,573		5,120		—		5,120
Mexican pesos		9,452		—		9,452		4,828		—		4,828
Other currencies		—		—		—		16		—		16
Chilean pesos		4,664		2,383		7,047		4,713		2,880		7,593

54

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

	09-30-2023								12-31-2022
	From 13 months to 3 years		From 3 years to 5 years		More than 5 years		Total		From 13 months to 3 years		From 3 years to 5 years		More than 5 years		Total
	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Total non-current liabilities		1,939,157		1,085,739		4,443,918		7,468,814		2,392,390		1,104,841		3,896,609		7,393,840
Other non-current financial liabilities		738,235		946,392		3,595,267		5,279,894		1,028,450		947,217		3,179,704		5,155,371
U.S. dollar		373,243		493,997		2,364,261		3,231,501		782,284		492,898		2,362,234		3,637,416
Euros		128,618		131,646		99,487		359,751		126,793		129,736		129,657		386,186
Brazilian real		150,274		34,948		—		185,222		31,943		35,137		—		67,080
U.F.		86,100		285,801		1,131,519		1,503,420		87,430		289,446		687,813		1,064,689
Bank borrowings		502,431		166,594		99,487		768,512		368,353		164,873		129,657		662,883
U.S. dollar		223,539		—		—		223,539		209,617		—		—		209,617
Euros		128,618		131,646		99,487		359,751		126,793		129,736		129,657		386,186
Brazilian real		150,274		34,948		—		185,222		31,943		35,137		—		67,080
Other borrowings		235,804		779,798		3,495,780		4,511,382		660,097		782,344		3,050,047		4,492,488
U.S. dollar		149,704		493,997		2,364,261		3,007,962		572,667		492,898		2,362,234		3,427,799
U.F.		86,100		285,801		1,131,519		1,503,420		87,430		289,446		687,813		1,064,689
Non-current lease liabilities		88,211		60,624		294,909		443,744		45,904		38,906		142,630		227,440
U.S. dollar		23,950		20,160		78,431		122,541		21,562		17,653		81,441		120,656
Euros		67		9		—		76		109		1		—		110
Brazilian real		38,943		31,592		210,427		280,962		17,335		16,375		57,496		91,206
Mexican pesos		1,874		523		—		2,397		1,646		13		—		1,659
Other currencies		111		40		—		151		—		—		—		—
Chilean pesos		18,253		4,591		2,325		25,169		197		352		—		549
U.F.		5,013		3,709		3,726		12,448		5,055		4,512		3,693		13,260
Non-current payable		19,960		—		—		19,960		2,462		—		17,654		20,116
Brazilian real		2,567		—		—		2,567		2,462		—		—		2,462
Chilean pesos		17,393		—		—		17,393		—		—		17,654		17,654
Non- current accounts payable to related companies		3,283		—		3,448		6,731		3,283		—		3,448		6,731
Chilean pesos		3,283		—		3,448		6,731		3,283		—		3,448		6,731
Other long-term provisions		29,701		—		—		29,701		40,706		—		—		40,706
U.S. dollar		—		—		—		—		1,677		—		—		1,677
Brazilian real		3,456		—		—		3,456		12,512		—		—		12,512
Argentine pesos		26,245		—		—		26,245		26,517		—		—		26,517
Deferred tax liabilities		920,817		77,342		539,898		1,538,057		1,152,877		94,256		538,782		1,785,915
U.S. dollar		908,442		76,432		453,590		1,438,464		1,088,336		92,026		501,595		1,681,957
Brazilian real		5,199		910		86,308		92,417		58,405		2,230		37,187		97,822
Mexican pesos		7,176		—		—		7,176		6,136		—		—		6,136
Non-current provisions for employee benefits		85,717		—		26		85,743		77,746		9,943		—		87,689
Mexican pesos		1,150		—		26		1,176		957		—		—		957
Chilean pesos		84,567		—		—		84,567		76,789		9,943		—		86,732
Other non-current non-financial liabilities		53,233		1,381		10,370		64,984		40,962		14,519		14,391		69,872
Brazilian real		53,214		1,381		10,370		64,965		40,939		14,519		14,391		69,849
Argentine pesos		7		—		—		7		10		—		—		10
Chilean pesos		12		—		—		12		13		—		—		13

55

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The table below sets forth the subsidiaries that have determined a functional currency other than the U.S. dollar as follows:

Subsidiary	Country	Functional currency
Arauco Canada Ltd.	Canada	Canadian dollar
Arauco Celulose do Brasil	Brazil	Brazilian real
Arauco do Brasil S.A.	Brazil	Brazilian real
Arauco Florestal Arapoti S.A.	Brazil	Brazilian real
Arauco Forest Brasil S.A.	Brazil	Brazilian real
Arauco Industria de Mexico, S.A. de C.V.	Mexico	Mexican pesos
Arauco Industria de Paineis S.A.	Brazil	Brazilian real
Arauco Participações Florestais Ltda.	Brazil	Brazilian real
Araucomex Servicios, S.A. de C.V.	Mexico	Mexican pesos
Consorcio Protección Fitosanitaria Forestal S.A.	Chile	Chilean pesos
Empreendimentos Florestais Santa Cruz Ltda.	Brazil	Brazilian real
E2E S.A.	Chile	Chilean pesos
Leasing Forestal S.A.	Argentina	Argentine pesos
Lemu Earth SpA	Chile	Chilean pesos
Mahal Empreendimentos e Participações S.A.	Brazil	Brazilian real
Novo Oeste Gestao de Ativos Florestais S.A.	Brazil	Brazilian real
Tecverde Engenharia S.A.	Brazil	Brazilian real

The table below shows a detail per company of the effect in the period of the reserve of exchange differences on translation:

	January - September						July - September
	2023			2022			2023			2022
	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Arauco Do Brasil S.A.		22,475			38,607			10,694			3,131
Arauco Forest Brasil S.A.		16,057			2,032			4,463			(11,418	)
Arauco Industria de Mexico, S.A de C.V.		18,018			2,092			4,854			(83	)
Arauco Florestal Arapoti S.A.		2,978			1,503			1,051			(2,148	)
E2E S.A.		2,733			—			3,283			—
Arauco Canada Limited.		1,561			(18,452	)		877			(18,091	)
Sonae Arauco S.A.		(2,732	)		(28,451	)		(5,768	)		(12,715	)
Others		(614	)		(3,468	)		(665	)		(3,015	)
Total reserve of exchange differences on translation		60,476			(6,137	)		18,789			(44,339	)

Effect of foreign exchange rates changes

	January - September						July - September
	2023			2022			2023			2022
	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Exchange differences recognized in profit or loss, except for those arising on financial instruments measured at fair value through profit or loss		(22,035	)		(2,813	)		(13,797	)		(4,969	)
Reserve of exchange differences on translation (with non-controlling interests)		60,477			(6,466	)		(42,420	)		(44,647	)

NOTE 12. BORROWING COSTS

Arauco capitalizes interest at effective rate on current investment projects.

During 2023, Arauco only capitalized financial interest related to minor projects.

Until 2022, Arauco capitalized financial interest related to the modernization and expansion of Planta Arauco (MAPA) in Chile.

	January -  September						July - September
	2023			2022			2023			2022
	ThU.S.$			ThU.S.$			ThU.S.$			ThU.S.$
Interest cost capitalized, property, plant and equipment
Capitalization rate of interest cost capitalized, property, plant and equipment		4.77	%		4.34	%		4.76	%		4.34	%
Amount of the interest cost capitalized, property, plant and equipment		190			86,796			51			29,236

56

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 13. RELATED PARTIES

Related party disclosures

Related parties are those entities defined in IAS 24 and under the rules of the Chilean Commission for the Financial Market and the Chilean Corporations Law.

The receivable and payable amounts among related parties at the end of each period correspond to commercial and financing transactions denominated in Chilean pesos, U.S. dollars and Brazilian real, where collection or payment deadlines are shown in the following tables and in general do not bear interest, except for financing transactions.

As of the date of these interim consolidated financial statements, the main transactions with related parties are related to fuel purchases with Copec S.A. and sodium chlorate purchases at EKA Chile S.A.

As of the date of these interim consolidated financial statements, there were neither provisions for accounts of doubtful collection nor any guarantees granted or received related to the balances with related parties.

Name of group’s main shareholders

The ultimate shareholders of Arauco, direct and indirectly, are Mr. Roberto Angelini Rossi and Mrs. Patricia Angelini Rossi.

Name of the intermediate controlling entity that produces interim consolidated financial statements for public use

Empresas Copec S.A.

Key management personnel compensation

Compensation to key management personnel, including directors, managers and deputy managers, consist of a fixed monthly salary, and managers and deputy managers also receive an annual bonus subject to the results of the Company and the fulfillment of goals of the business as well as individual performance.

Pricing strategy terms and conditions corresponding to transactions with related parties

Transactions carried out with related parties are intended to contribute to the corporate interest, are adjusted in price, terms and conditions to those prevailing in the market at the time of approval, and meet the requirements and procedures set forth in the law.

57

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The table below sets forth information about the relationship between the parent company and its subsidiaries

				% Ownership interest						% Ownership interest
			Functional	09-30-2023						12-31-2022
ID N°	Company Name	Country	Currency	Direct		Indirect		Total		Direct		Indirect		Total
77.630.621-5	Agrícola Ranquillón SpA.	Chile	U.S. Dollar		—		98.64114		98.64114		—		98.58669		98.58669
77.630.618-5	Agrícola San Carlos SpA.	Chile	U.S. Dollar		—		99.94839		99.94839		—		99.94839		99.94839
77.630.623-1	Agrícola Santa Emilia SpA.	Chile	U.S. Dollar		—		99.94839		99.94839		—		99.94839		99.94839
77.630.625-8	Agrícola Santa Isabel SpA.	Chile	U.S. Dollar		—		99.94839		99.94839		—		99.94839		99.94839
77.630.626-6	Agrícola Siberia SpA.	Chile	U.S. Dollar		—		98.64114		98.64114		—		98.58669		98.58669
77.630.629-0	Agrícola Trupán SpA.	Chile	U.S. Dollar		—		98.64114		98.64114		—		98.58669		98.58669
—	Arauco Argentina S.A.	Argentina	U.S. Dollar		9.97070		90.00940		99.98010		9.97070		90.00940		99.98010
—	Arauco Australia Pty Ltd.	Australia	U.S. Dollar		—		99.99898		99.99898		—		99.99898		99.99898
96.547.510-9	Arauco Bioenergía S.A.	Chile	U.S. Dollar		98.00000		1.99897		99.99897		98.00000		1.99897		99.99897
—	Arauco Canada Ltd.	Canada	Canadian Dollar		—		99.99911		99.99911		—		99.99911		99.99911
—	Arauco Celulose do Brasil S.A.	Brazil	Brazilian Real		—		99.99907		99.99907		—		99.99907		99.99907
—	Arauco Colombia S.A.	Colombia	U.S. Dollar		1.47783		98.52042		99.99825		1.47783		98.52042		99.99825
—	Arauco do Brasil S.A.	Brazil	Brazilian Real		1.06807		98.93105		99.99912		1.06807		98.93105		99.99912
—	Arauco Europe Cooperatief U.A.	Holland	U.S. Dollar		0.44979		99.54919		99.99898		0.52148		99.47751		99.99899
—	Arauco Florestal Arapoti S.A.	Brazil	Brazilian Real		—		99.99899		99.99899		—		99.99900		99.99900
—	Arauco Forest Brasil S.A.	Brazil	Brazilian Real		8.51901		91.48006		99.99907		8.68654		91.31253		99.99907
—	Arauco Participações Florestais Ltda.	Brazil	Brazilian Real		—		99.99907		99.99907		—		99.99907		99.99907
—	Arauco Industria de México, S.A.de C.V.	Mexico	Mexican pesos		—		99.99910		99.99910		—		99.99910		99.99910
—	Arauco Industria de Paineis S.A.	Brazil	Brazilian Real		—		99.99912		99.99912		—		99.99912		99.99912
—	Arauco Middle East DMCC.	Dubai	U.S. Dollar		—		99.99898		99.99898		—		99.99898		99.99898
—	Arauco North America, Inc.	United States	U.S. Dollar		0.00010		99.99901		99.99911		0.00010		99.99901		99.99911
—	Arauco Perú S.A.	Peru	U.S. Dollar		0.00126		99.99772		99.99898		0.00126		99.99772		99.99898
—	Arauco Pulp Limited.	United Kingdom	U.S. Dollar		—		99.99898		99.99898		—		99.99898		99.99898
—	Arauco Ventures Limited.	United Kingdom	U.S. Dollar		—		99.99898		99.99898		—		99.99898		99.99898
—	Arauco Wood (China) Company Limited.	China	U.S. Dollar		—		99.99898		99.99898		—		99.99898		99.99898
—	Arauco Wood Limited.	United Kingdom	U.S. Dollar		12.63126		87.36785		99.99911		12.63126		87.36785		99.99911
—	Araucomex S.A. de C.V.	Mexico	U.S. Dollar		0.00050		99.99861		99.99911		0.00050		99.99861		99.99911
—	Araucomex Servicios, S.A. de C.V.	Mexico	Mexican pesos		0.33333		99.66578		99.99911		0.33333		99.66578		99.99911
96.657.900-5	Consorcio Protección Fitosanitaria Forestal S.A.	Chile	Chilean Pesos		—		56.83107		56.83107		—		56.82817		56.82817
—	Empreendimentos Florestais Santa Cruz Ltda.	Brazil	Brazilian Real		—		99.99907		99.99907		—		99.99866		99.99866
76.869.577-0	E2E S.A. (1)	Chile	Chilean Pesos		1.00000		98.99861		99.99861		—		—		—
85.805.200-9	Forestal Arauco S.A.	Chile	U.S. Dollar		99.94839		—		99.94839		99.94839		—		99.94839
93.838.000-7	Forestal Cholguán S.A.	Chile	U.S. Dollar		—		98.64114		98.64114		—		98.58669		98.58669
96.563.550-5	Inversiones Arauco Internacional Ltda.	Chile	U.S. Dollar		98.01862		1.98036		99.99898		98.01862		1.98036		99.99898
79.990.550-7	Investigaciones Forestales Bioforest S.A.	Chile	U.S. Dollar		1.00000		98.94891		99.94891		1.00000		98.94891		99.94891
—	Leasing Forestal S.A.	Argentina	Argentine pesos		—		99.98010		99.98010		—		99.98010		99.98010
76.860.724-9	Lemu Earth SpA.	Chile	Chilean Pesos		—		87.07629		87.07629		—		86.61426		86.61426
—	Lemu Global Limited.	United Kingdom	U.S. Dollar		—		93.75643		93.75643		—		99.99898		99.99898
—	Lemu Inc. (2)	United States	U.S. Dollar		—		93.75643		93.75643		—		—		—
—	Maderas Arauco Costa Rica S.A.	Costa Rica	U.S. Dollar		—		99.99898		99.99898		—		99.99898		99.99898
96.510.970-6	Maderas Arauco S.A.	Chile	U.S. Dollar		—		99.99860		99.99860		—		99.99860		99.99860
—	Mahal Empreendimentos e Participações S.A.	Brazil	Brazilian Real		—		99.99907		99.99907		—		99.99901		99.99901
—	Novo Oeste Gestão de Ativos Florestais S.A.	Brazil	Brazilian Real		—		99.99907		99.99907		—		99.99907		99.99907
76.375.371-9	Servicios Aéreos Forestales Ltda.	Chile	U.S. Dollar		14.47369		85.52544		99.99913		—		99.99898		99.99898
96.637.330-K	Servicios Logísticos Arauco S.A.	Chile	U.S. Dollar		45.00000		54.99923		99.99923		45.00000		54.99923		99.99923
—	Tecverde Engenharia S.A. (1)	Brazil	Brazilian Real		—		95.61432		95.61432		—		—		—
—	Woodaffix, LLC.	United States	U.S. Dollar		—		99.99911		99.99911		—		99.99911		99.99911

(1) Increased of participation in E2E S.A., changed it from joint venture to subsidiary. Additionally, through this subsidiary, in March 2023 Arauco increased its participation in Tecverde Engenharia S.A., thus being recognized as a subsidiary.

(2) This company was created in February of 2023.

The companies in the table below are classified as joint operations in accordance with IFRS 11. The assets, liabilities, income and expenses are recorded in relation to the Company’s ownership percentage as specified in the contractual arrangement.

Company Name	Country	Functional currency
Eufores S.A.	Uruguay	U.S. dollar
Celulosa y Energía Punta Pereira S.A.	Uruguay	U.S. dollar
Zona Franca Punta Pereira S.A.	Uruguay	U.S. dollar
Forestal Cono Sur S.A.	Uruguay	U.S. dollar
Stora Enso Uruguay S.A.	Uruguay	U.S. dollar
El Esparragal Asociación Agraria de R.L.	Uruguay	U.S. dollar
Ongar S.A.	Uruguay	U.S. dollar
Terminal Logística e Industrial M’Bopicuá S.A.	Uruguay	U.S. dollar

58

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

According to significant restrictions on the ability of subsidiaries to transfer funds to Arauco, in the form of cash dividends or repayment of borrowings and/or advances, we state the following:

Long-term debt with related entities - mutual agreement with Arauco Argentina S.A.

On June 5, 2017, Arauco signed a mutual agreement with its subsidiary Arauco Argentina S.A., pursuant to which this subsidiary received an amount of U.S.$ 250,000,000, which accrues an interest at the LIBOR interest rate for 180 days plus a fixed spread of 5.20%, with payments every six months on June 1 and December 1 of each year. As of the date of these interim consolidated financial statements, we are finalizing the change of the base rate to Term SOFR 6M, replacing the current base in LIBOR.

Since 2020, the Central Bank of the Argentine Republic (BCRA) established certain foreign exchange controls, preventing Arauco Argentina S.A. from repaying the amount of ThU.S.$ 160,000 owed under the mutual agreement described above which matured on June 1, 2022.

On July 14, 2022, Arauco Argentina S.A. paid ThU.S.$ 6,000 of the amount owed under the mutual agreement described above, remaining to pay ThU.S.$ 154,000 as of the date of these interim consolidated financial statements.

Key management personnel compensation and redundancy benefits

	January - September				July - September
	2023		2022		2023		2022
	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Salaries and bonuses		58,144		63,713		19,112		20,836
Per diem compensation to members of the Board of Directors		2,014		1,756		657		567
Termination benefits		3,149		7,585		1,543		6,592
Total		63,307		73,054		21,312		27,995

Related party receivables, current

09-30-2023

12-31-2022

Name of related party

Tax ID No.

Nature of relationship

Country

Currency

Maturity

ThU.S.$

ThU.S.$

Forestal Mininco S.A.

91.440.000-7

Common stockholder

Chile

Chilean pesos

30 days

1

1

Eka Chile S.A.

99.500.140-3

Joint venture

Chile

Chilean pesos

30 days

2,315

2,626

Colbún S.A.

96.505.760-9

Common stockholder

Chile

Chilean pesos

—

—

21

CMPC Maderas SpA.

95.304.000-K

Common stockholder

Chile

Chilean pesos

30 days

1

—

Fundación Educacional Arauco

71.625.000-8

Parent company is founder and contributor

Chile

Chilean pesos

30 days

1,247

—

Fundación Acerca Redes

65.097.218-K

Parent company is founder and contributor

Chile

Chilean pesos

—

—

41

Parque Eólico Ovejera Sur SpA.

76.839.949-2

Joint venture

Chile

Chilean pesos

—

—

100

E2E S.A.

76.218.856-2

Joint venture (actual subsidiary)

Chile

Chilean pesos

—

—

60

Orizon S.A.

96.929.960-7

Common controlling parent

Chile

Chilean pesos

30 days

4

—

EMOAC SpA.

76.208.888-6

Common controlling parent

Chile

Chilean pesos

30 days

61

1

Softys Argentina S.A. (Ex-La Papelera del Plata S.A.)

—

Common shareholder of the parent company

Argentina

Argentine pesos

30 days

3,903

4,713

TOTAL

7,532

7,563

Related party payables, current

								09-30-2023		12-31-2022
Name of related party	Tax ID No.		Nature of relationship	Country		Currency	Maturity	ThU.S.$		ThU.S.$
Copec S.A.		99.520.000-7	Common controlling parent		Chile	Chilean pesos	30 days		6,366		4,474
Abastible S.A.		91.806.000-6	Common controlling parent		Chile	Chilean pesos	30 days		191		189
Fundación Educacional Arauco		71.625.000-8	Parent company is founder and contributor		Chile	Chilean pesos	—		—		780
Red to Green S.A.		86.370.800-1	Common stockholder		Chile	Chilean pesos	30 days		7		—
Empresa Nacional de Telecomunicaciones S.A.		92.580.000-7	Common stockholder		Chile	Chilean pesos	30 days		4		4
Servicios Corporativos Sercor S.A.		96.925.430-1	Associate		Chile	Pesos chilenos	30 días		13		—
Compañía Puerto de Coronel S.A.		79.895.330-3	Subsidiary of an associate		Chile	U.S. dollar	30 days		657		202
Copec Aviation S.A.		96.942.120-8	Joint venture of controlling parent		Chile	Chilean pesos	—		—		3
Falcão MS SPE S.A.		—	Associate		Brasil	Reales	30 días		2,339		—
Agrícola San Gerardo SpA		77.017.167-9	Joint venture		Chile	Chilean pesos	30 days		140		146
Agrícola Fresno SpA		77.470.229-6	Joint venture		Chile	Chilean pesos	12-31-23		5,065		8,482
TOTAL									12,443		14,280

59

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Related party payables, non-current

								09-30-2023		12-31-2022
Name of related party	Tax ID No.		Nature of relationship	Country		Currency	Maturity	ThU.S.$		ThU.S.$
Agrícola Fresno SpA		77.470.229-6	Joint venture		Chile	Chilean pesos	12-31-24		3,283		3,283
Agrícola Fresno SpA		77.470.229-6	Joint venture		Chile	Chilean pesos	12-31-27		3,448		3,448
TOTAL									6,731		6,731

Related party transactions

Purchases

Name of related party	Tax ID No.		Nature of relationship	Country	Currency	Transaction descriptions	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Abastible S.A.		91.806.000-6	Common controlling parent	Chile	Chilean pesos	Fuel		2,845		3,207
Copec S.A.		99.520.000-7	Common controlling parent	Chile	Chilean pesos	Fuel and other		116,923		92,643
Compañía Puerto de Coronel S.A.		79.895.330-3	Subsidiary of an associate	Chile	U.S. dollar	Transport, stowage and port services		13,631		7,643
EKA Chile S.A.		99.500.140-3	Joint venture	Chile	Chilean pesos	Sodium chlorate		37,425		41,540
Portaluppi, Guzman y Bezanilla Abogados Ltda.		78.096.080-9	Common director	Chile	Chilean pesos	Legal services		846		851
Colbún S.A.		96.505.760-9	Common stockholder	Chile	Chilean pesos	Electrical Power		1,184		834
Woodtech S.A.		76.724.000-7	Indirect associate of controlling parent	Chile	Chilean pesos	Wood volumen measurement services		891		1,012
Servicios Corporativos Sercor S.A.		96.925.430-1	Associate	Chile	Chilean pesos	Other purchases		170		246
Vpia Limpia SPA		79.874.200-0	Common controlling parent	Chile	Chilean pesos	Waste management service and other purchases		236		199

Sales

Name of related party	Tax ID No.		Nature of relationship	Country	Currency	Transaction descriptions	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
EKA Chile S.A.		99.500.140-3	Joint venture	Chile	Chilean pesos	Electrical power		18,175		23,539
Fundación Educacional Arauco		71.625.000-8	Parent company is founder and contributor	Chile	Chilean pesos	IT and administrative services		171		299
CMPC Pulp S.A.		96.532.330-9	Common stockholder	Chile	Chilean pesos	Wood and chips		5		525
Softys Chile SpA.		96.529.310-8	Common stockholder	Chile	Chilean pesos	Pulp		782		—
Compañía Puerto de Coronel S.A.		79.895.330-3	Subsidiary of an associate	Chile	U.S. dollar	Other sales		277		453
E2E S.A.		76.879.577-0	Joint venture (actual subsidiary)	Chile	Chilean pesos	Wood, plywood and boards		117		246
EMOAC SPA		76.208.888-6	Subsidiary of controlling parent	Chile	Chilean pesos	Electrical Power		2,061		3,272
Softys Argentina S.A.(Ex La Papelera del Plata S.A.)		—	Common shareholder of the parent company	Argentina	Argentine pesos	Pulp		11,526		16,686

Other transactions

Name of related party	Tax ID No.		Nature of relationship	Country	Currency	Transaction descriptions	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Falcão MS SPE S.A.		—	Associate	Brazil	Reales	Capital contribution		5,095		9,664
Agrícola San Gerardo SpA		77.017.167-9	Joint venture	Chile	Chilean pesos	Capital contribution		—		136
Agrícola Fresno SpA		77.470.229-6	Joint venture	Chile	Chilean pesos	Capital contribution		1,509		31,998
Parque Eólico Ovejera Sur SpA.		76.839.949-2	Joint venture	Chile	Chilean pesos	Capital contribution		155		118
TreeCo, Inc.		—	Joint venture	United States	U.S. dollar	Capital contribution		9,230		—
TreeCo, Inc.		—	Joint venture	United States	U.S. dollar	Capital contribution		1,770		—
E2E S.A.		76.879.577-0	Joint venture (actual subsidiary)	Chile	Chilean pesos	Capital contribution		5,254		—
Tecverde Engenharia S.A.		—	Subsidiary of a joint venture	Brazil	Reales	Borrowing		2,668		—
E2E S.A.		76.879.577-0	Joint venture (actual subsidiary)	Chile	U.S. dollar	Borrowing		537		3,546

60

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 14. INVESTMENTS IN SUBSIDIARIES

The main operations carried out as of September 30, 2023 and December 31, 2022 are reported below:

On March 17, 2023, Arauco took over control of the company E2E S.A., acquiring the remaining 50% interest. The payment for this transaction amounted to ThCLP$ 102.

On June 22, 2022, a cooperation agreement was signed with the Government of Mato Grosso do Sul, Brazil. Signing this agreement is an important and preparatory step that will enable us to continue assessing the construction of a new pulp mill. If conditions allow – among which conditions are obtaining all necessary permits and board approval – this new plant would have an estimated production capacity of 2.5 million tons of short-fiber pulp and would require an estimated investment of approximately US$ 3 billion. For the same purposes, in August 2022 and through subsidiary Arauco Forest Brasil S.A., the company Arauco Celulose do Brasil S.A. was incorporated. This company participates in forestry-related activities, such as the formation of eucalyptus forests, logging, and electric power generation.

Reorganization

Arauco determined it necessary to reorganize its activity in the wood product segment by centralizing its investments in the wood market in an entity that allows a common direction and control. This is the reason why, on May 23, 2022, the company Arauco Wood Limited was created. Such international parent entity was incorporated in the United Kingdom, a country which is considered and valued as one of the main investment platforms and center global financial system, and known for its institutional stability.

In June and December 2022, Arauco, through its subsidiary Inversiones Arauco International Ltda. and the parent of the group, Celulosa Arauco y Constitución S.A., contributed their subsidiaries from the wood segment to the new company Arauco Wood Limited. These contributions were for a total amount of ThU.S.$ 1,989,972. This operation did not generate an effect within the consolidated statements of profit or loss.

With this reorganization, Arauco intends to achieve a more efficient international structure in a first-class financial center, thus generating an attractive investment focus for potential new investors or other market players. This centralization of the wood product segment will also allow a better and more efficient management, enhancing its investments with a solid structure and greater projections of profitability, growth and sustainability.

61

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 15. INVESTMENTS IN ASSOCIATES

As of September 30, 2023 and December 31, 2022, these are the main movements of investments in associates to report:

On August 8, 2022, the subsidiary Arauco Participações Florestais Ltda. from Brazil incorporated the company Falcão MS SPE S.A., and during the year 2022, Arauco contributed capital to the new company for ThR$ 49,985 (equivalents to ThU.S.$ 9,664). In 2023, Arauco contributed capital to Falcão MS SPE S.A. for ThR$ 11,270 (equivalents to ThU.S.$ 2,222).

The following tables set forth information about investments in associates.

Name	Inversiones Puerto Coronel S.A.
Country	Chile
Functional currency	U.S. dollar
Corporate purpose	Investments in movables and real estate, acquisition of companies, securities and investment instruments, investment management and development and/or participation in all kind of businesses and companies related to industrial, shipping, forestry and commercial activities.
Ownership interest (%)	50.0000%
	09-30-2023	12-31-2022
Carrying amount accounted for using equity method	ThU.S.$ 65,037	ThU.S.$ 64,000
Name	Servicios Corporativos Sercor S.A.
Country	Chile
Functional currency	Chilean pesos
Corporate purpose	Consulting services related to business management to Boards of Directors and Senior Management of all Arauco’s entities.
Ownership interest (%)	20.0000%
	09-30-2023	12-31-2022
Carrying amount accounted for using equity method	ThU.S.$ 394	ThU.S.$ 325
Name	Genómica Forestal S.A.
Country	Chile
Functional currency	Chilean pesos
Corporate purpose	Developing forestry genomics, through the use of biotechnological, molecular and bioinformatics tools with the purpose of strengthening genetic programs so as to improve the competitive position of the Chilean forestry industry for priority tree species.
Ownership interest (%)	25.0000%
	09-30-2023	12-31-2022
Carrying amount accounted for using equity method	ThU.S.$ 7	ThU.S.$ 6
Name	Consorcio Tecnológico Bioenercel S.A.
Country	Chile
Functional currency	Chilean pesos
Corporate purpose	Developing of technologies which will promote the development of a biofuels industry in Chile, obtained from lingo-cellulosic materials. The future execution of this sustainable project is financed by the Innova Chile Committee.
Ownership interest (%)	20.0000%
	09-30-2023	12-31-2022
Carrying amount accounted for using equity method	ThU.S.$ 1	ThU.S.$ 1
Name	Florestal Vale do Corisco S.A.
Country	Brazil
Functional currency	Brazilian real
Corporate purpose	Management of forestry activities.
Ownership interest (%)	49.0000%
	09-30-2023	12-31-2022
Carrying amount accounted for using equity method	ThU.S.$ 30,116	ThU.S.$ 26,910
Name	Falcão MS SPE S.A.
Country	Brazil
Functional currency	Brazilian real
Corporate purpose	Management of land for leases to related parties.
Ownership interest (%)	49.0000%
	09-30-2023	12-31-2022
Carrying amount accounted for using equity method	ThU.S.$ 15,081	ThU.S.$ 9,579

62

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Summarized financial information of associates

	Assets
09-30-2023	Inversiones Puerto Coronel S.A. ThU.S.$		Serv.Corporativos Sercor S.A. ThU.S.$			Florestal Vale do Corisco S.A. ThU.S.$			Falcão MS SPE S.A. ThU.S.$		Consorcio Tecnológico Bioenercel S.A. ThU.S.$			Genómica Forestal S.A. ThU.S.$			Total ThU.S.$
Current		1		7,002			7,087			4,200		—			9			18,299
Non-current		131,892		2,322			75,077			133,519		4			50			342,864
Total of associates		131,893		9,324			82,164			137,719		4			59			361,163
	Liabilities and Equity
	Inversiones Puerto Coronel S.A. ThU.S.$		Serv.Corporativos Sercor S.A. ThU.S.$			Florestal Vale do Corisco S.A. ThU.S.$			Falcão MS SPE S.A. ThU.S.$		Consorcio Tecnológico Bioenercel S.A. ThU.S.$			Genómica Forestal S.A. ThU.S.$			Total ThU.S.$
Current		54		6,026			410			4,008		—			—			10,498
Non-current		—		1,329			20,293			102,933		3			32			124,590
Equity		131,839		1,969			61,461			30,778		1			27			226,075
Total of associates		131,893		9,324			82,164			137,719		4			59			361,163
09-30-2023
Income		—		3,481			7,994			—		—			—			11,475
Other income / expenses		2,592		(3,074	)		(3,538	)		226		—			(1	)		(3,795	)
Net profit or loss (continuing operations) of associates		2,592		407			4,456			226		—			(1	)		7,680
Other comprehensive income		—		—			—			—		—			—			—
Comprehensive income		2,592		407			4,456			226		—			(1	)		7,680
Dividends received		—		—			105			—		—			—			105
	Assets
12-31-2022	Inversiones Puerto Coronel S.A. ThU.S.$		Serv.Corporativos Sercor S.A. ThU.S.$			Florestal Vale do Corisco S.A. ThU.S.$			Falcão MS SPE S.A. ThU.S.$		Consorcio Tecnológico Bioenercel S.A. ThU.S.$			Genómica Forestal S.A. ThU.S.$			Total ThU.S.$
Current		1		5,677			2,368			413		—			12			8,471
Non-current		129,819		2,273			73,089			19,136		4			52			224,373
Total of associates		129,820		7,950			75,457			19,549		4			64			232,844
	Liabilities and Equity
	Inversiones Puerto Coronel S.A. ThU.S.$		Serv.Corporativos Sercor S.A. ThU.S.$			Florestal Vale do Corisco S.A. ThU.S.$			Falcão MS SPE S.A. ThU.S.$		Consorcio Tecnológico Bioenercel S.A. ThU.S.$			Genómica Forestal S.A. ThU.S.$			Total ThU.S.$
Current		54		4,527			1,066			1		—			7			5,655
Non-current		—		1,798			19,475			—		3			28			21,304
Equity		129,766		1,625			54,916			19,548		1			29			205,885
Total of associates		129,820		7,950			75,457			19,549		4			64			232,844
09-30-2022
Income		—		2,894			10,183			—		—			—			13,077
Other income / expenses		8,402		(2,549	)		(5,031	)		—		(1	)		—			821
Net profit or loss (continuing operations) of associates		8,402		345			5,152			—		(1	)		—			13,898
Other comprehensive income		—		—			—					—			—			—
Comprehensive income		5,402		345			5,152			—		(1	)		—			13,898
Dividends received		—		—			99			—		—			—			99

63

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Reconciliation of investment in associates and joint ventures

	09-30-2023			12-31-2022
	ThU.S.$			ThU.S.$
Opening balance as of January 1		365,671			336,642
Changes
Investment in joint ventures, additions (*)		5,095			9,664
Investment in joint ventures, additions (**)		17,018			32,252
Disposals, investment in associates and joint ventures (***)		—			(1,878	)
Share of profit (loss) in investment in associates		3,384			7,069
Share of profit (loss) in investment in joint ventures		11,403			26,615
Dividends received, Investments in associates		(605	)		(35,187	)
Increase (decrease) in foreign exchange currency on translation of associates and joint ventures		(2,292	)		(11,779	)
Other increase (decrease) in investment in associates and joint ventures		(3,725	)		2,273
Total changes		31,178			29,029
Closing balance		396,849			365,671

Year 2023

(*) Arauco Participações Florestais Ltda. made a capital contribution to Falcão MS SPE S.A., for ThR$ 24,990 that is equivalent to ThU.S.$ 2,222 for 24,990,000 shares.

(**) On January 9, 2023 Maderas Arauco S.A. made a capital contribution to E2E S.A., through the capitalization of loans maintained with this entity for Th$ 4,446,808 that is equivalent to ThU.S.$ 5,254 for 4,446,808 shares.

• Forestal Arauco S.A. and Agrícola San Carlos SpA. In March 2023 made a non-monetary assets contribution to Agrícola Fresno SpA for ThU.S.$ 1,509. For this contribution they subscribed 266,204 and 35,556 shares respectively. In the act, Agrícola San Carlos SpA sold the subscribed shares of Agrícola Fresno SpA to Forestal Arauco S.A., maintaining Forestal Arauco S.A. a 50% of participation in Agrícola Fresno SpA.

• Arauco Bioenergía S.A., in the month of July made capital contributions to the company Parque Eólico Ovejera Sur SpA. for ThU.S.$ 125,000 equivalent to ThU.S.$ 155 corresponding to 125 shares.

• Arauco Venture Limited., in the month of September made capital contributions to the company TreeCo, Inc. for a total of ThU.S.$ 11,000.

Year 2022

(*) During the year 2022, Arauco Participações Florestais Ltda. made a capital contribution to Falcão MS SPE S.A., for ThR$ 49,985 that in total is equivalent to ThU.S.$ 9,664 for 49,984,900 shares.

(**) During the year 2022, the main movement corresponds to:

• Forestal Arauco S.A. made a capital contribution in assets as non-monetary assets to Agrícola Fresno, for ThU.S.$ 31,998 for 6,399,520 shares.

(***) ThU.S.$ 1,878 equivalent to R$ 9,800,000 corresponding to a capital decrease of Arauco Forest do Brasil S.A. en Florestal Vale Do Corisco S.A. on October 11, 2022.

	09-30-2023		12-31-2022
	ThU.S.$		ThU.S.$
Carrying amount of investments in associates accounted for using equity method		110,635		100,821
Carrying amount of investments in joint ventures accounted for using equity method		286,214		264,850
Total investment accounted for using equity method		396,849		365,671

64

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 16. INTERESTS IN JOINT ARRANGEMENTS

Investments and contributions made

The main operations carried out as of September 30, 2023 and December 31, 2022 are reported below:

On September 13, 2023, Arauco, through its United Kingdom investment company Arauco Ventures Ltd., acquired 51.13% of the company TreeCo, Inc. in the United States. This company is engaged in research and studies focusing on the development and commercial application of genome editing, biotechnology and forest genetics technologies and/or knowledge, including in vitro and ex vitro plant propagation, tissue culture and clone delivery, plant establishment, wood property analysis and development or sale of clones, seedlings and trees for application to forestry. The price paid at the closing of the financial statements as of September 30, 2023 for the shares acquired and subscribed in this transaction amounted to ThU.S.$11,000.

Arauco carried out the initial and provisional records of this acquisition based on the information available to date, which is basically the paid value.

As of January 9, 2023, Maderas Arauco S.A. made a capital contribution to E2E S.A., through the capitalization of loans maintained with this entity for ThCLP$ 4,446,808 (equivalent to ThU.S.$ 5,254) for 4,446,808 shares.

On October 13, 2021, Arauco, through its subsidiary Forestal Arauco S.A. created Agrícola Fresno SpA with the purpose of developing agricultural projects. It was incorporated with a capital of ThU.S.$ 1,000, Forestal Arauco S.A. contributed the equivalent of 50% of the shares of the new subsidiary. In November of 2021, it was agreed to increase the capital to ThU.S.$ 7,452 and during the period of 2022 ThU.S.$ 31,998, Forestal Arauco S.A. contributed all of the committed capital (50%) through the contribution of assets.

As of September 30, 2023 and December 31, 2022, Arauco has not made contributions to Uruguayan companies Celulosa y Energía Punta Pereira S.A. and Zona Franca Punta Pereira S.A.

The investments in Uruguay qualify as a joint operation, and Arauco holds a 50% interest in these investments. In relation to “other rights and contractual conditions”, the joint operation has the primary objective of providing the parties an output. As established in the “Pulp Supply Agreement”, both Arauco and its partner have the obligation to acquire 100% of the yearly pulp produced by the joint operation. Arauco has recognized the assets, liabilities, income and expenses associated with its interest ownership, pursuant to IFRS 11.

Arauco holds a 50% interest in Sonae Arauco, which subsidiary produces and commercializes wood panels, of the type of MDF, PB and OSB, and sawn timber, through the operation of two panel plants and one sawmill in Spain; two panel plants and one resin plant in Portugal; three panel plants in Germany and two panel plants in South Africa.

Furthermore, Arauco holds a 50% ownership in Eka Chile S.A. (“Eka”), a company that sells sodium chlorate to pulp plants in Chile. There is a contractual agreement with this company whereby Arauco has engaged in an economic activity subject to common control, which is classified as a joint venture.

65

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The following tables set forth summarized financial information of the more significant interests in joint arrangements, which qualify as joint operations:

	09-30-2023					12-31-2022
Celulosa y Energía Punta Pereira S.A. (Uruguay)	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		408,795			74,530		478,480			114,012
Non-current		1,947,912			134,945		1,982,237			141,588
Equity		—			2,147,232		—			2,205,117
Total joint arrangement		2,356,707			2,356,707		2,460,717			2,460,717
Investment		1,073,616					1,102,559
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		744,634					788,289
Expenses		(502,994	)				(474,815	)
Joint arrangement net income (loss)		241,640					313,474
	09-30-2023					12-31-2022
Forestal Cono Sur S.A. (consolidated)	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		36,217			6,284		30,769			5,894
Non-current		159,330			1,923		158,787			4,119
Equity		—			187,340		—			179,543
Total joint arrangement		195,547			195,547		189,556			189,556
Investment		93,670					89,772
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		8,011					2,374
Expenses		(214	)				1,455
Joint arrangement net income (loss)		7,797					3,829
	09-30-2023					12-31-2022
Eufores S.A. (consolidated)	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		180,390			261,443		125,027			193,423
Non-current		927,232			104,017		892,452			119,050
Equity		—			742,162		—			705,006
Total joint arrangement		1,107,622			1,107,622		1,017,479			1,017,479
Investment		371,081					352,503
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		211,285					188,377
Expenses		(173,627	)				(163,444	)
Joint arrangement net income (loss)		37,658					24,933
	09-30-2023					12-31-2022
Zona Franca Punta Pereira S.A. (Uruguay)	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		49,331			133,812		13,824			101,385
Non-current		427,067			—		432,769			—
Equity		—			342,586		—			345,208
Total joint arrangement		476,398			476,398		446,593			446,593
Investment		171,293					172,604
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		15,946					15,611
Expenses		(18,568	)				(7,143	)
Joint arrangement net income (loss)		(2,622	)				8,468

66

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The following tables set forth summarized financial information of the more significant interests in joint ventures accounted in for equity method and its movements are presented in Note 15:

	09-30-2023					12-31-2022
Eka Chile S.A.	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		18,149			4,049		17,673			4,821
Non-current		39,465			5,226		39,496			5,347
Equity		—			48,339		—			47,001
Total joint arrangement		57,614			57,614		57,169			57,169
Investment		24,170					23,501
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		38,937					34,161
Expenses		(36,600	)				(31,128	)
Joint arrangement net income (loss)		2,337					3,033
Other comprehensive income		—					—
Comprehensive income		2,337					3,033
Dividends		500					500
	09-30-2023					12-31-2022
Sonae Arauco S.A.	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		276,268			207,308		320,837			229,330
Non-current		677,151			320,846		668,138			352,759
Equity		—			425,265		—			406,886
Total joint arrangement		953,419			953,419		988,975			988,975
Net assets		191,574					180,896
Net asset adjustment (goodwill)		21,059					22,547
Investment		212,633					203,443
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		795,587					988,483
Expenses		(768,166	)				(909,169	)
Joint arrangement net income (loss)		27,421					79,314
Other comprehensive income		—					—
Comprehensive income		27,421					79,314
Dividends		—					33,176
	09-30-2023					12-31-2022
Agrícola El Paque SpA.	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		347			327		966			1,360
Non-current		16,164			2,893		18,914			5,450
Equity		—			13,291		—			13,070
Total joint arrangement		16,511			16,511		19,880			19,880
Investment		6,645					6,534
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		—					—
Expenses		42					153
Joint arrangement net income (loss)		42					153
Other comprehensive income		—					—
Comprehensive income		42					153
Dividends		—					—
	09-30-2023					12-31-2022
Parque Eólico Ovejera del Sur SpA.	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		168			69		100			224
Non-current		2,999			—		2,885			—
Equity		—			3,098		—			2,761
Total joint arrangement		3,167			3,167		2,985			2,985
Investment		1,549					1,381
	09-30-2023 ThU.S.$					09-30-2022 ThU.S.$
Income		—					—
Expenses		(42	)				(11	)
Joint arrangement net income (loss)		(42	)				(11	)
Other comprehensive income		—					—
Comprehensive income		(42	)				(11	)
Dividends		—					—

67

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

	02-28-2023					12-31-2022
E2E S.A.	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		7,693			20,282		7,361			20,327
Non-current		21,411			2,520		20,914			11,301
Equity		—			6,302		—			(3,353	)
Total joint arrangement		29,104			29,104		28,275			28,275
Investment		3,151					—
	02-28-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		224					1,571
Expenses		(1,244	)				(14,847	)
Joint arrangement net income (loss)		(1,020	)				(13,276	)
Other comprehensive income		—					—
Comprehensive income		(1,020	)				(13,276	)
Dividends		—					—
	09-30-2023					12-31-2022
Agrícola San Gerardo SpA.	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		476			99		844			62
Non-current		4,736			1,675		5,661			2,871
Equity		—			3,438		—			3,572
Total joint arrangement		5,212			5,212		6,505			6,505
Investment		1,719					1,786
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		—					—
Expenses		20					64
Joint arrangement net income (loss)		20					64
Other comprehensive income		—					—
Comprehensive income		20					64
Dividends		—					—
	09-30-2023					12-31-2022
Agrícola Fresno SpA	Assets ThU.S.$			Liabilities ThU.S.$		Assets ThU.S.$			Liabilities ThU.S.$
Current		3,973			1,165		28,952			1,657
Non-current		80,403			—		58,755			7,232
Equity		—			83,211		—			78,818
Total joint arrangement		84,376			84,376		87,707			87,707
Investment		41,606					39,409
	09-30-2023					09-30-2022
	ThU.S.$					ThU.S.$
Income		—					—
Expenses		(173	)				91
Joint arrangement net income (loss)		(173	)				91
Other comprehensive income		—					—
Comprehensive income		(173	)				91
Dividends		—					—

68

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 17. IMPAIRMENT OF ASSETS

In 2022, as a result of loss of dryer, an impairment provision was made for ThU.S.$ 10,500 in Valdivia mill, which was recognized into impairment provisions of assets.

In 2022, as a result of closing MDP line of Pien mill in Brasil, an impairment provision was made for ThU.S.$ 14,388, which amount include an impairment of goodwill for ThU.S.$ 3,895.

At the end of 2022, considering the current projections of future margins, exchange differences and the sustained increasing risk in the Argentine Republic, and applying the usual procedures for determining impairment in accordance with IFRS, in the subsidiary Arauco Argentina, an impairment was recorded in the cash generating unit for the manufacture of celulose pulp, which to date is ThU.S.$ 127,260.

The premises included in this projection consider a discount rate of 22.07%, sales volume based on expected production data, sales prices based on the projection of international consultants and future investments of the machinery in its current state.

On September 12, 2023 the decision to suspend the manufacturing pulp process at the Licancel mill (Chile) was informed, for which an impairment provision was recognized for a total of ThU.S.$ 75,343 (includes Property, plant and equipment and Inventory of spare parts).

As of September 30, 2023, an impairment provision of ThU.S.$ 6,037 was recognized corresponding to the closure of the Aserraderos Horcones II in Chile.

As of September 30, 2023, impairment provisions associated with sales and recoveries from property, plant and equipment from the subsidiaries of United States and Canada, impairment provisions associated with property, plant and equipment were reversed for a total of ThU.S.$ 6,343 (ThU.S.$ 7,014 as of December 31, 2022).

All impairment provision charges are presented in the interim consolidated statement of profit or loss under other expenses by function, whose movements are shown below:

Changes in CGUs impairment provision	09-30-2023 ThU.S.$			12-31-2022 ThU.S.$
Opening balance		348,350			214,042
Impairment loss recognized in profit or loss		64,683			141,137
Reversal of impairment loss recognized in profit or loss		(7,128	)		(9,164	)
Increase (decrease) in foreign exchange		2,715			2,335
Closing balance		408,620			348,350

Changes in provisions for impairment of property, plant and equipment and spare parts due to technical obsolescence or loss to forest due to fires, are shown below:

Changes in impairment provision from impaired assets	09-30-2023 ThU.S.$			12-31-2022 ThU.S.$
Opening balance		18,085			11,798
Impairment loss recognized in profit or loss		19,470			13,823
Reverse of impairment recognized loss in profit or loss		(7,049	)		(7,691	)
Increase (decrease) in foreign exchange		61			155
Closing balance		30,567			18,085

69

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Goodwill

Goodwill is allocated to the groups of cash-generating units that are expected to benefit from the synergies of the combination.

At the date of these interim consolidated financial statements, the balance of goodwill is ThU.S.$ 55,366 (ThU.S.$ 54,800 on December 31, 2022), as shown below:

	09-30-2023		12-31-2022
Goodwill	ThU.S.$		ThU.S.$
Arauco Canada Ltd. (Flakeboard Company Ltd)		40,680		40,676
Arauco do Brasil S.A. (Pien mill)		13,954		13,392
Arauco North America, Inc. (Prime-Line, Inc.)		732		732
Closing balance		55,366		54,800

	09-30-2023		12-31-2022
Goodwill movement	ThU.S.$		ThU.S.$
Opening balance at January 1		54,800		57,697
Increase (decrease) impairment		—		(3,895	)
Increase (decrease) in foreign exchange		566		998
Closing balance		55,366		54,800

Of the total of goodwill, ThU.S.$ 40,680 (ThU.S.$ 40,676 as of December 31, 2022) were generated by the acquisition of “Flakeboard” (currently Arauco Canada Ltd.), a company that, directly and/or through its subsidiaries, possesses and operates 7 panel plants, for which Arauco acquired and paid, on September 24, 2012, the price of ThU.S.$ 242,502 for the 100% interest ownership. The remaining balance of ThU.S.$ 732 corresponds to the acquisition of Prime-Line Inc., on September 1, 2019, for which Arauco North America Inc, a subsidiary of Arauco Canada Ltd. paid ThU.S.$ 18,880 for all the shares of said company.

The recoverable amount for Flakeboard’s cash generating unit was determined based on the calculations of its value in use, and this calculation was made using cash flow projections covering a 7-year term, a period time, which is considered to represent the cyclicality of the business performance, applying a nominal discount rate of 7% which reflects current market assessments for the wood products segment in North America.

Due to the investment in panel plant in Pien, Brazil, there is a goodwill of ThU.S.$ 13,954 (ThU.S.$ 13,392 as of December 31, 2022).

The recoverable amount for the Pien mill’s cash generating unit was determined based on the calculations of its value in use, and this calculation was made using cash flow projections covering a 5-year term based on the operational plan approved by the Administration, applying a 7.4% nominal discount rate that reflects current evaluations for the panel segment in Brazil.

As of September 30, 2023, the carrying value of the goodwill of the plants did not exceed their recoverable value, except at the end of December 2022 in Brazil for the MDF line of the Pien mill, was recognized an impairment of the goodwill, and it was for ThU.S.$ 3,895.

70

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 18. PROVISIONS, CONTINGENT ASSETS AND CONTINGENT LIABILITIES

The contingent liabilities for outstanding litigations are as follows:

Celulosa Arauco y Constitución S.A.

On April 26, 2023, Ingeniería y Construcción Sigdo Koppers S.A. (“ICSK”) filed before the Arbitration and Mediation Center of the Santiago Chamber of Commerce an arbitration claim against the Company, requesting the specific performance of contract No. 906, Civil Electromechanical Assembly Digester, Washing, Bleaching, Machine and Final Line, executed between the parties on June 18th, 2019 (“Contract”), also seeking the compensation of damages. The total sum claimed by ICSK amounts to CLP$ 246,650,876,566 (ThU.S.$ 275,403 as of September 30, 2023), plus adjustments. It is relevant to highlight that, according to ICSK’s claim, the above amount should be reduced by CLP$ 60,657,576,943 (ThU.S.$ 67,728 as of September 30, 2023), owed by ICSK to Arauco, once the claimed amount has been readjusted. ICSK also requests that the claimed sum be paid with current interest, computed as of April 2023.

On June 16, 2023, Arauco answered the claim filed by ICSK, requesting the rejection of the claim. Simultaneously, Arauco filed a counterclaim against ICSK, seeking a declaration that ICSK breached the term of the Contract and, consequently, for the arbitration court to order ICSK to pay the fine associated with such breach, which amounted, at the time the claim was answered, to the sum of CLP$ 37,302,818,060 (ThU.S.$ 41,651 as of September 30, 2023). Arauco also demanded the restitution of the total amount of CLP$ 60,657,576,943 (ThU.S.$ 67,728 as of September 30, 2023), plus adjustments and interest, paid to ICSK during the performance of the Contract as consideration for various items.

On August 29, 2023, Arauco filed its rejoinder to the main claim and its reply to the counterclaim. On September 29, 2023, ICSK filed its rejoinder to the counterclaim, thus closing the discussion stage of these proceedings.

On October 24, 2023, a hearing was held that began the conciliation period.

Considering that the Company’s position is supported by solid legal arguments, there is a reasonable margin of obtaining a favorable result for the Company and that is why, as of September 30, 2023, Arauco has not established any provision for this contingency.

Celulosa Arauco y Constitución S.A., Forestal Arauco S.A., Maderas Arauco S.A. and Servicios Logísticos Arauco S.A.

1. On August 13, 2018, Asociación Gremial de Dueños de Camiones de Constitución (ASODUCAM) filed a complaint seeking the performance of a contract and claiming compensation for damages against Celulosa Arauco y Constitución S.A. before the Civil Court of Constitución (C-757-2018), Forestal Arauco S.A., Maderas Arauco S.A. and Servicios Logísticos Arauco S.A., The complaint is based on assumptions on alleged breaches of some agreements for the allocation, distribution and supply of cargo volumes for the years 2001 and 2005, initially executed by associates of ASODUCAM with Forestal Arauco S.A., and then, allegedly, with Servicios Logísticos Arauco S.A., in favor of the other two defendants, Celulosa Arauco and Constitución S.A. and Maderas Arauco S.A. The complaint seeks to enforce the contract, plus CLP$575,000,000 (equal to ThU.S.$ 642 as of September 30, 2023) in compensation for damages. In the alternative, it claims (a)

71

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

CLP$11,189,270,050 (equivalent to ThU.S.$ 12,494 as of September 30, 2023), for actual damages; (b) CLP$ 11,189,270,050 monthly during the entire course of the trial, until the termination of the contract is declared in the final ruling, for loss of profits, and (c) CLP$5,000,000,000 (equivalent to ThU.S.$ 5,583 as of September 30, 2023) for moral damages.

On August 28, 2018 the claim was served upon Celulosa Arauco y Constitución S.A., Forestal Arauco S.A. and Maderas Arauco S.A., but notification for Servicios Logísticos Arauco S.A. is pending.

On February 28, 2023, the Court ordered the case to be archived.

On August 31, 2023, upon the claimants’ request, the Court ordered the case to be reopened.

On September 7, 2023, Asoducam withdrew its lawsuit against Servicios Logísticos S.A.

On October 4, 2023, the three respondents were notified of the withdrawal of the lawsuit and the status of the trial.

On October 6, 2023, the three respondents - Celulosa Arauco y Constitución S.A., Forestal Arauco S.A. and Maderas Arauco S.A. - filed a motion requesting for the proceedings to be declared abandoned (abandonment of the procedure).

Currently, a decision by the court is still pending on the motion to declare the proceedings abandoned as argued by the respondents.

Considering that the Company’s position is supported by solid legal arguments, there is a reasonable margin of obtaining a favorable result for the Company and that is why, as of September 30, 2023, Arauco has not established any provision for this contingency.

Forestal Arauco S.A.

On July 7, 2015 Inversiones Forestales Los Alpes Limitada and Forestal Neltume-Carrasco S.A. filed a claim against Forestal Arauco S.A. before the Civil Court of Angol (C-502-2015), in which they request that Forestal Arauco S.A. restitute the material possession of 1,855.9 hectares, which would be part of their property “Resto del Fundo Los Alpes”, which would have an area of approximately 2,700 hectares. Likewise, they requested that it be declared that the property is the exclusive domain of the actors, the restitution of the civil and natural fruits, in addition to the deteriorations that the property would have experienced, with litigation costs.

On May 29, 2019, the lawsuit was answered, and the counterclaim of the acquisitive prescription was filed.

On September 1, 2020, the court received the case. Moreover, the resolution was notified on August 30, 2022, along with the resolution to reactivate the discovery period.

On September 2, 2022, the company filed an abandonment incident of procedures.

On March 16, 2023, the claimants requested a ruling on the motion to declare the abandonment of proceedings. This petition is yet to be resolved.

72

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Considering that the Company’s position is supported by solid legal arguments, there is a reasonable margin of obtaining a favorable result for the Company and that is why, as of September 30, 2023, Arauco has not established any provision for this contingency.

Arauco Argentina S.A.

Pursuant to law No. 25,080, the former Secretary of Agriculture, Livestock, Fishing and Foodstuffs, the enforcement agency referred to in the law approved, by Res. No. 952/2000, the forestry and industrial-forestry projects submitted by Arauco Argentina S.A. In the context of these projects, the Company afforested: 1) 4,777 hectares during 2000, in observance of its committed yearly plan; and 2) 23,012 hectares between 2000 and 2006 as a part of the multi-year afforestation plan. Likewise, a sawmill was built with installed capacity to produce 250,000 m3 of sawn timber per year.

On January 11, 2001, Arauco Argentina S.A. submitted an expansion for the approved industrial-forestry project. The expansion was approved via Res. No. 84/03 issued by the former Secretary of Agriculture, Livestock, Fishing and Foodstuffs. In accordance with the assumed obligations, the Company built a MDF board (panels) plant and afforested 8,089 hectares between 2001 and 2006.

Additionally, the Company has filed yearly forestry plans between years 2007 and 2020 for its local operations in the provinces of Misiones and Buenos Aires.

On March 25, 2019, the Secretary of Agriculture, Livestock and Fishing approved the resolution No. 2019-55-APN-SECAGYP#MPYT, approving the annual forestry plan for 2007. In addition, said organism through the resolution No. 2019-114-APN-SECAGYP#MPYT approved the annual forestry plan for 2009 on June 12, 2019, and through the resolution No. 2019-228-APN-SECAGYP#MPYT approved the annual forestry plan for 2008 on November 29, 2019. For this reason, Arauco Argentina S.A. may compute the exemption in the income tax related to the forest appraisal on the plantations to be harvested from the lands included in those plans as from the 2019 period.

In March 2005, Note No. 145/05 of the Subsecretary of Agriculture, Livestock and Afforestation suspended the benefit that exempted Arauco Argentina S.A. from paying export duties under Law No. 25,080. This measure is currently under discussion by the Company. On November 8, 2006, the V Chamber of the National Appeals Court for Adversarial Administrative and Federal Matters issued a ruling ordering Arauco Argentina S.A. to continue to enjoy an exemption from paying the exportation duties, in the same manner and scope it had prior to the suspension ordered by Note No. 145/05, if the clearance of merchandise is performed pursuant to the guarantee regime established in article 453, subsection a) of the Customs Code, for the exempted tax obligation. The judicial measure became effective beginning in March of 2007 by collateralization through the granting of bond (caution) policies for each shipment permits exempted from payment of export duty. The company maintains an assignment of funds equivalent to $ 23,821 for guaranteed export duties between 2007-2015, which appears under long-term provisions. Additionally, the Company filed a restitution claim for a total amount of ThU.S.$ 6,555, plus interest accrued from the service of the claim, corresponding to export duties between March 2005 and March 2007, as a result of the application of Note 145/05 issued by the Undersecretary of Agriculture, Livestock and Afforestation. The Company’s claim is being heard under case file No. 21830/2006 before the Federal Contentious Administrative Court No. 4. On October 28, 2019, a judgment of first instance was issued in said case, rejecting the claim and imposing the litigation costs on Arauco. Against that judgment, the Company

73

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

filed an appeal and expressed the corresponding arguments in December 2019. On June 15, 2022, the Chamber of Appeals confirmed the judgement of first instance. On July 1, 2022, Arauco Argentina filed the Federal Extraordinary Appeal before the Supreme Court of Justice. The Chamber admitted the appeal lodged by Arauco regarding the federal matter of the litigation; however, the grounds pertaining to arbitrariness were dismissed. Arauco filed a direct complaint before the Supreme Court, seeking for the higher court to broaden its examination of the case and also address such argument. This resolution of this petition is still pending.

On the other hand, Arauco Argentina S.A. currently has a guarantee at an amount of $ 435,952,315 Argentine pesos (ThU.S.$ 1,246 as of September 30, 2023) in favor of the Secretary of Agriculture, Livestock and Fishing.

Arauco Argentina S.A. believes that it has complied with all of the obligations imposed upon it by the system set forth under Law No. 25,080.

Arauco do Brasil S.A.

1) The Federal Reserve of Brazil contested the amortization of goodwill resulting from acquisitions of Placas do Paraná, Tafibrás, Tafisa (now, Arauco do Brasil S.A.) y Dynea Brasil S.A.

On July 20, 2015, Arauco do Brasil was notified of the first-level administrative ruling which partially upheld the infringement. Against this ruling, a Voluntary Appeal was filed seeking to revoke the Infringement Notice before the Brazilian Administrative Tax Council (Conselho Administrativo de Recursos Fiscais de Brasil or “CARF”), which is the second administrative level.

The CARF’s decision was issued on May 16, 2017 and took into consideration certain arguments presented by the Company regarding the premium but preserving other charges. On September 27, 2018, Arauco do Brasil was notified of the CARF’s decision, for which Arauco do Brasil S.A. filed an appeal for declaration embargoes, to elicit clarifications from the CARF regarding certain points of the decision. On January 25, 2019, the CARF ruled that there were no clarifications or omissions to be made and, consequently, granted a term for filing the last remedy within the administrative realm (“Special Remedy”). This Special Remedy was submitted before the Upper Chamber of Fiscal Remedies of the CARF (CSRF) on February 11, 2019, reiterating the Company’s defense allegations regarding the matters and charges that remained in such process.

On August 28, 2020, the Company was served with an intermediate decision in Grievance of Instrument, issued by CARF that divided the claim into two parts, one at the administrative level and the other one at the judicial level:

I – The administrative level fine(deductibility of interest and isolated fine of 50%) whose estimated amount of R$34.5 million (equivalent to ThU.S.$ 6,884 as of September 30, 2023). Pursuant to these requirements on March 27, 2023, Arauco do Brasil adhered to the government program of reduction of fiscal litigation which permits a reduction of the 65% of the entire amount of the debt through the payment of the 35% of the debt in two ways: (a) payment in cash of the 30%, totaling R$3.7 million (ThU.S.$ 733 as of September 30, 2023) and (b) payment of 70% of fiscal losses, totaling R$8.6 million (ThU.S.$ 1,711 as of September 30, 2023).

74

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Subsequently, Arauco do Brasil performed the payment in cash and also the offset with tax losses. Notwithstanding the foregoing, the Federal Reserve of Brazil (Brazilian tax service) must confirm Arauco do Brasil’s compliance with the program, thus closing the part of the case which was being reviewed before an administrative venue.

II – Part of the case that remained in a judicial venue (contractual expenses deducted in the purchase of Tafisa Brasil; interest and legal expenses on debts in the amnesty program; Imposto de Renda Pessoa Jurídica, or “IRPJ”, and lower Contribuição Social sobre o Lucro Líquido, or “CSLL” whose updated estimated amount is R$ 42,167,507 (ThU.S.$ 8,412 as of September 30, 2023). Arauco do Brasil filed the Tax Debt Annulment Action.

On March 9, 2023, the trial court issued a judgment that was partially favorable to Arauco do Brasil, upholding the aforementioned claims, and thus setting aside the portion of the debt corresponding to R$ 26,554,677 (ThU.S.$ 5,298 as of September 30, 2023). However, the judgment rejected the claim related to interest and legal expenses on debts under the amnesty program, which amount to R$ 15,612,831 (ThU.S.$ 3,115 as of September 30, 2023).

Arauco filed a motion to clarify the ruling, which was partially upheld to correct a material error in the judgment. On May 29, 2023, the Federal Reserve filed an appeal seeking the revocation of the judgment in the section that was favorable to Arauco, while, on June 26, 2023, Arauco also filed an appeal, but seeking the ratification of the judgment regarding interest and legal expenses on debts in the amnesty program. Arauco filed its counter-arguments to the Appeal of the National Treasury and is currently awaiting the filing of counter-arguments by the National Treasury to subsequently send the case to the Court for an appellate judgment.

After the submission of counter-arguments by both parties, on July 18, 2023 the case was referred to the court for an appellate trial. The case is currently awaiting trial in court.

Considering that the Company’s position is supported by solid legal arguments, there is a reasonable margin of obtaining a favorable result for the Company and that is why, as of September 30, 2023, Arauco has not established any provision for this contingency.

2) In 2013, a service provider instituted a civil lawsuit against us seeking compensation for damages allegedly caused by Arauco’s unilateral termination of its contract in connection with the implementation of the MDF 2 line of the Jaguariaiva mill. On November 01, 2021, the Civil Court of Curitiba issued its ruling, ordering Arauco to pay to the service provider an amount of ThR$ 84,000 (ThU.S.$ 16,758 as of September 30, 2023) in consideration of the alleged damages borne by the service provider during the course of the services contracts and as a result of its early termination by Arauco.

After the judgment, we were summoned and on March 8, 2022 we filed an Appeal, and the opposing party was summoned to present arguments on our appeal and filed the petition on April 11, 2022, also appealing the judgment.

In April 2023, a favorable ruling was handed down in our Appeal and we succeeded in annulling the judgment so that the case could return to its origin. This annulment ruling will also affect the expert evidence, which will have to be produced again. As a result, the provision of R$ 42,945,528 (ThU.S.$ 8,568 as of September 30, 2023) was fully reversed. In May 2023, the contractor company filed a Motion for Clarification presenting alleged omissions, in an attempt to preserve the decision or at least the evidence already produced. Review of these remedies is currently pending. In July 2023, the appeal was dismissed.

75

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

In August 2023, the contractor filed a Special Appeal before the Higher Court of Justice, in an attempt to reverse the decision in favor of Arauco. We are waiting for a decision on the admissibility of the appeal to proceed to trial.

As of September 2023, a judgment on the admissibility of the appeal is still pending in this case.

Arauco Industria de México, S.A. de C.V. (before Maderas y Sintéticos de México, S.A. de C.V.

On December 12, 2022, the Tax Administration Service issued tax credit assessment resolution number 900-04-04-00-00-00-2022-978 corresponding to the 2014 tax year. Under such assessment, objections against the following items were filed: (i) the deduction of interest in the historical amount of $ 85,172,274 Mexican pesos (ThU.S.$ 4,894 as of September 30, 2023), from loans granted by Masisa S.A. (Chile); (ii) the tax loss in the total amount of $ 275,986,671 Mexican pesos (ThU.S.$ 15,858 as of September 30, 2023); (iii) the deduction of payments made to Masisa S.A. for logistics services in the total amount of $ 3,058,221 Mexican pesos (ThU.S.$ 176 as of September 30, 2023); (iv) the alleged generation of non-distributed dividends related to the payments indicated in items (i) and (iii) above; (v) the rejection of contributions to the Single Contribution Account in amounts expressed in Mexican pesos of $ 342,372,000 (ThU.S.$ 19,672 as of September 30, 2023), $ 66,250,020 (ThU.S.$ 3,807 as of September 30, 2023), $ 46,389,980 (ThU.S.$ 2,665 as of September 30, 2023) and $ 11,457,000 Mexican pesos (ThU.S.$ 658 as of September 30, 2023), respectively; and (vi) an alleged incorrect application of the double taxation avoidance treaty between Mexico and Chile. The total amount of omitted tax, updates, surcharges, and fines assessed to the company amounts to $ 423,687,300 Mexican pesos (ThU.S.$ 24,344 as of September 30, 2023).

On February 13, 2023, a motion to revoke was filed against the above assessment, before the General Legal Administration of the Tax Administration Service. Currently, additional evidence was submitted, and subsequently, the tax authorities must issue a ruling which, if unfavorable, could be challenged by the Company before the Federal Court of Administrative Justice.

Considering that the Company’s position is supported by solid legal arguments, there is a reasonable margin of obtaining a favorable result for the Company and that is why, as of September 30, 2023, Arauco has not established any provision for this contingency.

At the closing date, there are no other contingencies in which the Companies act as obligor, that may significantly affect their financial, economic or operational conditions.

76

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Provisions recorded as of September 30, 2023 and December 31, 2022 are as follows:

	09-30-2023		12-31-2022
Classes of Provisions	ThU.S.$		ThU.S.$
Short-term provisions		5,655		9,513
Provisions for litigations		681		639
Other short-term provisions		4,974		8,874
Long-term provisions, non-Current		29,701		40,706
Provisions for litigations		29,701		39,029
Other long-term provisions		—		1,677
Total provisions		35,356		50,219

	09-30-2023
Movements in provisions	Litigations (*) ThU.S.$			Other Provisions (**) ThU.S.$			Total ThU.S.$
Opening balance		39,668			10,551			50,219
Changes in provisions
Additional provisions		20,002			—			20,002
Increase due to business combination		83			—			83
Used provisions		(921	)		(3,881	)		(4,802	)
Reversal of unused provision		(26,492	)		(1,676	)		(28,168	)
Increase (decrease) in foreign exchange		(1,808	)		(20	)		(1,828	)
Other increases (decreases)		(150	)		—			(150	)
Total changes		(9,286	)		(5,577	)		(14,863	)
Closing balance		30,382			4,974			35,356

(*) The increase in litigations is mainly made up of ThU.S.$ 18,386 (subsidiaries in Brazil) for civil and labor lawsuits. In addition, the decrease legal litigations correspond mainly to the reversal of the provision for a lawsuit with a supplier in the Arauco do Brasil S.A.

(**) The decrease in Other Provisions corresponds mainly to the reversal of the provision for dismantling of Line 1 o Arauco mill and the decrease in the balance of the provision for negative equity of E2E S.A.

	12-31-2022
Movements in provisions	Litigations (*) ThU.S.$			Other Provisions ThU.S.$		Total ThU.S.$
Opening balance		29,886			—		29,886
Changes in provisions
Additional provisions		24,582			8,875		33,457
Used provisions		(13,652	)		—		(13,652	)
Increase (decrease) in foreign exchange		(1,144	)		—		(1,144	)
Other increases (decreases)		(4	)		1,676		1,672
Total changes		9,782			10,551		20,333
Closing balance		39,668			10,551		50,219

(*) The increase in litigations is mainly made up of ThU.S.$ 24,533 (subsidiaries in Brazil) for civil and labor lawsuits.

(**) The increase in Other Provisions corresponds to the dismantling L1.

Provisions for litigations are related to labor and tax claims whose payment period is uncertain. Other provisions mainly include constitution of provision for the lawsuit of export duties (see Arauco Argentina’s contingent liability set forth in this note).

77

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 19. INTANGIBLE ASSETS

	09-30-2023			12-31-2022
Classes of intangible assets, net	ThU.S.$			ThU.S.$
Intangible assets, net		65,932			73,439
Intangible assets under development (IT programs)		3,037			5,076
Computer software		20,673			22,323
Water rights		5,007			5,185
Customer relationship		20,517			24,015
Other identifiable intangible assets		16,698			16,840
Classes of intangible assets, gross		228,213			226,642
Intangible assets under development (IT programs)		3,037			5,076
Computer software		122,994			119,353
Water rights		5,007			5,185
Customer relationship		74,896			74,860
Other identifiable intangible assets		22,279			22,168
Classes of accumulated amortization and impairment
Total accumulated amortization and impairment		(162,281	)		(153,203	)
Accumulated amortization and impairment, intangible assets		(162,281	)		(153,203	)
Computer software		(102,321	)		(97,030	)
Customer relationship		(54,379	)		(50,845	)
Other identifiable intangible assets		(5,581	)		(5,328	)

Reconciliation of the carrying amount of intangible assets at the beginning and end of each reporting period balances

	09-30-2023
Reconciliation of intangible assets	Intangible assets under development ThU.S.$			Computer software ThU.S.$			Water rights ThU.S.$			Customer relationship ThU.S.$			Others ThU.S.$			Total ThU.S.$
Opening balance		5,076			22,323			5,185			24,015			16,840			73,439
Changes
Additions		1,359			1,609			—			—			108			3,076
Disposals		(409	)		—			(178	)		—			—			(587	)
Amortization		—			(6,569	)		—			(3,514	)		(250	)		(10,333	)
Increase (decrease) in foreign exchange		—			231			—			16			—			247
Other increases (decreases)		(2,989	)		3,079			—			—			—			90
Changes total		(2,039	)		(1,650	)		(178	)		(3,498	)		(142	)		(7,507	)
Closing balance		3,037			20,673			5,007			20,517			16,698			65,932

	12-31-2022
Reconciliation of intangible assets	Intangible assets under development ThU.S.$			Computer software ThU.S.$			Water rights ThU.S.$			Customer relationship ThU.S.$			Others ThU.S.$			Total ThU.S.$
Opening balance		4,881			27,268			5,684			29,218			17,159			84,210
Changes
Additions		1,696			3,758			2,134			—			140			7,728
Disposals		(853	)		—			(2,633	)		—			(108	)		(3,594	)
Amortization		—			(9,398	)		—			(4,969	)		(375	)		(14,742	)
Increase (decrease) in foreign exchange		—			120			—			(234	)		24			(90	)
Other increases (decreases)		(648	)		575			—			—			—			(73	)
Changes total		195			(4,945	)		(499	)		(5,203	)		(319	)		(10,771	)
Closing balance		5,076			22,323			5,185			24,015			16,840			73,439

	Years of useful life (average)
Computer software		5
Customer relationship		15
Brands		7

The amortization of customer relationship and computer software is presented in the interim consolidated statements of profit or loss under the administrative expenses line item.

78

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 20. BIOLOGICAL ASSETS

Biological assets comprise forestry plantations, mainly radiata and taeda pine, and to a lesser extent eucalyptus. The plantations are located in Chile, Argentina, Brazil and Uruguay.

As of September 30, 2023 Arauco had a total surface of 1.7 million hectares of which 970 thousand hectares are used for forestry planting, 505 thousand hectares are native forest, 112 thousand hectares are used for other purposes and 131 thousand hectares not yet planted. Lands corresponding to native forest, lands used for other purposes and lands not yet planted are presented in property, plant & equipment, Forest plantations are presented in Biological Assets.

For the nine-months period ended September 30, 2023, the production volume of logs totaled 14.5 million m3 (15.6 million m3 as of September 30, 2023).

Measurements of fair value of Arauco’s biological assets are classified as Level 3, due to the fact that inputs are not observable. However, this information reflects the assumptions that market participants would use in pricing the asset, including assumptions about risk.

These unobservable inputs were developed using the best information available and includes internal data from Arauco. These unobservable inputs can be adjusted if the available information indicates that other market participants would use different information or there is something specific in Arauco that is not available to other market participants.

The main considerations in determining the fair value of biological assets include the following:

• Arauco uses discounted expected future cash flows of its forest plantations, which are based on a harvest projection date for all existing plantations.

• Current forestry plantations are projected based on a net volume that will not decrease, with a minimum growth equivalent to the current supply demand.

• Future plantations are not considered.

• The harvest of forestry plantations supplies raw materials for all other products that Arauco produces and trades. By directly controlling the development of forests that will be processed, Arauco ensures high quality timber for each of its products.

• Expected cash flows are determined in terms of harvest and expected sale of forestry products, associated with the demand from the Company’s own industrial centers and sales to third parties at market prices. Sales margin of the different products that are harvested in the forest is also considered in the valuation. The changes in the value of the plantations pursuant to the criteria defined above are accounted for in the results for the period, as established in IAS 41. These changes are presented in the interim consolidated statements of profit or loss under the line item other income per function, which as of September 30, 2023 amounted to ThU.S.$ 167,174 (ThU.S.$ 193,969 as of September 30, 2022). The appraisal of biological assets resulted in a greater cost of the lumber sold in comparison to the real incurred cost, which is presented included in the cost of sales which as of September 30, 2023 amounted to ThU.S.$ 257,787 (ThU.S.$ 233,231 as of September 30, 2022).

79

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

• Forestry plantations are harvested according to the needs of Arauco’s production plants.

• The discount rates used are 7.0% in Chile, 8.3% Brazil, 21% in Argentina and 9% in Uruguay.

• It is expected that prices of harvested timber are constant in real terms based on market prices.

• Cost expectations with respect to the lifetime of the forests are constant based on estimated costs included in the projections made by Arauco.

• The average crop age by species and country is:

	Chile		Argentina		Brazil		Uruguay
Pine		24		15		15		—
Eucalyptus		12		10		7		10

The following table sets forth changes in fair value of biological assets considering variations in significant assumptions considered in calculating the fair value of the assets:

		ThU.S.$
Discount rate	0.5		(106,343	)
	-0.5		113,496
Margins (%)	10		420,968
	-10		(420,968	)

The significant unobservable input data used in the measurement of the fair value of biological assets are discount rates and sales margins of the different products that are harvested from the forest. Increases (decreases) in any of these input data considered in isolation would result in a smaller or greater fair value measurement.

The adjustment to fair value of biological assets minus sale costs is recorded in the interim consolidated statements of profit or loss, under the line item other income or other expenses, depending on whether it corresponds to profits or losses.

Forestry plantations classified as current biological assets are those to be harvested and sold within twelve months after the reporting period.

The Company has contracted fire insurance policies for its forestry plantations, which in conjunction with the Company’s resources, allow risks to be minimized.

As of the date of these interim consolidated financial statements, there are no committed disbursements for the acquisition of biological assets.

Detail of biological assets pledged as security

As of September 30, 2023, there were no forestry plantations pledged as security.

80

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Detail of biological assets with restricted ownership

As of the date of these interim consolidated financial statements, there are no biological assets with restricted ownership.

No significant government grants have been received.

Current and non-current biological assets

As of the date of these interim consolidated financial statements, the current and non-current biological assets were as follows:

	09-30-2023		12-31-2022
	ThU.S.$		ThU.S.$
Current		420,244		330,435
Non-current		2,795,531		2,864,935
Total		3,215,775		3,195,370

Reconciliation of carrying amount of biological assets

	09-30-2023
Movement	Current ThU.S.$			Non-current ThU.S.$			Total ThU.S.$
Opening balance		330,435			2,864,935			3,195,370
Changes in real incurred cost		7,274			122,269			129,543
Additions through acquisition		—			304,460			304,460
Sales		(168	)		(3,295	)		(3,463	)
Harvest		(109,624	)		—			(109,624	)
Increases (decreases) in foreign exchange		(12,549	)		13,931			1,382
Loss of forest due to fires		(1,324	)		(62,720	)		(64,044	)
Transfers to non-current assets held for sale		—			832			832
Transfers from non-current to current		130,939			(130,939	)		—
Changes in fair value		82,535			(191,673	)		(109,138	)
Gain (losses) arising from changes in fair value minus sale costs		—			167,174			167,174
Sales		(48	)		(2,828	)		(2,876	)
Harvest		(229,708	)		—			(229,708	)
Loss of forest due to fires		—			(43,740	)		(43,740	)
Transfers to non-current assets held for sale		—			12			12
Transfers from non-current to current		312,291			(312,291	)		—
Total changes		89,809			(69,404	)		20,405
Closing balance		420,244			2,795,531			3,215,775

	12-31-2022
Movement	Current ThU.S.$			Non-current ThU.S.$			Total ThU.S.$
Opening balance		329,586			3,008,897			3,338,483
Changes in real incurred cost		18,600			156,351			174,951
Additions through acquisition		35			293,231			293,266
Sales		(428	)		(9,512	)		(9,940	)
Harvest		(115,373	)		—			(115,373	)
Increases (decreases) in foreign exchange		(2,077	)		14,680			12,603
Loss of forest due to fires		—			(13,346	)		(13,346	)
Transfers to non-current assets held for sale		—			4,938			4,938
Transfers from non-current to current		133,640			(133,640	)		—
Decrease due to loss of control in subsidiary		2,803			—			2,803
Changes in fair value		(17,751	)		(300,313	)		(318,064	)
Gain (losses) arising from changes in fair value minus sale costs		2,345			10,587			12,932
Sales		106			(13,306	)		(13,200	)
Harvest		(320,810	)		—			(320,810	)
Loss of forest due to fires		—			(3,781	)		(3,781	)
Transfers to non-current assets held for sale		—			5,220			5,220
Transfers from non-current to current		299,498			(299,498	)		—
Decrease due to loss of control in subsidiary		1,110			465			1,575
Total changes		849			(143,962	)		(143,113	)
Closing balance		330,435			2,864,935			3,195,370

81

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Regarding the fires that occurred in 2023 in the regions of Maule, Ñuble, Araucanía, Biobío and Los Ríos. Arauco has 47 thousand hectares of productive forest plantations were affected and for which, to date, management has been carried out that has allowed to recover an approximate equivalent to 12 thousand hectares.

As of September 30, 2023, a net loss of insurance compensation of U.S.$ 17 million was recognized for the fires in Chile, reducing the gross value of the biological assets, which represents 3.2% of the value of the forest plantations of Arauco.

NOTE 21. ENVIRONMENTAL MATTERS

Environment Management

For Arauco, sustainability means management strategy. This strategy incorporates values, commitments and standards, that together with the adoption of best practices as well as the use of the latest available technologies, seek to continuously improve the Company’s environmental management. It is the environmental department and each of its specialists that ensure these guidelines are met and are put into practice in everyday company operations.

All Arauco’s production units have certified environmental management systems, which reinforce the Company’s commitment to environmental performance and ensure the traceability of all raw materials used.

Arauco uses several supplies in its productive processes such as wood, chemical products, and water, etc., which in turn produce liquid and gas emissions. As a way to make the Company’s environmental management more efficient, significant progress has been made to reduce consumption and emissions.

Environmental investments have been made related to the control of atmospheric emissions, process improvements, water and waste management, as well as effluent treatment, in order to improve the environmental performance of all Arauco’s business units.

These investments are reflected in the interim consolidated financial statements as property, plant and equipment when they refer to disbursements in major works executed and are reflected in Expenses when they refer to improvements or management not directly associated with investment projects.

Detail information of disbursements related to the environment

As of September 30, 2023 and December 31, 2022 Arauco had made and / or had committed the following disbursements in major environmental project.

82

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

09-30-2023		Disbursements undertaken 2023				Committed Disbursements
		State	Amount	Asset	Asset/expense	Amount	Estimated
Company	Name of project	of project	ThU.S.$	Expense	destination item	ThU.S.$	date
Celulosa Arauco y Constitucion S.A.	Environmental improvement studies	In process	1,781	Assets	Properties, plants and equipments	3,149	2023
Celulosa Arauco y Constitucion S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	8,443	Assets	Properties, plants and equipments	8,730	2023
Celulosa Arauco y Constitucion S.A.	Expansion of solid industrial waste dumpsite for management of these in the future	In process	3,779	Assets	Properties, plants and equipments	14,395	2023
Celulosa Arauco y Constitucion S.A.	Environmental improvement studies	In process	12,558	Expense	Operating costs	3,802	2023
Celulosa Arauco y Constitucion S.A.	Expansion of solid industrial waste dumpsite for management of these in the future	In process	12,379	Expense	Operating costs	1,050	2023
Arauco do Brasil S.A.	Environmental improvement studies	In process	1,016	Assets	Properties, plants and equipments	1,329	2023
Arauco Industria de Paineis S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	4,012	Expense	Operating costs	136	2023
Forestal Arauco S.A.	Environmental improvement studies	In process	1,114	Expense	Operating costs	1,172	2023
Maderas Arauco S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	393	Assets	Properties, plants and equipments	75	2022
Arauco North America, Inc	Investment projects for the control and management of gas emissions from industrial process	In process	2,084	Assets	Properties, plants and equipments	657	2023
Arauco North America, Inc	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	237	Assets	Properties, plants and equipments	42	2022
Arauco North America, Inc	Investment projects for the control and management of gas emissions from industrial process	Finished	284	Assets	Properties, plants and equipments	—	2023
Arauco North America, Inc	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	Finished	1,864	Assets	Properties, plants and equipments	—	2023
		TOTAL	49,944			34,537

12-31-2022		Disbursements undertaken 2022				Committed Disbursements
		State	Amount	Asset	Asset/expense	Amount	Estimated
Company	Name of project	of project	ThU.S.$	Expense	destination item	ThU.S.$	date
Celulosa Arauco y Constitucion S.A.	Environmental improvement studies	In process	6,898	Assets	Property, plant and equipment	2,029	2023
Celulosa Arauco y Constitucion S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	1,540	Assets	Property, plant and equipment	10,677	2023
Celulosa Arauco y Constitucion S.A.	Investment projects for the control and management of gas emissions from industrial process	In process	167	Assets	Property, plant and equipment	687	2023
Celulosa Arauco y Constitucion S.A.	Expansion of solid industrial waste dumpsite for management of these in the future	In process	68	Assets	Property, plant and equipment	632	2023
Celulosa Arauco y Constitucion S.A.	Environmental improvement studies	In process	12,506	Expense	Operating cost	—	2023
Celulosa Arauco y Constitucion S.A.	Expansion of solid industrial waste dumpsite for management of these in the future	In process	13,556	Expense	Operating cost	—	2023
Arauco Argentina S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	119	Assets	Property, plant and equipment	169	2023
Arauco Argentina S.A.	Expansion of solid industrial waste dumpsite for management of these in the future	Finished	427	Assets	Property, plant and equipment	—	2022
Arauco Florestal Arapoti S.A.	Environmental improvement studies	Finished	724	Assets	Property, plant and equipment	—	2022
Arauco Industria de Paineis S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	4,102	Assets	Property, plant and equipment	8	2023
Arauco Industria de Paineis S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	Finished	366	Assets	Property, plant and equipment	—	2022
Forestal Arauco S.A.	Environmental improvement studies	In process	1,648	Expense	Operating cost	124	2023
Maderas Arauco S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	47	Assets	Property, plant and equipment	295	2023
Maderas Arauco S.A.	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	Finished	687	Expense	Operating cost	—	2022
Arauco North America, Inc	Investment projects for the control and management of gas emissions from industrial process	In process	684	Assets	Property, plant and equipment	1,651	2023
Arauco North America, Inc	Investment projects for the control and management of hazardous liquids and water energy optimization of industrial plants	In process	1,369	Assets	Property, plant and equipment	454	2023
		TOTAL	44,908			16,726

83

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 22. NON-CURRENT ASSETS HELD FOR SALE

The following table sets forth information on the main types of non-current assets held for sale:

	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Land		177		307
Forest		—		844
Roads		—		128
Total		177		1,279

As of September 30, 2023 and December 31, 2022, there were no significant impacts on results that must be reported.

84

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 23. FINANCIAL INSTRUMENTS

23.1 Classification

Arauco’s financial instruments as of September 30, 2023, and December 31, 2022, are displayed in the table below. Regarding those instruments valued at an amortized cost, an estimation of their fair value is displayed for informational purposes.

	09-30-2023				12-31-2022
Financial instruments Thousands of dollars	Carrying amount		Fair value		Carrying amount		Fair value
Financial assets at fair value through profit or loss (held for trading)		177,146		177,146		110,208		110,208
Derivative (1)		126		126		144		144
Mutual funds (1)		177,020		177,020		110,064		110,064
Financial assets at amortized cost		1,494,870		1,494,870		1,476,046		1,476,046
Cash and cash equivalents (amortized cost)		479,524		479,524		557,143		557,143
Cash		253,870		253,870		298,577		298,577
Time deposits		225,654		225,654		258,566		258,566
Accounts receivable (net)		978,394		978,394		905,969		905,969
Trade receivables		663,926		663,926		726,972		726,972
Lease receivable		72,332		72,332		28,935		28,935
Sundry debtors		13,968		13,968		8,911		8,911
Other receivables		153,818		153,818		56,973		56,973
Prepayments		74,350		74,350		84,178		84,178
Accounts receivable from related parties		7,532		7,532		7,563		7,563
Other financial assets (2)		29,420		29,420		5,371		5,371
Hedging assets		33,051		33,051		73,156		73,156
Financial liabilities at amortized cost (3)		7,630,361		6,911,617		6,572,325		6,331,528
Bonds issued denominated in U.S. dollars		3,406,626		2,936,324		3,397,376		3,136,318
Bonds issued denominated in U.F. (4)		1,569,186		1,323,194		1,116,083		1,167,251
Bank borrowings in U.S. dollars		835,005		828,583		415,462		408,278
Bank borrowings in other currencies		626,719		630,691		525,215		501,492
Lease liabilities		489,828		489,828		264,224		264,224
Trade and other payables		683,823		683,823		832,954		832,954
Accounts payable to related parties		19,174		19,174		21,011		21,011
Financial liabilities at fair value through profit or loss		64		64		17		17
Hedging liabilities		165,414		165,414		76,669		76,669

(1) Although mutual funds are measured at fair value through profit or loss for purposes of the consolidated statements of financial position mutual funds are classified as “Cash and cash equivalents” due to the are highly liquid short-term investment.

(2) Corresponds to the balance of assets from margin call for current derivatives (collateral).

(3) Financial liabilities measured at amortized cost, other than “Trade and other payables”, “Accounts payable to related parties” and derivatives are presented in the consolidated statements of financial position in the line item “Other financial liabilities” as current and non-current based on their maturity.

(4) The Unidad de Fomento (“U.F.”) is a unit of account that is linked to, and is adjusted daily to reflect changes in the Chilean consumer price index.

85

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.2 Fair value hierarchy of financial assets and liabilities

The assets and liabilities measured at fair value in the consolidated statements of financial position as of September 30, 2023 and December 31, 2022, have been measured based on the valuation methodologies provided in IFRS 13. The methodologies applied for each financial instrument are classified according to their hierarchy as follows:

• Level 1: Securities or quoted prices in active markets for identical assets and liabilities

• Level 2: Inputs other than quoted prices included within Level 1 that are observable for the assets or liabilities, either directly (i.e. as prices) or indirectly (i.e. derived from prices); and

• Level 3: Inputs for the assets or liabilities that are not based on observable market data (unobservable inputs).

Fair value	09-30-2023 ThU.S.$		Level 1 ThU.S.$		Level 2 ThU.S.$		Level 3 ThU.S.$
Financial assets at fair value through profit or loss (held for trading)
Derivatives		126		—		126		—
Mutual Funds		177,020		177,020		—		—
Hedging assets		33,051		—		33,051		—
Financial liabilities at fair value through profit or loss		64		—		64		—
Hedging liabilities		165,414		—		165,414		—

Fair value	12-31-2022 ThU.S.$		Level 1 ThU.S.$		Level 2 ThU.S.$		Level 3 ThU.S.$
Financial assets at fair value through profit or loss (held for trading)
Derivatives		144		—		144		—
Mutual Funds		110,064		110,064		—		—
Hedging assets		73,156		—		73,156		—
Financial liabilities at fair value through profit or loss		17		—		17		—
Hedging liabilities		76,669		—		76,669		—

At the closing date of these interim consolidated financial statements, there have been no transfers between the different hierarchy levels.

23.3 Explanation of the valuation of financial instruments.

Cash and cash equivalent and accounts receivable

The carrying amount of accounts receivable, cash and cash equivalents (including mutual funds), and other financial assets and liabilities approximate their fair value due to the short-term nature of such instruments.

Derivative financial instruments

Arauco’s current derivatives are valued under the cash flow discount method. These flows are discounted at the rate applicable according to the transaction’s and counterparties’ risk, using an internal methodology based on the information obtained from Bloomberg.

86

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Given that our cross-currency swaps correspond to future flows in UF, U.S. dollars and Euros, Arauco calculates the current value of such flows by using the UF zero coupon curve, dollar zero coupon and the Euro zero coupon.

The fair value of the interest rate swap contracts is calculated by reference to the rate differential between the agreed upon rate and the market rate as of the end date of these interim consolidated financial statements.

The fair value of the currency forward contracts is calculated by reference to the current forward exchange rates of contracts with similar maturity profiles.

The fair value of zero cost collar contracts is calculated by reference to the price differential between the agreed price range and the market price of the hedge’s object.

The counterparty risk uses the Z-Spread obtained from the curve of the bonds issued by counterparties, and they are deducted from each flow as appropriate.

Financial liabilities

The fair value of bonds issued was determined with reference to quoted market prices as they have standard terms and conditions.

The fair value of bank borrowings was determined based on discounted cash flow analysis applying the corresponding discount yield curves to the remaining term to maturity.

Disclosures of the fair value of financial liabilities at amortized cost are determined via the use of discounted cash flows, calculated over variables of the observable markets as of the date of informing the interim consolidated financial statements, and correspond to Level 2 of the fair value hierarchy.

87

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The following table sets forth a reconciliation between the financial liabilities and the consolidated statements of financial position as of September 30, 2023 and December 31, 2022:

Thousands of dollars	09-30-2023
	Up to 90 days		From 91 days to 1 year		Other current financial liabilities, Total		From 1 year to 3 years		From 3 years to 5 years		More than 5 years		Other non-current financial liabilities, Total		Total
Bonds obligations		81,293		532,841		614,134		86,100		779,798		3,495,780		4,361,678		4,975,812
Bank borrowings		441,148		252,064		693,212		502,431		166,594		99,487		768,512		1,461,724
Swap and Forward		15,774		—		15,774		149,704		—		—		149,704		165,478
Total other financial liabilities (a)		538,215		784,905		1,323,120		738,235		946,392		3,595,267		5,279,894		6,603,014

Thousands of dollars	09-30-2023
	Up to 90 days		From 91 days to 1 year		Total Current		From 1 year to 3 years		From 3 years to 5 years		More than 5 years		Total non-current		Total
Lease liabilities		13,142		32,942		46,084		88,211		60,624		294,909		443,744		489,828
Total lease liabilities (b)		13,142		32,942		46,084		88,211		60,624		294,909		443,744		489,828

Thousands of dollars	09-30-2023
	Up to 90 days		From 91 days to 1 year		Total Current		From 1 year to 3 years		From 3 years to 5 years		More than 5 years		Total non-current		Total
Trade and other payables		656,889		6,974		663,863		19,960		—		—		19,960		683,823
Accounts payable to related companies		12,443		—		12,443		3,283		—		3,448		6,731		19,174
Total accounts payable (c)		669,332		6,974		676,306		23,243		—		3,448		26,691		702,997
Total financial liabilities (a) + (b) + (c)		1,220,689		824,821		2,045,510		849,689		1,007,016		3,893,624		5,750,329		7,795,839

Thousands of dollars	12-31-2022
	Up to 90 days		From 91 days to 1 year		Other current financial liabilities, Total		From 1 year to 3 years		From 3 years to 5 years		More than 5 years		Other non-current financial liabilities, Total		Total
Bonds obligations		29,114		66,436		95,550		585,518		782,344		3,050,047		4,417,909		4,513,459
Bank borrowings		109,889		167,905		277,794		368,353		164,873		129,657		662,883		940,677
Swap and Forward		2,107		—		2,107		74,579		—		—		74,579		76,686
Total other financial liabilities (a)		141,110		234,341		375,451		1,028,450		947,217		3,179,704		5,155,371		5,530,822

Thousands of dollars	12-31-2022
	Up to 90 days		From 91 days to 1 year		Total Current		From 1 year to 3 years		From 3 years to 5 years		More than 5 years		Total non-current		Total
Lease liabilities		11,339		25,445		36,784		45,904		38,906		142,630		227,440		264,224
Total lease liabilities (b)		11,339		25,445		36,784		45,904		38,906		142,630		227,440		264,224

Thousands of dollars	12-31-2022
	Up to 90 days		From 91 days to 1 year		Total Current		From 1 year to 3 years		From 3 years to 5 years		More than 5 years		Total non-current		Total
Trade and other payables		795,533		17,305		812,838		2,462		—		17,654		20,116		832,954
Accounts payable to related companies		14,280		—		14,280		3,283		—		3,448		6,731		21,011
Total accounts payable (c)		809,813		17,305		827,118		5,745		—		21,102		26,847		853,965
Total financial liabilities (a) + (b) + (c)		962,262		277,091		1,239,353		1,080,099		986,123		3,343,436		5,409,658		6,649,011

88

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.4 Derivative instruments

Hedging instruments recorded as of September 30, 2023 are cash flow hedges. Arauco uses derivatives for hedging purposes, such as cross currency swaps, currency and commodity forwards, interest rate swaps, and options. Depending on the fair value of each instrument, the position could be either an asset or a liability, and they are listed in the interim consolidated statements of financial position under other non-current financial assets or other non-current financial liabilities, respectively. The effects for the period are presented in interim consolidated statement of changes in equity as other comprehensive income or the interim consolidated statements of comprehensive income as finance income or finance costs, net of differences in exchange rate of the hedged items and the deferred tax.

A summary of the derivative financial instruments included in the consolidated statements of financial position as of September 30, 2023 and December 31, 2022, is presented below:

Financial instruments	09-30-2023 Fair value ThU.S.$			12-31-2022 Fair value ThU.S.$
Financial assets at fair value through profit or loss		126			144
Derivatives (1)		126			144
Forward		—			—
Hedging assets		33,051			73,156
Derivatives (1)		13,003			17,629
Cross Currency Swaps (2)		20,048			55,527
Financial liabilities at fair value through profit or loss		(64	)		(17	)
Derivatives (1)		(4	)		(17	)
Forward		(60	)		—
Hedging liabilities		(165,414	)		(76,669	)
Derivatives (1)		(316	)		(650	)
Cross currency swaps (2)		(165,098	)		(76,019	)

(1) Includes HFO swap, zero cost collar, forward and IRS from Chile, USA, Argentina and Uruguay tables.

(2) Includes cross currency swaps from Chile.

89

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.4.1. Chile

In order to cover the exposure to variation in cash flows associated with fluctuations in exchange rates, interest rates or commodity prices, Arauco Chile has the following derivatives as of September 30, 2023 and December 31, 2022:

Cross currency swaps

Cross currency swaps to cover the exposure to the exchange rate risk generated from bonds denominated in U.F.

Bond	Institution	Amount U.S.$		Amount U.F.		Starting date		Ending date		09-30-2023 fair value ThU.S.$			12-31-2022 fair value ThU.S.$
F	Scotiabank		24,453,184		636,364		10-30-2014		04-30-2023		—			1,625
F	Scotiabank		24,422,642		636,364		10-30-2014		04-30-2023		—			1,673
F	Santander		24,167,222		636,364		10-30-2014		04-30-2023		—			1,905
F	BCI		22,750,014		590,909		10-30-2021		10-30-2029		1,758			2,692
F	BCI		23,940,993		636,364		10-30-2014		04-30-2023		—			2,154
F	Scotiabank		22,777,334		590,909		10-30-2021		10-30-2029		2,074			3,212
F	Banco de Chile		22,440,993		590,909		04-30-2019		10-30-2029		1,282			2,104
F	BCI		22,678,168		590,909		04-30-2023		10-30-2029		1,208			—
F	BCI		22,706,528		590,909		04-30-2023		10-30-2029		1,186			—
F	BCI		22,230,921		590,909		04-30-2023		10-30-2029		1,574			—
F	BCI		22,440,992		590,909		04-30-2023		10-30-2029		1,397			—
P	BCI		33,250,022		863,636		11-15-2021		11-15-2032		2,892			4,709
P	BCI		33,247,217		863,636		11-15-2021		11-15-2032		3,799			5,695
P	Scotiabank		36,629,274		863,636		11-15-2013		11-15-2023		(1,484	)		(1,025	)
P	Santander		36,059,158		863,636		11-15-2013		11-15-2023		(889	)		(448	)
P	Deutsche		36,059,158		863,636		11-15-2013		11-15-2023		(1,012	)		(401	)
R	Santander		128,611,183		3,000,000		10-01-2014		04-01-2024		(7,201	)		(5,117	)
R	JP Morgan		43,185,224		1,000,000		10-01-2014		04-01-2024		(2,547	)		(1,725	)
R	Itau		43,277,070		1,000,000		10-01-2014		04-01-2024		(2,384	)		(1,835	)
S	Santander		201,340,031		5,000,000		11-15-2016		11-15-2026		2,878			10,004
W	Goldman Sachs		40,521,750		1,000,000		10-10-2018		10-10-2028		(1,953	)		(167	)
W	Scotiabank		40,537,926		1,000,000		10-10-2018		10-10-2028		(1,986	)		(148	)
W	Goldman Sachs		40,066,555		1,000,000		10-10-2018		10-10-2028		(1,421	)		369
X	Santander		118,400,504		3,000,000		10-10-2018		10-10-2038		(12,700	)		10,457
X	Santander		97,971,786		2,500,000		10-10-2018		10-10-2038		(10,342	)		8,928
Y	JP Morgan		89,387,460		2,000,000		04-10-2023		04-10-2032		(12,316	)		—
Z	Santander		90,274,363		2,000,000		04-10-2023		04-10-2032		(13,128	)		—
Z	Banco de Chile		44,572,044		1,000,000		04-10-2023		04-10-2032		(5,493	)		—
Z	JP Morgan		44,572,044		1,000,000		04-10-2023		04-10-2032		(5,743	)		—
Z	JP Morgan		44,559,642		1,000,000		04-10-2023		04-10-2032		(5,410	)		—
AB	BCI		43,724,036		1,000,000		05-15-2023		05-15-2033		(4,619	)		—
AB	BCI		43,709,927		1,000,000		05-15-2023		05-15-2033		(4,246	)		—
AB	BCI		43,762,973		1,000,000		05-15-2023		05-15-2033		(4,392	)		—
AB	Banco de Chile		43,601,403		1,000,000		05-15-2023		05-15-2033		(4,022	)		—
AB	Itau		43,654,189		1,000,000		05-15-2023		05-15-2033		(4,113	)		—
											(87,353	)		44,661

Cross currency swaps contracts to cover the exposure to the risk of the exchange rate for bank contracts in Euro.

Institution	Amount U.S.$		Amount EUR		Starting date		Ending date		09-30-2023 fair value ThU.S.$			12-31-2022 fair value ThU.S.$
Santander		90,747,647		76,470,588		06-15-2021		12-15-2029		(11,742	)		(13,279	)
Banco de Chile		45,373,824		38,235,294		06-15-2021		12-15-2029		(5,492	)		(6,491	)
MUFG		90,747,647		76,470,588		06-15-2021		12-15-2029		(11,464	)		(12,898	)
JP Morgan		181,495,294		152,941,176		06-15-2021		12-15-2029		(23,261	)		(26,033	)
HSBC		45,373,824		38,235,294		06-15-2021		12-15-2029		(5,738	)		(6,452	)
										(57,697	)		(65,153	)

90

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.4.2. Uruguay

Forward

As of September 30, 2023 and December 31, 2022, Arauco through its subsidiaries as a joint operation (50%) in Uruguay maintained the following forward contracts in force and effect for the purposes of ensuring an exchange rate for sale of dollars:

Exchange rate	Institution	09-30-2023 notional ThU.S.$		09-30-2023 fair value ThU.S.$			12-31-2022 notional ThU.S.$		12-31-2022 fair value ThU.S.$
UYUUSD	HSBC - Uruguay		5,095		304			13,735		1,138
UYUUSD	Citibank U.K.		2,600		84			—		—
UYUUSD	Itaú - Uruguay		16,485		757			8,480		451
UYUUSD	Banco de la República Oriental de Uruguay		3,685		309			3,805		166
EURUSD	Itaú - Uruguay		299		9			859		33
EURUSD	Santander - Uruguay		1,329		—			2,416		3
EURUSD	Santander - Uruguay		—		(6	)		—		(1	)
					1,457					1,790

Commodity swap

Arauco Uruguay’s profits and through its subsidiaries as a joint operation (50%), also face exposure to the price variation of certain fuels, as occurs with Fuel Oil N°6, which is used during the pulp manufacturing process. In order to minimize this risk, the volatility of future flows associated to the purchase of Fuel Oil No. 6 through forwards of this commodity. The agreements that are in force and effect as of September 30, 2023 and December 31, 2022, are detailed below:

Commodity	Institution	09-30-2023 notional ThU.S.$		09-30-2023 fair value ThU.S.$			12-31-2022 notional ThU.S.$		12-31-2022 fair value ThU.S.$
Fuel Oil N°6	JP Morgan - N.A.		3,420		196			7,367		677
Fuel Oil N°6	DNB Bank ASA		8,934		528			7,366		62
Fuel Oil N°6	BNP Paribas		3,533		172			—		—
Fuel Oil N°6	JP Morgan - N.A.		—		(85	)		—		(252	)
Fuel Oil N°6	DNB Bank ASA		—		(134	)		—		(397	)
Fuel Oil N°6	BNP Paribas		—		(95	)		—		—
					582					90

Interest rate swap

In addition, Arauco through its subsidiaries as a joint operation (50%) in Uruguay, does not maintains any Interest Rate Swap in force and effect, a derivative instrument which purpose is to set the interest rate of a variable rate debt in the same currency (USD). The valuation off this instrument as of September 30, 2023 and December 31, 2022 is shown below:

Exchange rate	Institution	Notional ThU.S.$		09-30-2023 fair value ThU.S.$		12-31-2022 fair value ThU.S.$
USD	DNB Bank ASA		4,220		—		110
					—		110

Note: The values and amounts indicated in the section 23.4.2 correspond to 50% of the total Uruguayan companies amounts, showing the participation that Arauco has in this companies.

91

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.4.3. United States

Interest rate swap

Arauco through its subsidiary in United States maintains an Interest Rate Swap with the purpose of setting the interest rate of a variable rate debt in the same currency (USD). The instrument was settled on September 2020 and the valuation off this instrument as of September 30, 2023 and December 31, 2022 is shown below:

Institution	Amount ThU.S.$		Starting date		Ending date		09-30-2023 fair value ThU.S.$		12-31-2022 fair value ThU.S.$
JP Morgan - N.A.		75,000,000		04-28-2020		04-28-2024		3,590		5,062
Goldman Sachs N.A.		75,000,000		04-28-2020		04-28-2024		3,587		5,004
JP Morgan - N.A.		75,000,000		04-28-2020		04-28-2024		3,593		5,067
							10,770		15,133

23.4.4. Argentina

Forward

As of September 30, 2023 and December 31, 2022, Arauco through its subsidiary in Argentina maintained the following forward contracts in force and effect for the purposes of ensuring an exchange rate of dollars:

Exchange rate	Institution	Amount ThU.S.$		Starting date		Ending date		09-30-2023 fair value ThU.S.$			12-31-2022 fair value ThU.S.$
ARSUSD	BBVA - Argentina		6,000		12-15-2022		01-31-2023		—			(17	)
ARSUSD	HSBC		6,000		09-28-2023		10-31-2023		(60	)		—
									(60	)		(17	)

23.5 Cash equivalent, loans and receivables

The financial assets measured at amortized cost using the effective interest method and tested for impairment are: cash and cash equivalent, time deposits, repurchase agreements, trade and other current/non-current receivables (with third parties and from related parties).

Loans and receivables are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. In the consolidated statements of financial position, they are included in line items “Cash and cash equivalents” (certain components of cash and cash equivalents), “Trade and other current/non-current receivables” and “Accounts receivable from related parties”.

92

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

As of September 30, 2023 and December 31, 2022, there are provisions for impairment for ThU.S.$8,998 and ThU.S.$ 7,960, respectively.

	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Financial assets at amortized cost		1,494,870		1,476,046
Cash and cash equivalents (Mutual Funds not included)		479,524		557,143
Cash		253,870		298,577
Time deposits		225,654		258,566
Accounts receivables (net)		985,926		913,532
Trade receivables		663,926		726,972
Lease receivable		72,332		28,935
Sundry debtors		13,968		8,911
Other receivables		153,818		56,973
Prepayments		74,350		84,178
Accounts receivable from related parties		7,532		7,563
Other financial assets		29,420		5,371

23.5.1. Cash and cash equivalents

Includes cash on hand, bank checking account balances and time deposits and other short-term highly liquid investments with an original maturity of three months or less. They are short-term, highly liquid investments that are readily convertible to known amounts of cash, and which are subject to an insignificant risk of changes in value.

The composition of cash and cash equivalents (including the balance of mutual funds displayed in this note as valuation, instruments at fair value with profit or loss) at September 30, 2023 and December 31, 2022, classified by currency is as follows:

	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Cash and cash equivalents		656,544		667,207
U.S. dollars		309,380		395,254
Euro		9,563		4,884
Real		78,920		103,829
Argentine pesos		105,348		97,859
Mexican pesos		19,421		28,564
Other currencies		5,277		26,793
Chilean pesos		128,635		10,024

23.5.2 Time deposits and repurchase agreements: The investment objective of time deposits and repurchase agreements is to maximize in the short-term the amounts of cash surpluses. These instruments are authorized by Arauco’s Investment Policy, which allows investing in fixed income securities. These instruments have a maturity of less than three months from the date of acquisition.

23.5.3 Trade and other receivables: These represent enforceable rights for Arauco resulting from the normal course of the business.

23.5.4 Sundry debtors: These correspond to receivables from sales, services or loans that are not considered within the normal course of the business.

The allowance for doubtful accounts is presented as a deduction of trade and other receivables. The provision for doubtful accounts is established based on an analysis of the age of the portfolio and considering the insurance coverage on accounts receivable. Other conditions are assessed for example when there is objective evidence that Arauco will not receive payments under the original sale terms and when the customer is a party to a bankruptcy court agreement or cessation of payments, and is written-off when Arauco has exhausted all levels of recovery of the receivable in a reasonable time.

93

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.5.5 Accounts receivable from related parties: Represent enforceable rights for Arauco resulting from the normal course of business, calling normal to the line of business, activity or purpose of exploitation and financing, and which Arauco owns a non-controlling ownership of the counterparty.

The following table sets forth trade and other current/non-current receivables classified by currencies as of September 30, 2023 and December 31, 2022:

	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Trade and other current receivables		879,848		873,295
U.S. dollars		532,761		614,204
Euros		25,517		36,425
Real		74,476		50,646
Argentine pesos		34,980		33,287
Mexican pesos		36,657		33,089
Other currencies		1,290		1,972
Chilean pesos		160,267		97,616
U.F.		13,900		6,056
Accounts receivable from related parties, current		7,532		7,563
Other currencies		3,903		4,713
Chilean pesos		3,629		2,850
Trade and other non-current receivables		98,546		32,674
U.S. dollars		37,640		5,880
Chilean pesos		2,923		3,434
U.F.		57,983		23,360

23.6 Financial liabilities

Arauco’s financial liabilities to the date of these interim consolidated financial statements are as follows:

Financial liabilities	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Total financial liabilities		7,795,839		6,649,011
Financial liabilities at fair value through profit or loss		64		17
Hedging liabilities		165,414		76,669
Financial liabilities at amortized cost		7,630,361		6,572,325

The following table sets forth the current portion of the non-current bank borrowings and debt issued as of September 30, 2023 and December 31, 2022.

	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
Bank borrowings - current portion		317,264		139,252
Bonds issued - current portion		111,391		95,550
Total		428,655		234,802

94

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.7 Financial liabilities measured at amortized cost

Financial liabilities correspond to non-derivative financial instruments with contractual cash-flow payments that can be either fixed or variable.    

Also, this category includes those non-derivative financial liabilities for services or goods delivered to Arauco at the end of each reporting period that have not yet been paid. These amounts are not insured and are generally paid within thirty days after being recognized.

At the end of these interim consolidated financial statements, Arauco includes in this category bank borrowings, bonds issued denominated in U.S. dollars and in U.F., lease liabilities, and trade and other payables.

	Currency	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$		09-30-2023 ThU.S.$		12-31-2022 ThU.S.$
		Amortized cost				Fair value
Total financial liabilities			7,630,361		6,572,325		6,911,617		6,331,528
Bonds issued	U.S. dollar		3,406,626		3,397,376		2,936,324		3,136,318
Bonds issued	U.F.		1,569,186		1,116,083		1,323,194		1,167,251
Bank borrowings	U.S. dollar		835,005		415,462		828,583		408,278
Bank borrowings	Euro		430,172		455,325		630,691		501,492
Bank borrowings	Other currencies		196,547		69,890		—		—
Lease liabilities	U.F.		15,302		16,936		15,302		16,936
Lease liabilities	Chilean pesos		35,997		11,265		35,997		11,265
Lease liabilities	Real		298,667		101,269		298,667		101,269
Lease liabilities	Mexican pesos		4,556		3,238		4,556		3,238
Lease liabilities	U.S. dollar		134,942		131,292		134,942		131,292
Lease liabilities	Euro		170		201		170		201
Lease liabilities	Other currencies		194		23		194		23
Trade and other payables	U.S. dollar		161,610		234,226		161,610		234,226
Trade and other payables	Euro		24,726		23,277		24,726		23,277
Trade and other payables	Real		88,685		85,450		88,685		85,450
Trade and other payables	Argentine pesos		51,280		54,078		51,280		54,078
Trade and other payables	Mexican pesos		16,156		16,791		16,156		16,791
Trade and other payables	Other currencies		12,716		10,476		12,716		10,476
Trade and other payables	Chilean pesos		288,554		369,300		288,554		369,300
Trade and other payables	U.F.		40,096		39,356		40,096		39,356
Accounts payable to related parties	U.S. dollar		657		202		657		202
Accounts payable to related parties	Chilean pesos		18,517		20,809		18,517		20,809

The financial liabilities at amortized cost presented in the interim consolidated statements of financial position as of September 30, 2023 and December 31, 2022 are as follows:

	09-30-2023 ThU.S.$
	Current		Non-current		Total
Other financial liabilities		1,307,346		5,130,190		6,437,536
Lease liabilities		46,084		443,744		489,828
Trade and other payables		663,863		19,960		683,823
Accounts payable to related parties		12,443		6,731		19,174
Total financial liabilities at amortized cost		2,029,736		5,600,625		7,630,361

	12-31-2022 ThU.S.$
	Current		Non-current		Total
Other financial liabilities		373,344		5,080,792		5,454,136
Lease liabilities		36,784		227,440		264,224
Trade and other payables		812,838		20,116		832,954
Accounts payable to related parties		14,280		6,731		21,011
Total financial liabilities at amortized cost		1,237,246		5,335,079		6,572,325

95

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.8 Cash flow hedges reserve reconciliation

The following table sets forth the reconciliation balances of cash flow hedges presented in the interim consolidated statements of comprehensive income:

	January - September						July - September
	2023 ThU.S.$			2022 ThU.S.$			2023 ThU.S.$			2022 ThU.S.$
Opening balance		(10,113	)		(136,859	)		(31,809	)		(26,380	)
Gains (losses) on cash flow hedges, before tax		(53,404	)		129,441			(23,706	)		(27,366	)
Recycle of cash flow hedges to profit or loss		209			(5,080	)		—			—
Income tax relating to cash flow hedges of other comprehensive income		17,377			(32,683	)		9,585			8,565
Closing balance		(45,931	)		(45,181	)		(45,930	)		(45,181	)

23.9 Capital disclosures

23.9.1 Information on objectives, policies and processes applied by the company regarding capital management

Arauco’s policies on capital management have the objective of:

a) Ensuring business continuity and normal operations in the long-term;

b) Ensuring funding for new investments to achieve sustainable growth over time;

c) Keeping adequate capital structure considering all economic cycles that impact the business and the nature of the industry; and

d) Maximizing the Company’s value and providing an adequate return to shareholders.

23.9.2 Qualitative information on objectives, policies and processes applied by the company regarding capital management

Arauco determines and manages its capital structure based on its carrying amount of equity plus its financial debt (bank borrowings and bonds issued).

23.9.3 Quantitative information on capital management

The following table sets forth the financial covenants that the Company has to comply with as part of the terms of certain of its obligations:

Instrument	09-30-2023 ThU.S.$		12-31-2022 ThU.S.$		Interest coverage >= 2,0x	Debt level (1) <= 1,2x
Domestic bonds (Chile)		1,569,186		1,116,083	N/R	ü
Syndicate borrowing - Grayling		231,684		242,483	ü	ü
Syndicate ECA - MAPA		430,172		455,325	ü	ü

N/R: Not required for the financial obligation.

(1) Debt to equity ratio (financial debt divided by equity plus non-controlling interests).

As of September 30, 2023 and December 31, 2022, Arauco has complied with all of its financial covenants.

The following table sets forth the credit ratings of our debt instruments as of September 30, 2023, are as follows:

Instrument	Standard & Poor’s	Fitch Ratings	Moody’s	Feller Rate
Local bonds	—	AA	—	AA
Foreign bonds	BBB-	BBB	Baa3	—

96

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Capitalization requirements are established based on the Company’s financial needs and on maintaining an adequate liquidity level and complying with financial covenants established in current debt arrangements. The Company manages its capital structure and makes adjustments based on the prevailing economic conditions in order to mitigate the risks associated with adverse market conditions and based on opportunities that may arise to improve the Company’s level of liquidity.

The capitalization of Arauco as of September 30, 2023 and December 31, 2022 is as follows:

	09-30-2023		12-31-2022
	ThU.S.$		ThU.S.$
Equity		7,915,149		8,259,984
Bank borrowings		1,461,724		940,677
Lease liabilities		489,828		264,224
Bonds issued		4,975,812		4,513,459
Capitalization		14,842,513		13,978,344

23.10 Risk management

Arauco’s financial instruments are exposed to various financial risks: credit risk, liquidity risk and market risk (including exchange rate risks, interest rate risks and price risks). Arauco’s overall risk management program focuses on uncertainty in financial markets and aims to minimize potential adverse effects on Arauco’s financial profitability.

Arauco’s financial risk management is overseen by the Corporate Finance Department. This department identifies, assesses and hedges financial risks in close collaboration with Arauco’s operational units. The company is not actively involved in trading its financial assets for speculative purposes.

23.10.1 Type of risk: Credit risk

Description

Credit risk refers to financial uncertainty at different periods of time relating to the fulfillment of obligations with counterparties, at the time of exercising the contract rights to receive cash or other financial assets on behalf of Arauco.    

Explanation of credit risk exposure and how this risk arises

Arauco’s exposure to credit risk is directly related to each of its customer’s individual abilities to fulfill their contractual commitments, reflected in trade receivables.

Accounts exposed to credit risk are trade receivables, financial lease debtors and other debtors.

Arauco does not have a securitized portfolio.

97

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

	09-30-2023		12-31-2022
	ThU.S.$		ThU.S.$
Current receivables
Trade receivables		663,890		726,936
Lease receivable		14,041		5,067
Sundry debtors		9,866		4,451
Other receivables		127,212		54,525
Prepayments		64,839		82,316
Net subtotal		879,848		873,295
Trade receivables		669,070		731,445
Lease receivable		14,041		5,067
Sundry debtors		10,760		4,866
Other receivables		128,279		55,687
Prepayments		64,839		82,316
Gross subtotal		886,989		879,381
Provision for doubtful trade receivables		5,180		4,509
Provision for doubtful lease receivable		—		—
Provision for doubtful sundry debtors		894		415
Provision for doubtful other receivables		1,067		1,162
Subtotal bad debt		7,141		6,086
Non-current receivables
Trade receivables		36		36
Lease receivable		58,291		23,868
Sundry debtors		4,102		4,460
Other receivables		26,606		2,448
Prepayments		9,511		1,862
Net subtotal		98,546		32,674
Trade receivables		1,893		1,910
Lease receivable		58,291		23,868
Sundry debtors		4,102		4,460
Other receivables		26,606		2,448
Prepayments		9,511		1,862
Gross subtotal		100,403		34,548
Provision for doubtful trade receivables		1,857		1,874
Provision for doubtful lease receivable		—		—
Provision for doubtful sundry debtors		—		—
Provision for doubtful other receivables		—		—
Subtotal bad debt		1,857		1,874

Explanation of risk management objectives, policies and processes, and measurement methods

The Credit and Collections Sub-Division, dependent from the Treasury Department, is the area entrusted with minimizing the credit risk of the accounts receivable, supervising the delinquency of the accounts. The regulations and procedures applicable for the control and administration of the Arauco Group can be found in the Corporate Credit Policy.

As of September 30, 2023, Arauco’s balance for commercial debtors was ThU.S.$ 670,963 of which, according to the agreed sales conditions, 56.93% corresponded to sales on credit (open account), 40.92% to sales with letters of credit and 2.15% to other types of sales. The client with the largest Open Account debt represented 1.88% of the total accounts receivable as of that date.

98

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Below we provide detail regarding accounts receivable, classified in tranches:

September 30, 2023

Age of trade receivables

Days	Non- past due			1 to 30			31 to 60			61 to 90			91 to 120			121 to 150			151 to 180			181 to 210			211 to 250			More than 250			Total
N° debtor		1,711			969			45			15			17			11			9			8			7			72			2,864
ThU.S.$		635,835			26,611			1,544			292			91			93			67			31			142			6,257			670,963
%		94.76	%		3.97	%		0.23	%		0.04	%		0.01	%		0.01	%		0.01	%		0.00	%		0.02	%		0.93	%		100	%

December 31, 2022

Age of trade receivables

Days	Non-past due			1 to 30			31 to 60			61 to 90			91 to 120			121 to 150			151 to 180			181 to 210			211 to 250			More than 250			Total
N° debtor		1,500			689			69			43			37			25			18			27			16			62			2,486
ThU.S.$		700,691			23,995			1,941			474			352			133			87			94			67			5,521			733,355
%		95.56	%		3.27	%		0.26	%		0.06	%		0.05	%		0.02	%		0.01	%		0.01	%		0.01	%		0.75	%		100	%

Arauco applies the simplified approach regarding the expected losses from commercial debtors, which allows for the use of an estimate of expected credit losses over the instrument’s lifespan for all commercial accounts receivable. In order to establish this estimate, the commercial debtors have been grouped in relation to the corresponding risks for sales conditions as well as for tranches, including clients that are up-to-date or in default.

September 30, 2023:

Days	Non- past due			1 to 30			31 to 60			61 to 90			91 to 120			121 to 150			151 to 180			181 to 210			211 to 250			More than 250			Total
Letters of credit		274,109			466			—			—			—			—			—			—			—			—			274,575
Loss allowance provision		—			—			—			—			—			—			—			—			—			—			—
Expected loss rate		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%
Credit line		352,297			23,892			1,506			288			91			93			67			27			142			3,573			381,976
Loss allowance provision		1,545			—			49			29			10			9			7			27			142			2,506			4,324
Expected loss rate		0.44	%		0.00	%		3.25	%		10.07	%		10.99	%		9.68	%		10.45	%		100.00	%		100.00	%		70.14	%
Others		9,429			2,253			38			4			—			—			—			4			—			2,684			14,412
Loss allowance provision		25			—			—			—			—			—			—			4			—			2,684			2,713
Expected loss rate		0.27	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		100.00	%		0.00	%		100.0	%
Total trade receivables (ThU.S.$)		635,835			26,611			1,544			292			91			93			67			31			142			6,257			670,963
Total allowance for doubtful accounts (ThU.S.$)		1,570			—			49			29			10			9			7			31			142			5,190			7,037

December 31, 2022:

Days	Non- past due			1 to 30			31 to 60			61 to 90			91 to 120			121 to 150			151 to 180			181 to 210			211 to 250			More than 250			Total
Letters of credit		335,897			1,080			10			—			—			—			—			—			—			—			336,987
Loss allowance provision		—			—			—			—			—			—			—			—			—			—			—
Expected loss rate		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%
Credit line		363,423			22,175			1,791			300			299			100			87			93			67			3,505			391,840
Loss allowance provision		1,545			—			59			34			38			10			9			93			41			2,487			4,316
Expected loss rate		0.43	%		0.00	%		3.27	%		11.22	%		12.74	%		9.52	%		9.82	%		99.08	%		60.88	%		70.95	%
Others		1,371			740			140			174			53			33			—			1			—			2,016			4,528
Loss allowance provision		—			—			1			17			31			19			—			1			—			2,000			2,069
Expected loss rate		0.00	%		0.00	%		0.85	%		9.94	%		57.52	%		55.92	%		0.00	%		96.35	%		0.00	%		99.25	%
Total trade receivables (ThU.S.$)		700,691			23,995			1,941			474			352			133			87			94			67			5,521			733,355
Total allowance for doubtful accounts (ThU.S.$)		1,545			—			60			51			69			29			9			94			41			4,487			6,385

Arauco does not conduct rescheduling or renegotiations with its clients that imply an amendment to the maturity of the invoices and, should it be necessary, any debt renegotiation with a client shall be analyzed on a case-by-case basis and subjected to the approval of the Corporate Finance Division.

99

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Regarding the loss allowance for trade receivables and others, below we provide detail for the movements as of September 30, 2023 and December 31, 2022:

	09-30-2023			12-30-2022
	ThU.S.$			ThU.S.$
Opening loss allowance as at January 1		7,960			8,792
Increase in loan loss allowance recognized in profit or loss during the year		1,621			1,097
Receivables written off during the year as uncollectible		—			(321	)
Unused amount reversed		(583	)		(1,608	)
Closing balance		8,998			7,960

Currently there is a policy for provisions for doubtful accounts receivable under IFRS for all the Arauco group companies.

Explanation regarding the sales risk with letters of credit

The sales with letters of credit mainly occur in markets in Asia and the Middle East. Periodically, a credit assessment is conducted regarding the banks that issue the letters of credit with the purpose of obtaining their score over the basis of risk-qualification ratings, country-specific risk and financial statements. The decision of approving the issuing bank or asking for confirmation of the letter of credit is made in consideration to this assessment.

Explanation of the sales risk with credit line

Sales on credit are subject to the credit limit for each customer. The approval or rejection of a credit limit for all term sales is conducted by the Corporate Credit Sub-Division, as well as by the Credit and Collections area for North America, Brazil and Argentina, which report to the Corporate Finance Division. The regulations and procedures applicable for the correct control and risk management over the sales on credit are ruled by the Credit Policy.

A procedure that must be applied by all the companies of the Arauco group has been established for the approval and/or modification of client credit lines. Credit line requests are entered to the SAP that analyzes all available information. Afterwards, the same are either approved or rejected in each one of the internal committees of each company belonging to the Arauco group, depending on the maximum amount authorized by the Credit Policy. Lines of credit are renewed during this internal process on a yearly basis.

All sales are automatically controlled by a credit verification system, which has been configured to block any orders from clients who are delinquent in a given percentage of a debt and/or from clients whose line of credit, as of the time of the product’s shipping, has been exceeded or is overdue.

100

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

In order to minimize the credit risk for term or Open Account sales, it is Arauco’s policy to take out insurance to cover the export sales of companies Celulosa Arauco y Constitución S.A., Maderas Arauco S.A., Forestal Arauco S.A., Arauco Argentina S.A., and Arauco do Brasil S.A., as well as the domestic sales of Arauco Europe Coöperatief U.A., Arauco Argentina S.A., Araucomex S.A. de C.V., Arauco Industria de México, S.A. de C.V., Arauco Peru S.A., Arauco North America, Inc., Arauco Canada Ltd., Celulosa Arauco y Constitución S.A., Maderas Arauco S.A., Arauco Florestal Arapoti S.A., Arauco Forest Brasil S.A., Arauco do Brasil S.A. and Arauco Industria de Paineis S.A. Arauco works with credit insurance company Allianz Trade For Multinationals (Aa2 rating, as per risk rating companies Moody’s).

As another way of minimizing risk and supporting a line of credit approved by the Credit Committee through guarantees, Arauco holds guarantees such as mortgages, pledges, Standby letters of credit, bank performance bonds, checks, promissory notes, borrowings or any other that could be required under the laws of each country. The total amount held in guarantees amounts to ThU.S.$ 107,940, effective as of September 30, 2023, as summarized in the following chart. The procedure for guarantees is regulated by Arauco’s Policy on Guarantees, whose purpose is to control their accounting, due date and custody.

Guarantees Arauco group (ThU.S.$)
Guarantees debtors (received from clients)
Certificate of deposits	2,182	2.02	%
Standby	10,099	9.36	%
Promissory notes	80,609	74.68	%
Finance	1,807	1.67	%
Mortgage	1,014	0.94	%
Pledge	632	0.59	%
Loan agreement	11,597	10.74	%
Total guarantees	107,940	100.00	%

The maximum exposure to credit risk is limited to the value at amortized cost of the Debtors’ account for sales registered as of the date of this report, minus the percentage of sales insured by the aforementioned credit insurance companies and the guarantees granted in favor of Arauco.

In summary, the open account debt covered by the various insurance policies and guarantees amounts to 98.78% and, therefore, Arauco’s portfolio exposure amounts to 1.22%.

Secured open accounts receivable	ThU.S.$		%
Total open accounts receivable		432,505		100.00	%
Secured receivables (*)		427,220		98.78	%
Unsecured receivables		5,286		1.22	%

(*) Insured debt is deemed to be the portion of accounts receivable that is covered by a credit company or by guarantees such as standby letters of credit, mortgages, performance bonds, among others.

101

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Investment policy:

Arauco has an Investment Policy which identifies and limits the financial instruments and the entities into which the Arauco companies, in particular Celulosa Arauco y Constitucion S.A., are authorized to invest. The Company’s Treasury Department is centralized with operations in Chile, USA, Canada and México. The Head Office is responsible for carrying out investments, cash flow surplus investments, and short and long-term debt subscriptions. Exceptions to this rule apply to short and long-term debt, and will be for specific investments made through other companies where authorization is required from the Chief Financial Officer.

For financial instruments, the only permitted investments are fixed income investments with adequate liquidity. Each instrument has defined classifications and limits, depending on duration and type of issuer.

Regarding intermediaries (such as banks, securities brokers and dealers of mutual funds that are bank affiliates), a scoring methodology is used to determine the relative degree of risk of each intermediary based on their financial position and assign score points that result in a credit risk rating to each intermediary. Arauco uses this scoring system to determine its investment limits for each intermediary.

The required information to evaluate the various criteria are obtained from published financial statements from the banks under evaluation and from the credit risk ratings of short and long-term debt securities obtained from rating agencies authorized by the Commission for the Financial Market (Fitch Ratings Chile, Humphreys and Feller Rate).

Any necessary exceptions regarding investment limits in each particular instrument or entity must have the authorization from Arauco’s Chief Financial Officer.

23.10.2 Type of risk: Liquidity risk

Description

This risk corresponds to Arauco’s ability to fulfill its financial obligations upon maturity.

Explanation of liquidity risk exposure and how this risk arises

Arauco’s exposure to liquidity risk is mainly from its obligations to bondholders, banks and financial institutions, creditors and other payables. Liquidity risk may arise if Arauco is unable to meet the net cash flow requirements, which sustain its operations under both normal and exceptional circumstances.

Explanation of objectives, policies and processes for risk management, and measurement methods

The Corporate Financial Management Division monitors on an ongoing basis the Company’s cash flow forecasts based on short and long-term forecasts and available financing alternatives. In order to manage the risk level of financial assets, Arauco follows its investment policy.    

The following tables detail Arauco’s liquidity analysis for its financial liabilities as of September 30, 2023 and December 31, 2022. The tables have been drawn up based on the contractual undiscounted cash outflows and their remaining contractual maturities.

102

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

September 30, 2023				Maturity														Total				Effective rate			Nominal rate
				Up to 3		3 to 12		1 to 2		2 to 3		3 to 4		4 to 5		More than 5				Non
				months		months		Years		years		years		years		years		Current		current
Tax ID	Name	Currency	Bank borrowings	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
93.458.000-1	Celulosa Arauco y Constitución S.A.	Euros	BNP paribas / ECA		—		71,617		70,853		70,137		69,428		68,715		101,723		71,617		380,856		1.10	%	Fixed 1.06%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Bank of Nova Scotia		3,834		—		223,539		—		—		—		—		3,834		223,539		6.63	%	Fixed 6.60%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Banco Estado		50,027		—		—		—		—		—		—		50,027		—		6.45	%	Fixed 6.45%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	BCI		70,067		—		—		—		—		—		—		70,067		—		5.42	%	Fixed 5.42%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Banco de Chile		70,056		—		—		—		—		—		—		70,056		—		5.72	%	Fixed 5.72%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Scotiabank		50,026		—		—		—		—		—		—		50,026		—		6.17	%	Fixed 6.17%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Banco Santander		50,032		—		—		—		—		—		—		50,032		—		5.80	%	Fixed 5.80%
—	Eufores S.A.	U.S. dollar	Banco BBVA		20,523		—		—		—		—		—		—		20,523		—		5.30	%	Fixed 5.3%
—	Eufores S.A.	U.S. dollar	Banco Republica Oriental del Uruguay		56,320		—		—		—		—		—		—		56,320		—		4.76	%	Fixed 4.76%
—	StoraEnso Uruguay S.A.	U.S. dollar	Banco Republica Oriental del Uruguay		5,120		—		—		—		—		—		—		5,120		—		4.76	%	Fixed 4.76%
—	Zona Franca Punta Pereira S.A.	U.S. dollar	Banco Republica Oriental del Uruguay		15,360		—		—		—		—		—		—		15,360		—		4.76	%	Fixed 4.76%
—	Eufores S.A.	U.S. dollar	Banco Itaú		15,381		—		—		—		—		—		—		15,381		—		5.52	%	Fixed 5.52%
—	Eufores S.A.	U.S. dollar	Santander		42,854		—		—		—		—		—		—		42,854		—		5.55	%	Fixed 5.55%
—	Eufores S.A.	U.S. dollar	Scotiabank		5,139		—		—		—		—		—		—		5,139		—		5.65	%	Fixed 5.65%
—	Arauco Forest Brasil S.A.	Brazilian real	Banco Safra S.A.		—		5,483		18,395		16,538		14,697		—		—		5,483		49,630		14.30	%	CDI + 1.65%
—	Arauco do Brasil S.A.	Brazilian real	Itaú Unibanco S.A.		—		70		71		534		—		—		—		70		605		14.40	%	CDI + 1.75%
—	Arauco Celulose do Brasil S.A.	Brazilian real	Itaú Unibanco S.A.		—		9,718		9,792		74,749		—		—		—		9,718		84,541		14.27	%	CDI + 1.62%
—	Arauco Celulose do Brasil S.A.	Brazilian real	Banco BTG pactual S.A.		3,667		6,894		22,424		20,117		17,771		—		—		10,561		60,312		14.21	%	CDI + 1.56%
	Arauco Celulose do Brasil S.A.	Brazilian real	Banco Safra S.A.		2,113		7,015		13,085		11,704		5,343		—		—		9,128		30,132		14.20	%	CDI + 1.55%
	Arauco Argentina S.A.	U.S. dollar	Banco BBVA		444		—		—		—		—		—		—		444		—		16.80	%	Fixed 16.8%
—	Arauco Argentina S.A.	U.S. dollar	Banco Industria y Comercial de China		1,201		—		—		—		—		—		—		1,201		—		14.00	%	Fixed 14%
—	Arauco Argentina S.A.	U.S. dollar	Banco Industria y Comercial de China		1,108		—		—		—		—		—		—		1,108		—		14.00	%	Fixed 13.8%
—	Arauco Argentina S.A.	U.S. dollar	Banco Industria y Comercial de China		428		—		—		—		—		—		—		428		—		14.20	%	Fixed 14%
—	Arauco Argentina S.A.	U.S. dollar	Banco Industria y Comercial de China		—		526		—		—		—		—		—		526		—		14.70	%	Fixed 14.5%
—	Arauco Argentina S.A.	U.S. dollar	Banco Industria y Comercial de China		—		540		—		—		—		—		—		540		—		15.20	%	Fixed 15%
—	Arauco Argentina S.A.	U.S. dollar	Banco Industria y Comercial de China		—		1,634		—		—		—		—		—		1,634		—		15.70	%	Fixed 15.5%
—	Arauco North America, Inc.	U.S. dollar	Banco Itau Corpbanca - NY Branch		22,537		217,034		—		—		—		—		—		239,571		—		6.59	%	Libor 6m + 1.65%
			Total		486,237		320,531		358,159		193,779		107,239		68,715		101,723		806,768		829,615

September 30, 2023				Maturity														Total				Effective rate			Nominal rate
				Up to 3		3 to 12		1 to 2		2 to 3		3 to 4		4 to 5		More than 5				Non
				months		months		years		years		years		years		years		Current		current
Tax ID	Name	Currency	Bonds	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-F		11,551		11,361		22,149		21,386		20,623		19,860		28,359		22,912		112,377		4.26	%		4.25	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-F		4,621		4,544		8,860		8,554		8,249		7,944		11,344		9,165		44,951		4.24	%		4.25	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-P		12,485		12,305		24,072		23,353		22,634		21,916		89,728		24,790		181,703		3.96	%		4.00	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-R		3,561		3,561		7,121		7,121		7,121		7,121		249,422		7,122		277,906		3.57	%		3.60	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-S		2,381		2,381		4,761		4,761		201,955		—		—		4,762		211,477		2.43	%		2.40	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-W		1,251		1,251		2,501		2,501		2,501		2,501		120,995		2,502		130,999		2.12	%		2.10	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-X		2,944		2,944		5,888		5,888		5,888		5,888		310,793		5,888		334,345		2.70	%		2.70	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-Y		1,228		1,228		2,456		2,456		2,456		2,456		89,653		2,456		99,477		3.10	%		3.10	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-Z		3,168		3,168		6,336		6,336		6,336		6,336		294,615		6,336		319,959		3.18	%		3.20	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-AB		3,168		3,168		6,336		6,336		6,336		6,336		313,623		6,336		338,967		3.19	%		3.20	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2024		—		522,500		—		—		—		—		—		522,500		—		4.52	%		4.50	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2027		9,688		9,688		19,375		19,375		19,375		509,688		—		19,376		567,813		3.90	%		3.88	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2047		11,000		11,000		22,000		22,000		22,000		22,000		829,000		22,000		917,000		5.50	%		5.50	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2029		10,625		10,625		21,250		21,250		21,250		21,250		521,250		21,250		606,250		4.27	%		4.25	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2049		13,750		13,750		27,500		27,500		27,500		27,500		1,077,500		27,500		1,187,500		5.51	%		5.50	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2030		—		21,000		21,000		21,000		21,000		21,000		531,500		21,000		615,500		4.21	%		4.20	%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2050		—		25,750		25,750		25,750		25,750		25,750		1,053,625		25,750		1,156,625		5.16	%		5.15	%
			Total		91,421		660,224		227,355		225,567		420,974		707,546		5,521,407		751,645		7,102,849

103

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

September 30, 2023							Maturity														Total
							Up to 3		3 to 12		1 to 2		2 to 3		3 to 4		4 to 5		More than 5				Non
							months		months		years		years		years		years		years		Current		current
Tax ID		Name	Currency		Underlying asset class		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
	85.805.200-9	Forestal Arauco S.A.		U.F.		Motor vehicles		179		455		428		340		33		—		—		634		801
	85.805.200-9	Forestal Arauco S.A.		U.F.		Lands		—		461		461		403		403		403		6,521		461		8,191
	85.805.200-9	Forestal Arauco S.A.		U.S. dollar		Lands		60		180		240		240		240		240		60		240		1,020
	85.805.200-9	Forestal Arauco S.A.		U.F.		Plants and equipments		95		256		206		733		—		—		—		351		939
	85.805.200-9	Forestal Arauco S.A.		Chilean pesos		Plants and equipments		110		297		396		677		273		—		—		407		1,346
	—	Arauco Argentina S.A.		U.S. dollar		Buildings and constructions		146		439		185		—		—		—		—		585		185
	—	Arauco Argentina S.A.		U.S. dollar		IT equipment		5		14		—		—		—		—		—		19		—
	—	Arauco Argentina S.A.		U.S. dollar		Plants and equipments		259		668		—		—		—		—		—		927		—
	—	Arauco Argentina S.A.		U.S. dollar		Motor vehicles		523		1,195		398		4		—		—		—		1,718		402
	—	Arauco Florestal Novo Oeste		Brazilian real		Buildings and constructions		4		13		16		—		—		—		—		17		16
	—	Arauco Industria de Paineis S.A.		Brazilian real		Buildings and constructions		10		10		—		—		—		—		—		20		—
	—	Arauco Industria de Paineis S.A.		Brazilian real		IT equipment		1		4		6		6		6		1		—		5		19
	—	Arauco Industria de Paineis S.A.		Brazilian real		Motor vehicles		1,254		3,791		5,384		5,384		4,935		—		—		5,045		15,703
	—	Arauco Forest Brasil S.A.		Brazilian real		IT equipment		144		151		4		—		—		—		—		295		4
	—	Arauco Forest Brasil S.A.		Brazilian real		Lands		29		37		19		19		6		—		—		66		44
	—	Arauco Forest Brasil S.A.		Brazilian real		Motor vehicles		27		54		—		—		—		—		—		81		—
	—	Arauco Florestal Arapoti S.A.		Brazilian real		Motor vehicles		10		15		—		—		—		—		—		25		—
	—	Arauco do Brasil S.A.		Brazilian real		Buildings and constructions		7		10		31		31		20		—		—		17		82
	—	Arauco do Brasil S.A.		Brazilian real		IT equipment		5,349		10,964		23,595		19,486		19,260		19,260		317,049		16,313		398,650
	—	Arauco do Brasil S.A.		Brazilian real		Motor vehicles		18		53		71		29		—		—		—		71		100
	—	Arauco Celulose do Brasil S.A.		Brazilian real		Lands		12		37		50		41		—		—		—		49		91
	—	Arauco Celulose do Brasil S.A.		Brazilian real		Buildings and constructions		—		2,590		2,590		2,590		2,590		2,590		23,313		2,590		33,673
	—	Mahal Empreendimentos e Participações S.A.		Brazilian real		Motor vehicles		2		—		—		—		—		—		—		2		—
	—	Mahal Empreendimentos e Participações S.A.		Brazilian real		Lands		418		1,254		1,672		1,672		1,672		1,672		418		1,672		7,106
	—	Mahal Empreendimentos e Participações S.A.		Brazilian real		Buildings and constructions		48		114		98		40		1		—		—		162		139
	93.458.000-1	Celulosa Arauco y Constitucion S.A.		Brazilian real		Buildings and constructions		999		3,008		4,022		4,037		4,051		4,066		57,474		4,007		73,650
	93.458.000-1	Celulosa Arauco y Constitucion S.A.		Brazilian real		Motor vehicles		3,365		8,552		11,018		7,367		2,372		2,372		2,372		11,917		25,501
	93.458.000-1	Celulosa Arauco y Constitucion S.A.		U.S. dollar		Plants and equipments		433		1,299		1,732		1,732		1,732		1,732		942		1,732		7,870
	93.458.000-1	Celulosa Arauco y Constitucion S.A.		Chilean pesos		Motor vehicles		308		774		1,356		1,503		833		257		—		1,082		3,949
	—	Arauco North America, Inc.		U.S. dollar		Buildings and constructions		214		669		916		392		81		8		—		883		1,397
	—	Arauco North America, Inc.		U.S. dollar		Motor vehicles		11		34		59		64		46		—		—		45		169
	—	Arauco Canada Limited		Canadian dollar		Motor vehicles		239		640		480		640		640		640		7,014		879		9,414
	—	Celulosa y Energía Punta Pereira S.A.		U.S. dollar		Plants and equipments		1,049		2,842		6,591		6,133		5,645		5,363		34,622		3,891		58,354
	—	Eufores S.A.		U.S. dollar		Lands		307		918		917		1,222		1,223		612		—		1,225		3,974
	—	Eufores S.A.		U.S. dollar		Plants and equipments		80		100		—		—		—		—		—		180		—
	—	Eufores S.A.		U.S. dollar		Buildings and constructions		1,206		—		—		—		—		—		—		1,206		—
	96.510.970-6	Maderas Arauco S.A.		Chilean pesos		Motor vehicles		9		25		7		4		—		—		—		34		11
	96.510.970-6	Maderas Arauco S.A.		U.F.		Motor vehicles		7		22		25		15		11		—		—		29		51
	—	Arauco Europe Cooperatief U.A.		Euros		Motor vehicles		20		54		36		—		—		—		—		74		36
	—	Arauco Europe Cooperatief U.A.		Euros		Buildings and constructions		549		1,719		1,045		457		183		83		—		2,268		1,768
	—	Araucomex S.A. de C.V.		Mexican pesos		Buildings and constructions		10		—		—		—		—		—		—		10		—
	—	Araucomex S.A. de C.V.		U.S. dollar		Buildings and constructions		—		24		103		50		36		—		—		24		189
	—	Arauco Industria de México, S.A. de C.V.		Mexican pesos		Motor vehicles		—		34		148		164		264		—		—		34		576
	—	Arauco Industria de México, S.A. de C.V.		Mexican pesos		Buildings and constructions		—		1		6		—		—		—		—		1		6
	—	Arauco Industria de México, S.A. de C.V.		Mexican pesos		Lands		—		2		7		4		—		—		—		2		11
	—	Arauco Industria de México, S.A. de C.V.		Mexican pesos		IT equipment		—		6		29		19		3		—		—		6		51
	—	Araucomex Servicios S.A. de C.V.		Mexican pesos		Motor vehicles		3		5		—		—		—		—		—		8		—
	79.990.550-7	Investigaciones Forestales Bioforest S.A.		U.F.		Motor vehicles		3		5		—		—		—		—		—		8		—
						Total		17,519		43,790		64,347		55,498		46,559		39,299		449,785		61,309		655,488

As part of the policy of Arauco, it considers compliance with all accounts payable, whether with related (see Note 13) or third parties, within a period not exceeding 30 days.

104

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

December 31, 2022					Maturity														Total			Effective rate			Nominal rate
					Up to 3		3 to 12		1 to 2		2 to 3		3 to 4		4 to 5		More than 5			Non
					months		months		Years		years		years		Years		years		Current	current
Tax ID		Name	Currency	Bank borrowings	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$	ThU.S.$
	93.458.000-1	Celulosa Arauco y Constitución S.A.	Euros	BNP paribas / ECA		—		71,000		66,743		66,040		65,380		64,711		127,424	71,000		390,298		1.10	%	1.06%
	93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Banco de Chile		60,259		—		—		—		—		—		—	60,259		—		5.17	%	Fixed 5.17%
	—	Zona Franca Punta Pereira S.A.	U.S. dollar	Banco Interamericano de Desarrollo A		1,138		1,074		—		—		—		—		—	2,212		—		5.89	%	2.05% + libor 6m
	—	Zona Franca Punta Pereira S.A.	U.S. dollar	Banco BBVA		—		5,122		—		—		—		—		—	5,122		—		4.95	%	Fixed 4.95%
	—	Celulosa y Energia Punta Pereira S.A.	U.S. dollar	Banco Interamericano de Desarrollo A		4,512		4,300		—		—		—		—		—	8,812		—		5.89	%	2.05% + libor 6m
	—	Celulosa y Energia Punta Pereira S.A.	U.S. dollar	Finnish Export Credit		24,459		—		—		—		—		—		—	24,459		—		3.20	%	3.20%
	—	Eufores S.A.	U.S. dollar	Banco República Oriental del Uruguay		—		27,688		—		—		—		—		—	27,688		—		1.40	%	Fixed 1.4%
	—	Stora Enso Uruguay S.A.	U.S. dollar	Banco República Oriental del Uruguay		—		2,517		—		—		—		—		—	2,517		—		1.40	%	Fixed 1.4%
	—	Zona Franca Punta Pereira S.A.	U.S. dollar	Banco República Oriental del Uruguay		—		7,551		—		—		—		—		—	7,551		—		1.40	%	Fixed 1.4%
	—	Eufores S.A.	U.S. dollar	Banco Itaú		—		15,382		—		—		—		—		—	15,382		—		5.17	%	Fixed 5.165%
	—	Eufores S.A.	U.S. dollar	Santander		—		21,382		—		—		—		—		—	21,382		—		5.12	%	Fixed 5.12%
	—	Arauco Forest Brasil S.A.	Brazilian real	Banco Safra S.A.		2,826		2,830		5,586		17,983		16,081		14,194		—	5,656		53,844		15.30	%	CDI + 1.65%
	—	Mahal Empreendimentos e Participações S.A.	Brazilian real	Banco Safra S.A.		—		4,209		13,463		12,029		10,628		—		—	4,209		36,120		15.20	%	CDI + 1.55%
	—	Arauco North America, Inc.	U.S. dollar	Banco Itau Corpbanca - NY Branch		—		45,760		217,247		—		—		—		—	45,760		217,247		4.23	%	1.65% + libor 6m
				Total		93,194		208,815		303,039		96,052		92,089		78,905		127,424	302,009		697,509

December 31, 2022				Maturity														Total				Effective rate			Nominal rate
				Up to 3		3 to 12		1 to 2		2 to 3		3 to 4		4 to 5		More than 5				Non
				months		months		years		years		years		years		years		Current		current
Tax ID	Name	Currency	Bonds	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-F		—		23,934		23,149		22,365		21,581		20,797		39,243		23,934		127,135		4.25	%	4.25%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-F		—		9,573		9,260		8,946		8,633		8,319		15,697		9,573		50,855		4.24	%	4.25%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-P		—		25,840		25,102		24,364		23,625		22,887		103,359		25,840		199,337		3.95	%	4.00%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-R		—		7,317		7,317		7,317		7,317		7,317		259,931		7,317		289,199		3.56	%	3.60%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-S		—		4,892		4,892		4,892		209,947		—		—		4,892		219,731		2.43	%	2.40%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-W		—		2,570		2,570		2,570		2,570		2,570		125,603		2,570		135,883		2.11	%	2.10%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.F.	Barau-X		—		6,050		6,050		6,050		6,050		6,050		322,353		6,050		346,553		2.68	%	2.70%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2024		11,250		11,250		522,500		—		—		—		—		22,500		522,500		4.51	%	4.50%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2027		—		19,375		19,375		19,375		19,375		509,688		—		19,375		567,813		3.89	%	3.88%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2047		—		22,000		22,000		22,000		22,000		22,000		840,000		22,000		928,000		5.50	%	5.50%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2029		—		21,250		21,250		21,250		21,250		21,250		531,875		21,250		616,875		4.26	%	4.25%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2049		—		27,500		27,500		27,500		27,500		27,500		1,091,250		27,500		1,201,250		5.50	%	5.50%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2030		10,500		10,500		21,000		21,000		21,000		21,000		552,500		21,000		636,500		4.20	%	4.20%
93.458.000-1	Celulosa Arauco y Constitución S.A.	U.S. dollar	Yankee 2050		12,875		12,875		25,750		25,750		25,750		25,750		1,079,375		25,750		1,182,375		5.16	%	5.15%
			Total		34,625		204,926		737,715		213,379		416,598		695,128		4,961,186		239,551		7,024,006

105

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

December 31, 2022							Maturity														Total
							Up to 3		3 to 12		1 to 2		2 to 3		3 to 4		4 to 5		More than 5				Non
Tax ID		Name		Currency		Underlying asset class	months ThU.S.$		months ThU.S.$		years ThU.S.$		years ThU.S.$		years ThU.S.$		years ThU.S.$		years ThU.S.$		Current ThU.S.$		current ThU.S.$
	85.805.200-9		Forestal Arauco S.A.		U.F.	Motor vehicles		421		639		571		433		268		4		—		1,060		1,276
	85.805.200-9		Forestal Arauco S.A.		U.F.	Lands		282		—		282		282		282		282		4,654		282		5,782
	85.805.200-9		Forestal Arauco S.A.		U.S. dollar	Lands		60		180		240		240		240		240		240		240		1,200
	85.805.200-9		Forestal Arauco S.A.		U.F.	Plants and equipments		242		—		—		—		—		—		—		242		—
	85.805.200-9		Forestal Arauco S.A.		U.F.	Other property, plant and equipment		96		289		268		209		640		—		—		385		1,117
	85.805.200-9		Forestal Arauco S.A.		Chilean pesos	Other property, plant and equipment		97		169		120		120		354		—		—		266		594
	—		Arauco Argentina S.A.		U.S. dollar	Buildings and constructions		116		345		460		38		—		—		—		461		498
	—		Arauco Argentina S.A.		U.S. dollar	IT equipment		6		10		—		—		—		—		—		16		—
	—		Arauco Argentina S.A.		U.S. dollar	Plants and equipments		251		752		668		—		—		—		—		1,003		668
	—		Arauco Argentina S.A.		U.S. dollar	Motor vehicles		429		1,161		750		—		—		—		—		1,590		750
	—		Novo Oeste Gestão de Ativos Florestais S.A.		Brazilian real	Motor vehicles		5		3		—		—		—		—		—		8		—
	—		Novo Oeste Gestão de Ativos Florestais S.A.		Brazilian real	Buildings and constructions		1		3		—		—		—		—		—		4		—
	—		Arauco Industria de Paineis S.A.		Brazilian real	Fixed facilities and accessories		9		16		—		—		—		—		—		25		—
	—		Arauco Industria de Paineis S.A.		Brazilian real	IT equipment		5		12		16		11		—		—		—		17		27
	—		Arauco Industria de Paineis S.A.		Brazilian real	Motor vehicles		10		30		9		—		—		—		—		40		9
	—		Arauco Forest Brasil S.A.		Brazilian real	IT equipment		1		—		—		—		—		—		—		1		—
	—		Arauco Forest Brasil S.A.		Brazilian real	Lands		1,569		3,285		4,885		4,885		4,506		3,636		—		4,854		17,912
	—		Arauco Forest Brasil S.A.		Brazilian real	Motor vehicles		147		405		131		—		—		—		—		552		131
	—		Arauco Florestal Arapoti S.A.		Brazilian real	Motor vehicles		92		89		24		—		—		—		—		181		24
	—		Arauco do Brasil S.A.		Brazilian real	Buildings and constructions		52		157		52		—		—		—		—		209		52
	—		Arauco do Brasil S.A.		Brazilian real	IT equipment		21		53		14		—		—		—		—		74		14
	—		Arauco do Brasil S.A.		Brazilian real	Motor vehicles		18		20		2		—		—		—		—		38		2
	—		Arauco Celulose do Brasil S.A.		Brazilian real	Lands		381		4,030		4,058		4,058		4,058		4,058		45,148		4,411		61,380
	—		Mahal Empreendimentos e Participações S.A.		Brazilian real	Motor vehicles		203		552		328		164		—		—		—		755		492
	—		Mahal Empreendimentos e Participações S.A.		Brazilian real	Lands		—		2,381		2,381		2,381		2,381		2,381		23,808		2,381		33,332
	—		Mahal Empreendimentos e Participações S.A.		Brazilian real	Buildings and constructions		18		53		—		—		—		—		—		71		—
	93.458.000-1		Celulosa Arauco y Constitucion S.A.		U.F.	Buildings and constructions		424		1,273		1,697		1,697		1,697		1,697		1,698		1,697		8,486
	93.458.000-1		Celulosa Arauco y Constitucion S.A.		U.F.	Motor vehicles		139		174		142		88		27		—		—		313		257
	93.458.000-1		Celulosa Arauco y Constitucion S.A.		Chilean pesos	Buildings and constructions		15		—		—		—		—		—		—		15		—
	93.458.000-1		Celulosa Arauco y Constitucion S.A.		U.S. dollar	Plants and equipments		999		2,998		4,011		4,026		4,040		4,055		60,526		3,997		76,658
	93.458.000-1		Celulosa Arauco y Constitucion S.A.		Chilean pesos	Motor vehicles		2,866		2,953		—		—		—		—		—		5,819		—
	—		Arauco North America, Inc.		U.S. dollar	Buildings and constructions		336		852		1,020		1,131		1,162		499		429		1,188		4,241
	—		Arauco North America, Inc.		U.S. dollar	Motor vehicles		173		540		593		244		52		4		—		713		893
	—		Arauco Canada Limited		Canadian dollar	Motor vehicles		4		23		—		—		—		—		—		27		—
	—		Celulosa y Energía Punta Pereira S.A.		U.S. dollar	Plants and equipments		239		719		800		641		641		641		7,332		958		10,055
	—		Eufores S.A.		U.S. dollar	Lands		975		2,926		6,808		6,306		5,861		5,373		38,052		3,901		62,400
			Eufores S.A.		U.S. dollar	Plants and equipments		306		917		1,222		1,222		1,222		1,222		—		1,223		4,888
	—		Eufores S.A.		U.S. dollar	Buildings and constructions		70		88		49		—		—		—		—		158		49
	96.510.970-6		Maderas Arauco S.A.		Chilean pesos	Motor vehicles		1,400		3,451		—		—		—		—		—		4,851		—
	96.510.970-6		Maderas Arauco S.A.		U.F.	Motor vehicles		63		42		28		6		3		—		—		105		37
	—		Arauco Europe Cooperatief U.A.		Euros	Motor vehicles		7		18		19		12		2		—		—		25		33
	—		Arauco Europe Cooperatief U.A.		Euros	Buildings and constructions		18		54		72		18		—		—		—		72		90
	—		Araucomex S.A. de C.V.		Mexican pesos	Buildings and constructions		456		1,126		1,620		—		—		—		—		1,582		1,620
	—		Araucomex S.A. de C.V.		U.S. dollar	Buildings and constructions		29		68		—		—		—		—		—		97		—
	—		Arauco Industria de México, S.A. de C.V.		Mexican pesos	Motor vehicles		17		53		76		26		11		—		—		70		113
	—		Arauco Industria de México, S.A. de C.V.		U.S. dollar	Plants and equipments		79		26		—		—		—		—		—		105		—
	—		Arauco Industria de México, S.A. de C.V.		Mexican pesos	Buildings and constructions		13		9		—		—		—		—		—		22		—
	—		Arauco Industria de México, S.A. de C.V.		Mexican pesos	Lands		1		3		5		—		—		—		—		4		5
	—		Arauco Industria de México, S.A. de C.V.		Mexican pesos	IT equipment		1		5		7		4		—		—		—		6		11
	—		Araucomex Servicios S.A. de C.V.		Mexican pesos	Motor vehicles		6		17		26		17		3		—		—		23		46
	96.637.330-K		Servicios Logisticos Arauco S.A.		U.F.	Motor vehicles		16		—		—		—		—		—		—		16		—
	79.990.550-7		Investigaciones Forestales Bioforest S.A.		U.F.	Motor vehicles		9		12		5		—		—		—		—		21		5
						Total		13,193		32,981		33,459		28,259		27,450		24,092		181,887		46,174		295,147

As part of the policy of Arauco, it considers compliance with all accounts payable, whether with related (see Note 13) or third parties, within a period not exceeding 30 days.

106

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Regarding the Libor rate and its discontinuity, at the end of September 2023 Arauco maintains 3.67% of its total debt at said rate and it is not estimated that the effect of its elimination will be material. Additionally, Arauco maintains interest rate derivatives for 100.00% of its Libor rate based debt. The credits set at the Libor rate that Arauco maintains at the closing date of these interim consolidated financial statements generally include provisions that allow the rate to be modified in the event of situations such as that given by the discontinuation of Libor rates. Notwithstanding the automatic conversion mechanisms to alternative rates, Arauco has been finalizing negotiations with its counterparties in recent months to change the base rates from Libor to SOFR or Term SOFR.

As of September 30, 2023, it is estimated that this change will not have a significant impact on Arauco’s results.

Guarantees

As of the date of these interim consolidated financial statements, Arauco has financial assets of approximately MU.S.$ 19 that have been pledged to third parties (beneficiaries), as direct guarantee. If Arauco does not fulfill its obligations, the guarantors could execute the guarantees.

As of September 30, 2023, the total assets pledged as an indirect guarantee were MU.S.$ 421. In contrast to direct guarantees, indirect guarantees are given to secure obligations assumed by a third party.

On September 29, 2011, Arauco entered into a Security Agreement under which it granted a non-joint guarantee limited to 50% of the obligations of the Uruguayan companies (joint ventures) Celulosa y Energía Punta Pereira S.A. and Zona Franca Punta Pereira S.A., under the IDB Facility Agreement in the amount of up to MU.S.$ 454 and the Finnvera Guaranteed Facility Agreement in the amount of up to MU.S.$ 900. As of September 30, 2023 both agreement were paid, finishing the related indirect guarantee.

Direct and indirect guarantees granted by Arauco:

DIRECT
Subsidiary	Guarantee	Assets pledged	Currency	ThU.S.$	Guarantor
Celulosa Arauco y Constitución S.A.	Guarantee letter	—	Chilean pesos	825	Directorate General of Maritime Territory and Merchant Marine
Celulosa Arauco y Constitución S.A.	Guarantee letter	—	Chilean pesos	2,941	Railways
Celulosa Arauco y Constitución S.A.	Guarantee letter	—	Chilean pesos	15,351	Sociedad Concesionaria Autopista Costa Arauco S.A.
		Total		19,117

INDIRECT
Subsidiary	Guarantee	Assets pledged	Currency	ThU.S.$	Guarantor
Celulosa Arauco y Constitución S.A.	Full Guarantee, of Arauco North America, Inc.	—	U.S. dollar	225,000	Bank Itaú Corpbanca – NY Branch
Arauco do Brasil S.A.	Endorsement of Arauco Forest Brasil S.A.	—	Brazilian real	40,901	Banco Safra S.A.
Arauco do Brasil S.A.	Endorsement of Mahal Empreendimentos e Participações S.A.	—	Brazilian real	31,538	Banco Safra S.A.
Arauco do Brasil S.A.	Endorsement of Arauco Celulose do Brasil S.A.	—	Brazilian real	70,042	Itaú Unibanco S.A.
Arauco do Brasil S.A.	Endorsement of Arauco Celulose do Brasil S.A.	—	Brazilian real	53,562	Bank BTG Pactual S.A.
		Total		421,043

107

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.10.3 Type of risk: Market risk – exchange rate

Description

Market risk arises from the probability of being affected by losses from fluctuations in currencies exchange rates in which assets and liabilities are denominated, in a functional currency other than the functional currency of Arauco.

Explanation of currency risk exposure and how this risk arises

Arauco is exposed to the foreign currency risk from currency fluctuations arising from sales, purchases and obligations undertaken in foreign currencies, such as the Chilean peso, Euro, Brazilian real or other foreign currencies. In the case of significant exchange rate variations, the Chilean peso is the currency that represents the main currency risk. See Note 11 for details assets and liabilities classified by currency.

Explanation of risk management objectives, policies and processes, and measurement methods

Arauco performs sensitivity analyses to measure the effect of this variable on equity and net result.

Sensitivity analysis considers a variation of +/- 10% of the exchange rate over the Chilean peso. This fluctuation range is considered possible given current market conditions as of the date of these interim consolidated financial statements. With all other variables at a constant rate, a U.S. dollar exchange rate variation of +/- 10% in relation to the Chilean peso would mean a change in the net income year after tax +/- 2.12% (equivalent to ThU.S.$ -/+ 5,831), and +/- 0.04% of equity (equivalent to ThU.S.$ -/+ 3,498).

Additionally, a sensitivity analysis is carried out assuming a variation of +/- 10% in the closing exchange rate on the Brazilian real, which is considered a possible range of fluctuation given the market conditions as of the date of these interim consolidated financial statements. With all the other variables constant, a variation of +/- 10% in the exchange rate of the dollar on the Brazilian real would mean a variation on the net income after tax +/- 2.94% (equivalent to ThU.S.$-/+$ 8,080) and a change on the equity of +/- 1.41% (equivalent to ThU.S. -/+$ 111,828).

108

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.10.4 Type of risk: Market risk – interest rate risk

Description

Interest rate risk refers to the sensitivity of the value of financial assets and liabilities in terms of interest rate fluctuations.

Explanation of interest rate risk exposure and how this risk arises

Arauco is exposed to risks due to interest rate fluctuations for bonds issued, bank borrowings and financial instruments that bear interest at a variable rate.

Explanation of risk management objectives, policies and processes, and measurement methods

Arauco completes its risk analysis by reviewing its exposure to changes in interest rates. As of September 30, 2023, 6.2% our financial debt accrues interest at variable rates. A change of +/- 10% in the interest rate is considered a possible range of fluctuation. Such market conditions would affect the income after tax at rate of +/- 0.67% (equivalent to ThU.S.$-/+ 1,843) and +/- 0.014% (equivalent to ThU.S.$-/+ 1,106) on equity.

	September 2023 ThU.S.$		Total
Fixed rate		6,499,133		93.8	%
Bonds issued		4,975,812
Bank borrowings and others (*)		1,033,493
Lease liabilities		489,828
Variable rate		428,231		6.2	%
Bonds issued		—
Bank borrowings		428,231
Total		6,927,364		100.0	%

	December 2022 ThU.S.$		Total
Fixed rate		5,637,820		98.6	%
Bonds issued		4,513,459
Bank borrowings and others (*)		860,137
Lease liabilities		264,224
Variable rate		80,540		1.4	%
Bonds issued		—
Bank borrowings		80,540
Total		5,718,360		100.0	%

(*) Includes variable rate bank borrowings changed by fixed rate swaps.

109

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

23.10.5 Type of risk: Market risk – price of pulp risks

Description

Pulp prices are determined by world and regional market conditions. Prices fluctuate based on demand, production capacity, commercial strategies adopted by large-scale forestry companies, pulp and paper producers and by the availability of substitutes.

Explanation of price risk exposure and how this risk arises

Pulp prices are reflected in revenue from sales and directly affect the net income for the period.

As of September 30, 2023, revenue due to pulp sales accounted for 45.3% of total sales. Pulp prices are fixed on a monthly basis in accordance with the market. Forward contracts or other financial instruments are not used for pulp sales.

Explanation of risk management objectives, policies and processes, and measurement methods

This risk is approached in different ways. Arauco has a team of specialists who perform periodic market and competition analyses, providing tools to analyze and evaluate trends and adjust forecasts. Similarly, Arauco performs price financial sensitivity analysis in order to take the necessary safeguards to confront different scenarios in the best possible manner.

Sensitivity analysis considers a variation of +/- 10% in the average pulp price, a possible fluctuation range given current market conditions at the date of the closing balance. With all other variables constant, a variation of +/- 10% in the average pulp price would mean a variation of +/- 48.4% (equivalent to ThU.S.$-/+ 132,777) on the income for the year after tax and +/- 1.0% (equivalent to ThU.S.$ -/+ 79,666) on equity.

110

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 24. REPORTABLE SEGMENTS

The main products that generate revenue for each reportable segment are described as follows:

Pulp segment

The main products sold by this reportable segment are long fiber bleached pulp (BSKP), short fiber bleached pulp (BHKP), long fiber raw pulp (UKP), pulp fluff and dissolving pulp (DP). Additionally, it manages a forest plantations in order to supply its production plants and, at the same time, to sell to the wood products segment or to third parties what it does not use (pruning, sawing, poles and chips). Finally, depending on its needs, it buys logs and chips from third parties which are consumed or sold to the wood products segment.

The Pulp reportable segment uses wood exclusively from pine and eucalyptus plantations for the production of different classes of wood celulose or pulp. Bleached pulp is mainly used as raw material for producing printing and writing paper, as well as toilet paper and high-quality wrapping paper. Unbleached pulp is used to produce packing paper, filters, fiber cement products, dielectric paper and others. Fluff pulp is mainly used in the production of diapers and female hygiene products. On the other hand, dissolving pulp is used as raw material for the manufacture of different fabrics.

Arauco has seven plants: five in Chile, one in Argentina and one in Uruguay (50% property of Arauco), and they have a total production capacity of approximately 5.3 million tons per year. Pulp is sold in more than 42 countries, mainly in Asia and Europe.

111

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Wood products segment

The main products sold by this segment correspond to plywood, MDF (Medium Density Fiberboard), PB (chipboard), sawn wood of different dimensions and remanufactured products such as moldings, pre-cut pieces, finger joints, among others.

The Panels area produces a wide range of panel products and several kinds of moldings aimed at the furniture, decoration and construction industries. It consists of 20 industrial plants: 4 in Chile, 2 in Argentina, 4 in Brazil, 2 in Mexico, and 8 plants in the U.S. and Canada. The Company has a total annual production capacity of 7.3 million cubic meters of PBO, MDF, plywood and moldings.

Through the joint venture Sonae Arauco, Arauco produces and sells wood panels, of the type of MDF, PB and OSB, and sawn timber, through the operation of 2 panel plants and 1 sawmill in Spain; 2 panel plants and one resin plant in Portugal; 3 panel plants in Germany and 2 panel plants in South Africa. In total, Sonae Arauco’s production capacity is approximately 1.2 million m3 of MDF, 2.4 million m3 of PB, 460,000 m3 of OSB and 70,000 m3 of sawn timber.

Including Sonae Arauco at 50%, Arauco in its mills totalize a capacity of 4.2 million m3 of MDF, 4.2 million m3 of PB and 230,000 m3 of OSB, 710,000 m3 of Plywood and 2,800,000 m3 of sawn timber.

The Sawn Timber area produces a wide range of wood and remanufactured products with different kinds of uses and appearances, which include a wide variety of uses in the furniture, packing, construction and refurbishing industries.

With 7 sawmills in operation (6 in Chile and 1 in Argentina), the Company has a production capacity of 2.7 million m3 of sawn wood.

Furthermore, the Company has 5 remanufacturing plants: 4 in Chile and 1 in Argentina. These plants reprocess sawn wood and produce high quality remanufactured products, such as finger joint and solid moldings as well as precut pieces.

Arauco has no customers representing 10% or more of its revenues.

112

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Below is summarized information concerning the assets, liabilities and profits and losses at the end of each period, by segments. The profit (loss) of each segment informed takes into consideration that taxes and income and financial costs have not been allocated to the various segments, and are shown as part of the Corporate’s segment:

Nine-months period ended September 30, 2023	Pulp ThU.S.$			Wood products ThU.S.$		Others ThU.S.$			Corporate ThU.S.$			Subtotal ThU.S.$			Elimination ThU.S.$			Total ThU.S.$
Revenues from sales of goods		1,927,802			2,413,750		—			—			4,341,552						4,341,552
Revenues from rendering of services		86,678			14,715		345			—			101,738						101,738
Revenues from ordinary activities		2,014,480			2,428,465		345			—			4,443,290						4,443,290
Revenues from transactions with reportable segments		357,617			20,763		39,933			—			418,313			(418,313	)		—
Finance income		—			—		—			84,074			84,074						84,074
Finance costs		—			—		—			(272,666	)		(272,666	)					(272,666	)
Net finance costs		—			—		—			(188,592	)		(188,592	)					(188,592	)
Depreciation and amortizations		345,421			140,758		1,248			6,245			493,672						493,672
Other income		270,007			31,527		334			9,820			311,688						311,688
Other expenses		341,417			40,404		1			11,861			393,683						393,683
Share of profit (loss) of associates and joint ventures accounted for using equity method
Associates		2,294			—		—			1,090			3,384						3,384
Joint ventures		—			10,286		—			1,117			11,403						11,403
Income tax expense		—			—		—			136,192			136,192						136,192
Profit (loss) of each reportable segment		(320,875	)		281,327		(246	)		(234,624	)		(274,418	)					(274,418	)
Geographical information on revenues
Revenue – Chilean entities		1,348,764			867,619		345			—			2,216,728						2,216,728
Revenue – Foreign entities		665,716			1,560,846		—			—			2,226,562						2,226,562
Total revenues from ordinary activities		2,014,480			2,428,465		345			—			4,443,290						4,443,290

Nine-months period ended September 30, 2023	Pulp ThU.S.$		Wood products ThU.S.$		Others ThU.S.$		Corporate ThU.S.$		Subtotal ThU.S.$		Elimination ThU.S.$		Total ThU.S.$
Amounts of additions to non-current assets
Acquisition of property, plant and equipment and biological assets		888,360		108,718		190		10,590		1,007,858		—		1,007,858
Acquisition and contribution of investments in associates and joint venture		—		—		—		16,227		16,227		—		16,227

Nine-months period ended September 30, 2023	Pulp ThU.S.$		Wood products ThU.S.$		Others ThU.S.$		Corporate ThU.S.$		Subtotal ThU.S.$		Elimination ThU.S.$			Total ThU.S.$
Segment assets		13,533,997		2,945,007		17,749		1,094,371		17,591,124		(72,774	)		17,518,350
Segment assets (excluding deferred tax assets)		13,533,997		2,945,007		17,749		1,082,695		17,579,448		(72,774	)		17,506,674
Deferred tax assets								11,676		11,676					11,676
Investments accounted through equity method
Associates		45,197		—		—		65,438		110,635					110,635
Joint Ventures		—		212,632		—		73,582		286,214					286,214
Segment liabilities		969,236		413,424		11,037		8,209,504		9,603,201					9,603,201
Segment liabilities (excluding deferred tax liabilities)		969,236		413,424		11,037		6,671,447		8,065,144					8,065,144
Deferred tax liabilities								1,538,057		1,538,057					1,538,057
Geographical information on non-current assets
Chile		8,506,073		461,936		16,232		391,160		9,375,401		(13,749	)		9,361,652
Foreign countries		3,045,958		1,223,775		—		59,071		4,328,804					4,328,804
Total non-current assets		11,552,031		1,685,711		16,232		450,231		13,704,205		(13,749	)		13,690,456

113

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

Nine-months period ended September 30, 2022	Pulp ThU.S.$		Wood products ThU.S.$		Others ThU.S.$			Corporate ThU.S.$			Subtotal ThU.S.$			Elimination ThU.S.$			Total ThU.S.$
Revenues from sales of goods		2,186,210		3,242,455		—			—			5,428,665						5,428,665
Revenues from rendering of services		78,932		—		455			—			79,387						79,387
Revenues from ordinary activities		2,265,142		3,242,455		455			—			5,508,052						5,508,052
Revenues from transactions with reportable segments		393,046		16,448		39,571			—			449,065			(449,065	)		—
Finance income		—		—		—			49,807			49,807						49,807
Finance costs		—		—		—			(135,901	)		(135,901	)					(135,901	)
Net finance costs		—		—		—			(86,094	)		(86,094	)					(86,094	)
Depreciation and amortizations		229,391		151,267		1,258			8,542			390,458						390,458
Other income		226,853		15,555		352			1,855			244,615						244,615
Other expenses		130,058		21,940		9			13,460			165,467						165,467
Share of profit (loss) of associates and joint ventures accounted for using equity method
Associates		2,524		—		—			4,270			6,794						6,794
Joint ventures		—		33,019		—			1,702			34,721						34,721
Income tax expense		—		—		—			(222,213	)		(222,213	)					(222,213	)
Profit (loss) of each reportable segment		533,567		808,138		(4,930	)		(454,991	)		881,784						881,784
Geographical information on revenues
Revenue – Chilean entities		1,512,724		1,424,996		455			—			2,938,175						2,938,175
Revenue – Foreign entities		752,418		1,817,459		—			—			2,569,877						2,569,877
Total revenues from ordinary activities		2,265,142		3,242,455		455			—			5,508,052						5,508,052

Nine-months period ended September 30, 2022	Pulp ThU.S.$		Wood products ThU.S.$		Others ThU.S.$		Corporate ThU.S.$		Subtotal ThU.S.$		Elimination ThU.S.$		Total ThU.S.$
Amounts of additions to non-current assets
Acquisition of property, plant and equipment and biological assets		1,128,434		72,069		478		6,456		1,207,437		—		1,207,437
Acquisition and contribution of investments in associates and joint venture		—		—		—		132		132		—		132

Twelve-months period ended December 31, 2022	Pulp ThU.S.$		Wood products ThU.S.$		Others ThU.S.$		Corporate ThU.S.$		Subtotal ThU.S.$		Elimination ThU.S.$			Total ThU.S.$
Segment assets		13,094,867		2,959,042		18,291		1,256,321		17,328,521		(148,413	)		17,180,108
Segment assets (excluding deferred tax assets)		13,094,867		2,959,042		18,291		1,247,310		17,319,510		(148,413	)		17,171,097
Deferred tax assets								9,011		9,011					9,011
Investments accounted through equity method
Associates		36,489		—		—		64,332		100,821					100,821
Joint Ventures		—		203,443		—		61,407		264,850					264,850
Segment liabilities		1,049,313		438,864		22,237		7,409,710		8,920,124					8,920,124
Segment liabilities (excluding deferred tax liabilities)		1,049,313		438,864		22,237		5,623,795		7,134,209					7,134,209
Deferred tax liabilities								1,785,915		1,785,915					1,785,915
Geographical information on non-current assets
Chile		8,540,801		491,283		17,008		398,820		9,447,912		(16,294	)		9,431,618
Foreign countries		2,742,416		1,190,257		—		40,896		3,973,569					3,973,569
Total non-current assets		11,283,217		1,681,540		17,008		439,716		13,421,481		(16,294	)		13,405,187

114

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

The following table shows information related to cash flows by segments which is presented as complementary information as required by our regulatory entities:

Nine-months period ended September 30, 2023	Pulp ThU.S.$			Wood products ThU.S.$			Others ThU.S.$			Corporate ThU.S.$			Subtotal ThU.S.$			Elimination ThU.S.$		Total ThU.S.$
Segment cash flows
Cash flows from (used in) operating activities		141,611			419,209			(334	)		(139,581	)		420,905			—		420,905
Cash flows (used in) investing activities		(876,422	)		(90,088	)		(2,693	)		(67,527	)		(1,036,730	)		—		(1,036,730	)
Cash flows from (used in) financing activities		610,804			15,328			(5,576	)		44,373			664,929			—		664,929
Net increase (decrease) in cash and cash equivalents		(124,007	)		344,449			(8,603	)		(162,735	)		49,104			—		49,104

Nine-months period ended September 30, 2022	Pulp ThU.S.$			Wood products ThU.S.$			Others ThU.S.$			Corporate ThU.S.$			Subtotal ThU.S.$			Elimination ThU.S.$		Total ThU.S.$
Segment cash flows
Cash flows from (used in) operating activities		852,795			716,123			8,463			(197,651	)		1,379,730			—		1,379,730
Cash flows (used in) investing activities		(983,901	)		(82,178	)		(11,931	)		(22,351	)		(1,100,361	)		—		(1,100,361	)
Cash flows from (used in) financing activities		(250,907	)		(17,198	)		(116	)		(57,733	)		(325,954	)		—		(325,954	)
Net increase (decrease) in cash and cash equivalents		(382,013	)		616,747			(3,584	)		(277,735	)		(46,585	)		—		(46,585	)

Information required by geographic area:

	Geographical area
2023	Local country		Foreign country
	Chile		Argentina		Brazil		USA/Canada		Uruguay		Mexico		Total
Disclosure of geographical areas	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Revenues from sale of goods		2,156,588		425,451		450,663		814,164		339,975		154,711		4,341,552
Revenues from rendering of services		60,140		—		14,712		—		26,884		2		101,738
Revenues as of September 30, 2023		2,216,728		425,451		465,375		814,164		366,859		154,713		4,443,290
Non-current Assets at 09-30-2023 other than deferred tax		9,355,942		593,411		1,224,445		685,136		1,664,616		155,230		13,678,780

	Geographical area
2022	Local country		Foreign country
	Chile		Argentina		Brazil		USA/Canada		Uruguay		Mexico		Total
Disclosure of geographical areas	ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$		ThU.S.$
Revenues from sale of goods		2,882,860		435,011		500,459		1,012,641		429,147		168,547		5,428,665
Revenues from rendering of services		55,315		—		—		—		24,072		—		79,387
Revenues as of September 30, 2022		2,938,175		435,011		500,459		1,012,641		453,219		168,547		5,508,052
Non-current Assets at 12-31-2022 other than deferred tax		9,426,583		548,528		906,174		721,824		1,664,974		128,093		13,396,176

115

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 25. OTHER NON-FINANCIAL ASSETS AND NON-FINANCIAL LIABILITIES

	09-30-2023		12-31-2022
Current non-financial assets	ThU.S.$		ThU.S.$
Roads to amortize, current		57,082		56,171
Prepayment to amortize (insurance and others)		32,129		17,474
Recoverable taxes (related to purchases)		155,673		126,368
Other current non-financial assets		7,175		6,046
Total		252,059		206,059

	09-30-2023		12-31-2022
Non-current non-financial assets	ThU.S.$		ThU.S.$
Roads to amortize, non-current		71,867		71,094
Guarantee values		3,526		4,400
Recoverable taxes		8,443		6,363
Other non-current non-financial assets		23,271		10,657
Total		107,107		92,514

	09-30-2023		12-31-2022
Current non-financial liabilities	ThU.S.$		ThU.S.$
Provision of minimum dividend (1)		2,199		189,375
ICMS, PIS-COFINS and other tax payables—Brazil		25,935		32,145
Other tax payable		18,108		14,186
Other Current non-financial liabilities		7,137		7,272
Total		53,379		242,978

(1) Correspond mainly to the minimum dividend provision of the parent company (see Note 26).

	09-30-2023		12-31-2022
Non-current non-financial liabilities	ThU.S.$		ThU.S.$
ICMS and other tax payable - Brazil		59,802		66,736
Other non-current non-financial liabilities		5,182		3,136
Total		64,984		69,872

NOTE 26. DISTRIBUTABLE NET PROFIT AND EARNINGS PER SHARE

Distributable net profit

As a general policy, the Board of Directors of Arauco agreed that the net profit to be distributed as dividend is determined based on realized net gains/(losses) of any relevant variations in the value of unrealized assets and liabilities, which are excluded from the calculation of net profit during the period such changes are made.

As a result of the foregoing, for purposes of determining the distributable net profit of the Company, which is the same considered for calculating the minimum dividend required and additional dividend, the following unrealized gains/losses are excluded from the net profit for the year:

1) Unrealized gains/losses relating to the fair value recorded for forestry assets under IAS 41, adding them back to distributable net profit when they are realized through sale or disposed of by other means.

2) Those generated through the acquisition of entities. These results will be added back to net profit when they are realized through sale.

The deferred taxes associated with the amounts described in 1) and 2) above are also excluded.

116

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

As of December 31, 2022 Arauco in the financial statements recognized the balance of minimum dividend provision of the parent company for ThU.S.$ 186,903. In December 2022 Arauco paid a provisional dividend for ThU.S.$ 183,971 decreasing the minimum dividend provision.

In 2023, the amount of ThU.S.$ 92,719 presented in the interim consolidated statement of changes in equity was provisioned, corresponding to an additional and extraordinary dividend of 10% to be paid for the profits of the parent company of 2022.

For the profits of the fiscal year 2022 and for subsequent fiscal years, an amount equivalent to the 40% of the distributable net income for each fiscal year will be distributed as dividends. Nevertheless, the Board of Directors may decide to distribute and pay dividends to the shareholders, to the extent that it expects the year to finalize with positive results and that the Company’s liquidity allows such distribution and payment.

The following table details the adjustments made for the determination of distributable net profit as of September 30, 2023 and 2022:

	Distributable net profit
	09-30-2023 ThU.S.$			09-30-2022 ThU.S.$
Net profit attributable to parent company		(274,341	)		881,783
Adjustments:
Biological assets
Unrealized gains (losses)		(167,174	)		(193,969	)
Realized gains (losses)		269,850			250,988
Deferred income taxes		(29,505	)		(18,944	)
Total adjustments		73,171			38,075
Distributable net profit		(201,170	)		919,858
40%		—			367,943

Due to the fact that the distributable net profit as of September 30, 2023 resulted in a loss, no amount related to the 2023 period was provisioned on that date.

Basic and diluted earnings per share

Basic and diluted earnings per share are calculated by dividing the profit or loss attributable to ordinary equity holders of parent by the weighted average number of ordinary shares outstanding. Arauco does not have any shares with potential dilutive effect.

	January - September					July - September
	2023			2022		2023			2022
	ThU.S.$			ThU.S.$		ThU.S.$			ThU.S.$
Profit or loss attributable to ordinary equity holder of parent		(274,341	)		881,783		(173,026	)		248,906
Weighted average of number of shares		120,474,350			120,474,350		120,474,350			120,474,350
Basic and diluted earnings per share (in U.S.$ per share)		(2.2771735	)		7.3192592		(1.4362061	)		2.0660497

117

CELULOSA ARAUCO Y CONSTITUCION S.A. AND SUBSIDIARIES

Unaudited interim consolidated financial statements

September 30, 2023

Amounts in thousands of U.S. dollars, except as indicated

NOTE 27. SUBSEQUENT EVENTS

The authorization for the issuance and publication of these interim consolidated financial statements for the nine-months period ended September 30, 2023, was approved by the Board of Directors of Arauco at the Extraordinary Meeting No. 699 held on November 7, 2023.

Subsequent to September 30, 2023, and as of the date of issuance of these interim consolidated financial statements, there have been no additional events, that could materially affect the presentation of these interim consolidated financial statements.

118

Press Release 3Q 2023 Sengés, Paraná State, Brazil

3Q 2023 RESULTS REVENUES US$1,594.9 million NET INCOME Highlights -US$173.0 million 3Q 2023 ADJUSTED EBITDA US$242.6 million NET DEBT TO LTM Adj. EBITDA 6.00x CAPEX For more details on ARAUCO´s financial statements please visit www.cmfchile.cl or www.arauco.com US$315.0 million Readers are referred to the documents filed by ARAUCO with the United States Securities and Exchange Commission, specifically the most recent filing on Form 20-F that identifies important risk factors that could cause actual results to differ from those contained in the forward-looking statements. All forward-looking statements are based on information available to ARAUCO on the date hereof and ARAUCO does not assume any obligation to update such statements. References herein to “U.S.$” are to United States dollars. Discrepancies in any table between totals and sums of the amounts listed are due to rounding. This report is unaudited.

3Q 2023 RESULTS Overview ARAUCO´s net income for the third quarter of 2023 was -US$173.0 million, a decrease of US$125.9 million compared to the second quarter of 2023. This is mostly explained by an increase in Impairment provision property, plant and equipment and others, due to the indefinite stop of our Licancel mill (a total of US$75.3 million impairment before tax was accounted in this quarter). Our Adjusted EBITDA was 7.1% higher than the second quarter of 2023, totaling US$242.6 million. Net Financial Debt increased by US$56.3 million or 0.9% and our Net Debt/LTM EBITDA ended up in 6.00x, an increase when compared to the 4.59x reached during the second quarter of 2023. In US$ Million YTD YTD Q3 2023 Q2 2023 Q3 2022 QoQ YoY YoY YTD 2023 2022 Revenue 1,594.9 1,408.9 1,879.4 13.2% -15.1% 4,443.3 5,508.1 -19.3% Net income (173.0) (47.1) 248.9 267.2% 169.5% (274.4) 881.8 -131.1% Adjusted EBITDA 242.6 226.6 553.0 7.1% -56.1% 657.2 1,779.2 -63.1% Adjusted EBITDA Margin 15.2% 16.1% 29.4% -5.4% -48.3% 14.8% 32.3% -54.2% LTM Adj. EBITDA 1,044.8 1,355.2 2,419.6 -22.9% -56.8% 1,044.8 2,419.6 -56.8% CAPEX 315.0 374.4 387.2 -15.9% -18.7% 1,024.0 1,207.3 -15.2% Net Financial Debt 6,270.8 6,214.5 4,568.9 0.9% 37.2% 6,270.8 4,568.9 37.2% Net Financial Debt / 6.00x 4.59x 1.89x 30.9% 217.9% 6.00x 1.89x 217.9% LTM Adj. EBITDA Adjusted EBITDA and EBITDA Margin (in US$ Million)

3Q 2023 RESULTS Income Statement Revenues ARAUCO’s revenues reached US$1,594.9 million in the third quarter of 2023, an increase of 13.2% when compared to the previous quarter. This variation is mostly explained by higher revenues in our pulp division, due to an increase of 43.1% in sales volume, offset by a 7.0% decrease in average prices. On the other hand, revenues for our wood products division were 0.8% lower, due to a 1.9% and 0.4% decrease in average prices and sales volume, respectively. The following table shows a breakdown of our revenues by business segment: In US$ Million Q3 2023 Q2 2023Q3 2022QoQ YoY Pulp779.3586.8763.832.8%2.0% Wood Products815.4822.21,115.5-0.8%-26.9% Total1,594.91,408.91,879.413.2%-15.1% Revenue’s Breakdown by business segment

3Q 2023 RESULTS Cost of sales Increased by 8.2% or US$97.5 million compared to the second quarter of 2023. This is mostly explained by increases in Timber and Forestry labor costs due to higher sales volume. In US$ Million Q3 2023 Q2 2023Q3 2022QoQ YoY Timber308.4247.5255.724.6%20.6% Forestry labor costs192.4171.5165.912.2%16.0% Depreciation and amortization145.3142.597.22.0%49.6% Depreciation for right of use9.25.610.264.7%-9.4% Maintenance costs88.193.768.6-6.0%28.4% Chemical costs171.6165.1183.93.9%-6.7% Sawmill services34.931.630.510.2%14.4% Other raw materials and indirect 137.8136.8128.10.7%7.5% costs Energy and fuel73.570.568.34.3%7.6% Cost of electricity17.518.812.3-6.8%42.1% Wage, salaries and severance 114.4111.9103.02.2%11.1% indemnities Cost of Sales1,293.21,195.61,123.68.2%15.1% Administrative expenses Decreased by 1.2% or US$1.9 million, when compared to the previous quarter, mostly due to a decrease in Computer services and Property taxes, patents and municipality rights, partially offset by an increase in Insurance. In US$ MillionQ3 2023Q2 2023Q3 2022QoQ YoY Wages, salaries and severance 63.459.864.56.0%-1.7% indemnities Marketing, advertising, promotion 4.33.24.033.8%9.2% and publications expenses Insurance17.312.36.340.4%175.0% Depreciation and amortization11.212.68.1-10.7%38.3% Depreciation for the right of use1.91.91.91.0%1.5% Computer services8.813.77.8-35.7%12.7% Lease rentals (offices, warehouses 2.21.81.522.4%44.9% and machinery) Donations, contributions, 2.22.82.5-20.2%-10.7% scholarships Fees (legal and technical advisories)8.89.99.4-11.3%-6.4% Property taxes, patents and 7.911.86.9-33.2%14.4% municipality rights Other administration expenses31.231.433.8-0.6%-7.9% Administrative Expenses159.3161.2146.7-1.2%8.6%

3Q 2023 RESULTS Distribution costs Distribution costs increased by 7.1%, or US$12.3 million mostly due to an increase of US$12.2 million or 9.4% in freight costs, mainly explained by higher sales volume in our pulp division. In US$ Million Q3 2023 Q2 2023 Q3 2022 QoQ YoY Commissions 4.5 3.4 3.0 34.7% 52.9% Insurance 1.5 2.3 1.3 -32.9% 21.0% Other selling costs 4.6 4.2 5.7 8.1% -20.0% Port services 16.4 16.0 16.7 2.9% -1.4% Freight 141.9 129.8 193.4 9.4% -26.6% Depreciation for the right of use 0.3 0.3 1.1 1.4% -74.4% Other shipping and freight costs 15.2 16.3 19.1 -6.9% -20.6% Distribution Costs 184.5 172.2 240.2 7.1% -23.2% Other income Decreased by US$82.3 million mostly due to a decrease in Net income from insurance compensation mainly caused by the US$72.0 million compensation from insurance companies accounted for the previous quarter related to our Valdivia mill. In US$ Million Q3 2023 Q2 2023 Q3 2022 QoQ YoY Gain from changes in fair value of biological assets 58.5 56.1 63.4 4.3% -7.8% Net income from insurance compensation 6.5 73.9 0.5 -91.3% 1103.7% Leases received 1.8 6.1 0.2 -71.1% 725.9% Gains on sales of assets 5.1 2.5 4.7 106.6% 9.9% Tax recovery credit 0.5 3.7 - -86.7% - Other operating results 4.6 16.9 4.0 -72.9% 15.3% Other Income 76.9 159.2 72.8 -51.7% 5.6%

3Q 2023 RESULTS Other expenses Increased by 278.3% or US$107.5 million when compared to the second quarter of 2023. This is mostly explained by an increase in Impairment provision property, plant and equipment and others, due to the indefinite stop of our Licancel mill (a total of US$75.3 million before tax impairment was accounted in this quarter), as well as the permanent shut down of our Horcones II sawmill in Chile. In addition, there was a decrease in relation to loss of forests due to the US$22.8 million gain accounted last quarter related to a provision for the insurance claim. In US$ Million Q3 2023 Q2 2023Q3 2022QoQ YoY Legal payments3.04.43.1-42.4%-1.8% Impairment provision property, plant and84.02.05.0-31.8%1574.8% equipment and others Operating expenses related to plant stoppages41.640.847.74083.2%-12.9% Project expenses2.52.65.92.0%-57.9% Loss (gain) from asset sales5.33.04.2-6.6%26.9% Loss and repair of assets0.00.10.075.4%-42.0% Loss of forests2.3(22.8)1.8-35.6%26.9% Other taxes4.94.96.7-110.1%-27.2% Other expenses (donations, repayments insurance)2.53.64.4-31.1%-43.0% Other expenses146.138.678.8278.3%85.5% Foreign exchange differences Showed a net loss of US$43.7 million, US$23.8 million higher than the second quarter. The main significant effects are given by the variation of local currencies in the countries where we have industrial operations, especially Argentina. Income tax In the third quarter, income tax reached US$52.1 million, a US$25.5 million increase when compared with the US$26.5 million accounted on the previous quarter.

3Q 2023 RESULTS Adjusted EBITDA Adjusted EBITDA for the third quarter of 2023 was US$242.6 million, a 7.1% or US$16.1 million increase when compared to the previous quarter. There was an increase of 43.7% in the Adjusted EBITDA of our pulp business segment, mostly associated to an increase in sales volume. In the Adjusted EBITDA of our wood products business segment, there was a decrease of 12.6%. In U.S. Million Q3 2023 Q2 2023Q3 2022QoQ YoY Net Income(173.0)(47.1)248.9267.2%169.5% Financial costs 100.192.442.78.3%134.5% Financial income (33.1)(28.2)(21.0)17.5%57.6% Income tax (52.1)(26.5)70.796.3%173.7% EBIT (158.1)(9.4)341.21581.7%146.3% Depreciation & amortization 173.5172.3128.60.7%34.9% EBITDA 15.4162.9469.8-90.6%-96.7% Fair value cost of timber harvested 156.1121.3121.428.7%28.7% Gain from changes in fair value of biological assets(58.5)(56.1)(63.4)4.3%-7.8% Exchange rate differences 43.719.918.9119.6%131.2% Others (*) 85.9(21.5)6.4-499.4%1248.6% Adjusted EBITDA242.6226.6553.07.1%-56.1% (*) Includes provision from forestry fires and provisions from property, plants and equipment, and others. Adjusted EBITDA variation by business segment (in US$ million)

3Q 2023 RESULTS Pulp Adjusted EBITDA The Adjusted EBITDA for our pulp business segment reached US$144.3 million during this quarter, which translates to a 43.7% or US$43.8 million increase compared to the second quarter of 2023. Pulp EBITDA Mg reached 18.5%, 1.4% higher than the previous quarter. Wood Products Adjusted EBITDA The Adjusted EBITDA for our wood products business was US$133.1 million during this quarter, which translates to a 12.6% or US$19.2 million decrease, compared to the previous quarter. Wood products EBITDA Mg was 16.3%, 2.2% lower than the previous quarter.

3Q 2023 RESULTS Pulp Business The quarter began with a weak market though it improved throughout, despite higher supply and spot offers seen in several markets. Additionally, total world inventories began to drop as the quarter passed, which helped strengthen the demand for pulp. In China, the market looked better during the third quarter, with an increase in demand for pulp and paper. The inventories of some paper segments decreased, causing mills to increase their operating rates and announce price increases for their products thus improving margins. Additionally, pulp inventories in Chinese ports decreased, despite the increase in pulp supply due to new capacities. Long fiber pulp prices started the quarter with a slight decline, however afterwards increased throughout the remaining. Regarding short fiber prices, they increased throughout the entire quarter. In Europe, the demand for paper remained weak with small signs of recovery towards the end of September. Several paper mills decreased their operating rate due to the summer season in the region, whilst still having positive margins due to the low cost of raw materials. Regarding the pulp supply, at the beginning of the quarter there was a lot of spot supply from other pulp producers, which were quite aggressive. However, towards the end of the quarter, these volumes began to decline as many producers started diverting volumes to China, due to higher prices in that market. Short fiber prices varied both upward and downward, finishing September with the same levels previously seen in June. The dissolving pulp market during the third quarter was stronger due to an improvement in the viscose market. Viscose mills began the quarter with low inventories and increased their operating rate throughout the quarter allowing prices to rise in dissolving pulp towards the end of the period. Production in the third quarter of 2023 increased by 282.6 thousand tons (34.7%) compared with last quarter, with Arauco´s Line 3 increasing its production by 92 thousand tons (49,5% increase). Other production improvements came from Nueva Aldea, Valdivia, and Montes del Plata mills. This increase was partially offset by the indefinite shut down of the Licancel mill, which stopped its operations during August. Sales volume increased by 349 thousand tons quarter over quarter, representing a 43% improvement compared to the second quarter of this year. Production and Sales Volume (In thousand tonnes)

3Q 2023 RESULTS Wood Products Business Panels Average prices and sales volume decreased 5.1% and 0.4% respectively during the third quarter of 2023. The US market had a slow demand with a downward trend in prices, along with continuous high supply in most products throughout the quarter. Increases in exports from Brazil to the rest of the region continued to be seen, especially in MDF. In South America, the effect of low demand persisted due to a scenario of high inflation, higher interest rates, currency devaluation against the dollar, high inventories, and political uncertainty in some countries. Sawn timber Average prices increased 5.5%, partially offset by a 0.4% decrease in sales volume. China was affected by low economic growth, lower demand in both construction and furniture sectors and lower prices from Rusia and Europe. High inventories, high interest rates and geopolitical uncertainty continued to affect Asia and Europe. In the US, the third quarter had an improvement in demand for Remanufactured Wood Products although volumes and prices are still lower than in 2022 as a result of the effects of inflation, rate increases, high inventories in the logistics chain and higher supply from Asia and Latin America. Plywood Sales volumes increased 12.7% offset by a 5.6% decrease in average prices. Lower demand continued for Plywood when compared to the same period of the previous year, mainly explained by the effect of higher interest rates in America and Oceania, which affected the construction and remodeling sectors. Geopolitical issues have made a complicated scenario in Europe, impacting demand and costs, causing an oversupply in Latin America and Europe.

3Q 2023 RESULTS Capital During this quarter, capital expenditures (*) were US$315.0 million, US$59.5 million lower than the previous quarter. Expenditures US$ Million Q3 2023 Q2 2023Q3 2022YTD 2023YTD 2022 Cash flow used to obtain control of subsidiaries or other businesses----- Cash flow used to purchase in associates(16.2)--(16.2)(0.1) Other cash payments to acquire interests in joint ventures----- Purchase and sale of property, plant and equipment(192.6)(266.1)(326.0)(682.4)(993.6) Purchase and sale of intangible assets(1.4)(1.4)(1.5)(4.2)(3.4) Purchase of other long-term assets(104.7)(107.0)(59.7)(321.1)(210.1) Total CAPEX (*)(315.0)(374.4)(387.2)(1,024.0)(1,207.3) (*) On a cash basis. Capital Expenditures (In US$ Million)

3Q 2023 RESULTS During the third quarter, Free Cash Flow increased by US$531.7 million compared Freeto the second quarter of 2023, with outflows of US$122.9 million. Cash from Operations increased US$226.1 million mostly due to Working Capital Variation and Income tax received, and Cash used in financing activities decreased US$270.5 CashFlowmostly due to the dividends paid in May 2023. US$ MillionQ3 2023Q2 2023Q3 2022 Adjusted EBITDA 242.6226.6553.0 Working Capital Variation 15.9(84.1)(57.8) Interest paid and received (20.2)(69.7)(21.2) Income tax received (paid/refunded) 47.4(47.7)(64.8) Other cash inflows (outflows) (14.1)20.524.7 Cash from Operations 271.645.5434.0 Capex (*) (315.0)(374.4)(387.2) Proceeds from investment activities 5.11.23.1 Other inflows of cash, net (1.7)(21.2)7.4 Cash from (used in) Investment Activities (311.5)(394.5)(376.8) Dividends paid -(282.7)- Other inflows of cash, net (31.7)(19.6)(16.3) Proceeds from issue of shares --- Cash from (used in) Financing Activities – Net of Proceeds and Repayments (31.7)(302.3)(16.3) Effect of exchange rate changes on cash and cash equivalents (51.3)(3.4)(22.2) Free Cash Flow (122.9)(654.6)18.7 (*) On a cash basis. Net Debt Variation Q2 2023 – Q3 2023 (in US$ million) 3Q

2023 RESULTS Cash Our cash position was US$656.5 million at the end of the third quarter, which translates to a 14.1% decrease, equivalent to US$108.1 million, when compared to the end of the second quarter of 2023. This was mostly due to a negative free cash flow during the quarter. Additionally, to our cash position, the Company has a committed revolving credit facility for a total amount of US$375 million of which US$225 million were withdrawn in June 2023. This facility is due in February 2025.

3Q 2023 RESULTS Financial Debt ARAUCO’s total financial debt as of September 30, 2023 was US$6,927.4 million, an decrease of 0.7% or US$51.7 million when compared to June 30, 2023. Our consolidated net financial debt increased 0.9% or US$56.3 million when compared with June 2023. Debt by Currency Debt by Instrument UF is a Chilean monetary unit indexed to inflation. (2) Swapped to USD Our leverage, measured as Net Financial Debt/LTM Adjusted EBITDA was 6.00x, which compares to the 4.59x in the second quarter. This increase is mainly explained by a 22.9% decrease in LTM Adjusted EBITDA and a 0.9% increase in net financial debt. Net Financial Debt and Leverage (In US$ Million)

3Q 2023 RESULTS As of September 2023, short term bank obligations (which includes accrued interest) sum up US$465.4 million. Bank obligations include the following maturities: US$439.3 million in bank loans and US$26.1 million in leasing. Short term bond obligations sum up US$81.3 million. These obligations include amortizations of local bonds, and interest payments of our USD-denominated bonds. Debt Amortization Profile as of September 30, 2023 (In US$ Million)

3Q 2023 RESULTS Third Quarter Subsequent EventsandNews Licancel Mill, Chile Licancel Pulp Mill, located in Licantén, Maule Region, had to stop its operations completely on August 21st, 2023 -for the second time this year as result of the overflow of the Mataquito River caused by the severe weather conditions that affected the central-southern zone of Chile. Following a thorough analysis of the consequences and damages resulting from this event, together with the effect of increased costs and the impact of forest fires that have significantly reduced the availability of wood at an industrial level, it has been necessary to take the regrettable decision to indefinitely suspend the pulp manufacturing process at the mill. As a consequence of this decision and applying the customary procedures for determining impairments or losses in accordance with IFRS, the Company recorded an impairment provision for assets associated with the Licancel Pulp Mill in its Q3 2023 financial statements, for a net amount of deferred taxes of approximately US$ 55 million, notwithstanding the fact that detailed analyses are being conducted to determine the final figure. The Licancel Pulp Mill was built in 1992 and was acquired by Arauco in September 1999. The Pulp Mill has an installed annual production capacity of approximately 160,000 tons of unbleached pine pulp, which corresponds to 3% of Arauco’s total annual pulp production capacity. Furthermore, the Licancel Pulp Mill represented 1.7% of Arauco’s consolidated revenues in 2022. This decision resulted in the layoff of approximately 160 direct employees. Arauco Mill Line 3, Chile Update Arauco´s Line 3 sales volumes have been increasing within the past months along with positive feedback from our clients. Production has continued increasing as expected with no significant issues, reaching approximately 503.6 thousand tones as of September 30th 2023 of which, 84.0% or 423.2 thousand tones were prime pulp. We expect to reach full capacity in the first quarter of 2024 in line with our scheduled ramp-up.

3Q 2023 RESULTS ESG Photovoltaic Power Station, Brazil We have just taken another important step towards a greener and more efficient future. Our Jaguariaíva (PR) unit was chosen for a pilot photovoltaic power station project, considering the installation of 811 photovoltaic panels of 555 kWp in an area of approximately 1,700 m². Last year, Arauco Brazil reached a milestone in our energy matrix, with 67% of the energy consumed coming from the burning of biomass, more than 30% of renewable electricity purchased and only 2.2% coming from non-renewable fuels. This achievement demonstrates our commitment to reducing its carbon footprint and its reliance on non-renewable sources. Now, with our photovoltaic plant, we have incorporated into this matrix another sustainable, economical clean energy, in a luminous journey to preserve natural resources and contribute more and more to the health of the planet.

3Q 2023 RESULTS CONFERENCE CALL Wednesday, November 15, 2023 10:00 Santiago Time 09:00 Eastern Time (New York) Dial in: +1 (844) 450 3845 from the US +56 (44) 208 1274 from Chile +55 (11) 3181 8565 from Brazil UPCOMING +1 (412) 317 6368 from other countries EVENTS For further information, please contact: Marcelo Bennett Treasurer marcelo.bennett@arauco.com Phone: +56 2 2461 7309 Constanza Vasquez Investor Relations constanza.vasquez@arauco.com Phone: +56 2 2461 7434 investor_relations@arauco.cl

Financial Statements Income Statement In US$ Million Q3 2023 Q2 2023Q3 2022YTD 2023YTD 2022 Revenues1,594.91,408.91,879.44,443.35,508.1 Cost of sales(1,293.2)(1,195.6)(1,123.6)(3,522.8)(3,222.6) Gross profit301.7213.3755.7920.52,285.4 Other income76.9159.272.8311.7244.6 Distribution costs(184.5)(172.2)(240.2)(517.6)(729.8) Administrative expenses(159.3)(161.2)(146.7)(470.4)(445.9) Other expenses(146.1)(38.6)(78.8)(393.7)(165.5) Financial income33.128.221.084.149.8 Financial costs(100.1)(92.4)(42.7)(272.7)(135.9) Share of profit (loss) of associates and joint ventures accounted for using equity(3.2)10.1(2.7)14.841.5 method Other income (loss)0.00.00.00.00.0 Exchange rate differences(43.7)(19.9)(18.9)(87.3)(40.3) Income before income tax(225.1)(73.6)319.5(410.6)1,104.0 Income tax52.126.5(70.7)136.2(222.2) Net income(173.0)(47.1)248.9(274.4)881.8 Profit attributable to parent company(173.0)(47.2)248.9(274.3)881.8 Profit attributable to non-parent company0.00.0(0.0)(0.1)0.0

3Q 2023 RESULTS Balance Sheet In US$ Million 30-09-2023 30-06-202330-09-2022 Cash and cash equivalents 656.5764.6929.6
Other financial current assets 42.427.634.0 Other current non-financial assets 252.1293.8225.6 Trade and other receivables-net
879.8818.2909.5 Related party receivables 7.56.78.0 Inventories 1,466.91,569.31,365.8 Biological assets, current 420.2361.8362.3
Tax assets 102.2185.2157.2 Non-Current Assets classified as held for sale 0.20.21.3 Total Current Assets 3,827.94,027.43,993.2
Other non-current financial assets 20.2115.210.2 Other non-current and non-financial assets 107.1120.772.1 Non-current receivables
98.587.322.3 Investments accounted through equity method 396.8397.0319.3 Intangible assets 65.968.575.7 Goodwill 55.456.058.1
Property, plant and equipment 10,139.310,092.59,779.6 Biological assets, non-current 2,795.52,858.53,000.9 Deferred tax assets
11.719.48.5 Total Non-Current Assets 13,690.513,815.113,346.6 TOTAL ASSETS 17,518.417,842.517,339.8 Other financial
liabilities, current 1,369.2827.9369.3 Trade and other payables 663.9682.5700.0 Related party payables 12.417.82.9 Other provisions,
current 5.77.48.2 Tax liabilities 22.28.756.0 Current provision for employee benefits 7.68.56.2 Other non-financial liabilities, current
53.456.3428.7 Total Current Liabilities 2,134.41,609.21,571.4 Other non-current financial liabilities 5,723.66,203.15,401.9 Tra
de and Other payables non-current 26.728.82.4 Other provisions, non-current 29.730.731.5 Deferred tax liabilities
1,538.11,657.31,845.2 Non-current provision for employee benefits 85.798.672.3 Other non-financial liabilities, non-current
65.071.671.3 Total Non-Current Liabilities 7,468.88,090.17,424.6 Non-parent participation 5.75.67.0 Net equity attributable to parent
company 7,909.48,137.68,336.9 TOTAL LIABILITIES AND EQUITY 17,518.417,842.517,339.8

3Q 2023 RESULTS Cash Flow Statement US$ Million Q3 2023 Q2 2023 Q3 2022 YTD 2023 YTD 2022 Receipts from sales of goods and rendering of 1,540.8 1,433.7 2,077.2 4,605.8 5,943.0 services Other cash receipts (payments) 82.6 178.4 66.5 349.3 238.0 Payments of suppliers and personnel (less) (1,388.2) (1,449.6) (1,626.4) (4,409.7) (4,552.2) Interest paid and received (20.2) (69.7) (21.2) (108.7) (127.7) Income tax paid 47.4 (47.7) (64.8) (27.4) (127.6) Other (outflows) inflows of cash, net 0.2 0.4 1.8 0.7 3.6 Net Cash Provided by (Used in) Operating 271.6 45.5 434.0 420.9 1,379.7 Activities Capital Expenditures (315.0) (374.4) (387.2) (1,024.0) (1,207.3) Other investment cash flows 3.5 (20.1) 10.4 (12.8) 106.9 Net Cash Provided by (Used in) Investing Activities (311.5) (394.5) (376.8) (1,036.7) (1,100.4) Proceeds from borrowings 324.7 816.7 47.3 1,731.7 214.7 Repayments of borrowings (309.9) (270.3) (38.1) (719.1) (299.4) Dividends paid 0.0 (282.7) 0.0 (282.7) (192.3) Other inflows of cash, net (31.7) (19.6) (16.3) (65.0) (48.9) Proceeds from Issue of Shares 0.0 0.0 0.0 0.0 0.0 Net Cash Provided by (Used in) Financing Activities (17.0) 244.1 (7.2) 664.9 (326.0) Total Cash Inflow (Outflow) of the Period (56.8) (104.8) 50.1 49.1 (46.6) Effect of exchange rate changes on cash and cash (51.3) (3.4) (22.2) (59.8) (34.9) equivalents Cash and Cash equivalents at beginning of the 764.6 872.8 901.7 667.2 1,011.1 period Cash and Cash Equivalents at end of the Period 656.5 764.6 929.6 656.5 929.6

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Celulosa Arauco y Constitución S.A.
	(Registrant)
	By:	/s/ Matías Domeyko Cassel
Date: November 22, 2023	Name:	Matías Domeyko Cassel
	Title:	Chief Executive Officer