10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended: March 31, 2020

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from        to        

Commission File Number: 1-14066

SOUTHERN COPPER CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	13-3849074
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1440 East Missouri Avenue Suite 160 Phoenix, AZ	85014
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (602) 264-1375

Securities registered pursuant to Section 12(b) of the Act:

Title of each class:	Trading Symbol	Name of each exchange on which registered:
Common stock, par value $0.01 per share	SCCO	New York Stock Exchange Lima Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ⌧ No ◻

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ⌧ No ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	⌧	Accelerated filer	◻
Non-accelerated filer	◻	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ⌧

As of April 30, 2020 there were outstanding 773,058,869 shares of Southern Copper Corporation common stock, par value $0.01 per share.

Southern Copper Corporation (“SCC”)

INDEX TO FORM 10-Q

		Page No.
Part I. Financial Information:
Item. 1	Condensed Consolidated Financial Statements (Unaudited)	3
	Condensed Consolidated Statements of Earnings for the three months ended March 31, 2020 and 2019	3
	Condensed Consolidated Statements of Comprehensive Income for the three months ended March 31, 2020 and 2019	4
	Condensed Consolidated Balance Sheets as of March 31, 2020 and December 31, 2019	5
	Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2020 and 2019	6
	Condensed Consolidated Statements of Changes in Equity for the three months ended March 31, 2020 and 2019	7
	Notes to Condensed Consolidated Financial Statements	8-34
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	35-51
Item 3.	Quantitative and Qualitative Disclosure about Market Risk	51-53
Item 4.	Controls and procedures	53
	Report of Independent Registered Public Accounting Firm	54
Part II. Other Information:		55
Item 1.	Legal Proceedings	55
Item 1A.	Risk Factors	55
Item 2.	Unregistered Sale of Equity Securities and Use of Proceeds	55
Item 4.	Mine Safety Disclosures	56
Item 6.	Exhibits	57-58
	List of Exhibits	59-61
	Signatures	62

2

PART I — FINANCIAL INFORMATION

Item 1. Condensed Consolidated Financial Statements

Southern Copper Corporation

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS

(Unaudited)

	Three Months Ended
	March 31,
	2020		2019
(in millions, except for per share amounts)
Net sales (including sales to related parties, see note 6)	$	1,719.7	$	1,753.4
Operating cost and expenses:
Cost of sales (exclusive of depreciation, amortization and depletion shown separately below)		955.8		844.1
Selling, general and administrative		29.1		28.5
Depreciation, amortization and depletion		192.9		181.6
Exploration		8.6		5.5
Total operating costs and expenses		1,186.4		1,059.7
Operating income		533.3		693.7
Interest expense		(101.9)		(90.1)
Capitalized interest		5.1		12.3
Other income (expense)		(7.4)		5.4
Interest income		7.8		3.7
Income before income taxes		436.9		625.0
Income taxes (including royalty taxes, see Note 5)		221.7		237.9
Net income before equity earnings of affiliate		215.2		387.1
Equity earnings (loss) of affiliate, net of income tax		1.0		2.1
Net income		216.2		389.2
Less: Net income attributable to the non-controlling interest		1.4		1.0
Net income attributable to SCC	$	214.8	$	388.2
Per common share amounts attributable to SCC:
Net earnings-basic and diluted	$	0.28	$	0.50
Weighted average shares outstanding-basic and diluted		773.1		773.0

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

3

Southern Copper Corporation

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended
	March 31,
	2020		2019
(in millions)
Net income and comprehensive income	$	216.2	$	389.2
Comprehensive income attributable to the non-controlling interest		1.4		1.0
Comprehensive income attributable to SCC	$	214.8	$	388.2

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

4

Southern Copper Corporation

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	March 31,		December 31,
	2020		2019
	(in millions)
ASSETS
Current assets:
Cash and cash equivalents	$	2,051.6	$	1,925.1
Short-term investments		40.7		80.7
Accounts receivable trade		709.7		832.9
Accounts receivable other (including related parties 2020- $35.3 and 2019 - $30)		80.0		78.9
Inventories		1,079.4		1,068.5
Prepaid taxes		157.9		172.4
Other current assets		20.4		26.2
Total current assets		4,139.7		4,184.7
Property and mine development, net		9,288.7		9,371.0
Ore stockpiles on leach pads		1,149.0		1,230.3
Intangible assets, net		148.5		148.4
Related parties receivable		59.0		59.5
Right-of-use assets		1,029.6		1,046.4
Deferred income tax		195.8		183.9
Equity method investment		112.9		111.9
Other non-current assets		88.9		71.3
Total assets	$	16,212.1	$	16,407.4
LIABILITIES
Current liabilities:
Current portion of long-term debt	$	400.0	$	399.8
Accounts payable (including related parties 2020- $81.6 and 2019- $86.4)		597.8		598.3
Accrued income taxes		16.5		116.3
Accrued workers’ participation		130.3		174.9
Accrued interest		140.9		96.0
Lease liabilities current		69.4		68.6
Other accrued liabilities		32.3		22.6
Total current liabilities		1,387.2		1,476.5
Long-term debt		6,541.8		6,541.0
Lease liabilities		960.1		977.8
Deferred income taxes		183.2		178.3
Non-current taxes payable		—		0.7
Other liabilities and reserves		111.1		112.6
Asset retirement obligation		265.5		262.3
Total non-current liabilities		8,061.7		8,072.7
Commitments and contingencies (Note 10)
STOCKHOLDERS’ EQUITY (NOTE 11)
Common stock par value $0.01; shares authorized, 2020 and 2019–2,000; shares issued, 2020 and 2019–884.6		8.8		8.8
Additional paid-in capital		3,410.5		3,424.9
Retained earnings		6,341.2		6,435.6
Accumulated other comprehensive income		(10.1)		(10.1)
Treasury stock, at cost, common shares		(3,034.2)		(3,048.9)
Total Southern Copper Corporation stockholders’ equity		6,716.2		6,810.3
Non-controlling interest		47.0		47.9
Total equity		6,763.2		6,858.2
Total liabilities and equity	$	16,212.1	$	16,407.4

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

5

Southern Copper Corporation

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Three Months Ended
	March 31,
(in millions)	2020		2019
OPERATING ACTIVITIES
Net income	$	216.2	$	389.2
Adjustments to reconcile net earnings to net cash provided from operating activities:
Depreciation, amortization and depletion		192.9		181.6
Equity earnings of affiliate, net of dividends received		(1.0)		(1.1)
(Gain) loss on foreign currency transaction effect		(28.0)		2.3
Provision for deferred income taxes		7.5		38.9
Other, net		6.9		3.6
Change in operating assets and liabilities:
Decrease (increase) in accounts receivable		123.2		(54.2)
Decrease (increase) in inventories		70.4		(7.5)
(Decrease) in accounts payable and accrued liabilities		(102.4)		(132.9)
(Increase) in other operating assets and liabilities		(10.6)		(48.6)
Net cash provided by operating activities		475.1		371.3
INVESTING ACTIVITIES
Capital expenditures		(101.0)		(173.1)
Proceeds from sale (purchase) of short-term investments, net		40.0		0.3
Other		0.4		—
Net cash used in investing activities		(60.6)		(172.8)
FINANCING ACTIVITIES
Cash dividends paid to common stockholders		(309.2)		(309.2)
SCC shareholder derivative lawsuit — received from AMC		—		36.5
SCC shareholder derivative lawsuit — dividend paid		—		(36.5)
Other, net		(2.2)		(0.1)
Net cash used in financing activities		(311.4)		(309.3)
Effect of exchange rate changes on cash and cash equivalents		23.4		3.2
Increase (decrease) in cash and cash equivalents		126.5		(107.6)
Cash and cash equivalents, at beginning of year		1,925.1		844.6
Cash and cash equivalents, at end of year	$	2,051.6	$	737.0

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

6

Southern Copper Corporation

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(Unaudited)

	Three Months Ended
	March 31,
(in millions)	2020		2019
TOTAL EQUITY, beginning of period	$	6,858.2	$	6,612.8
STOCKHOLDERS’ EQUITY, beginning of period		6,810.3		6,567.4
CAPITAL STOCK:
Balance at beginning and end of period:		8.8		8.8
ADDITIONAL PAID-IN CAPITAL:
Balance at beginning of period		3,424.9		3,393.7
Other activity of the period		(14.4)		6.7
Balance at end of period		3,410.5		3,400.4
TREASURY STOCK:
Southern Copper common shares
Balance at beginning and end of the period		(2,767.9)		(2,768.3)
Parent Company common shares
Balance at beginning of period		(281.0)		(251.3)
Other activity, including dividend, interest and foreign currency transaction effect		14.7		(6.4)
Balance at end of period		(266.3)		(257.7)
Treasury stock balance at end of period		(3,034.2)		(3,026.0)
RETAINED EARNINGS:
Balance at beginning of period		6,435.6		6,186.9
Net earnings		214.8		388.2
Dividends declared and paid, common stock, per share, 2020- $0.4, 2019– $0.4		(309.2)		(309.2)
SCC shareholder derivative lawsuit — received from AMC		—		36.5
SCC shareholder derivative lawsuit — dividend paid		—		(36.5)
Other activity of the period		—		(0.2)
Balance at end of period		6,341.2		6,265.7
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS):
Balance at beginning and end of period		(10.1)		(2.4)
STOCKHOLDERS’ EQUITY, end of period		6,716.2		6,646.5
NON-CONTROLLING INTEREST, beginning of period		47.9		45.4
Net earnings		1.4		1.0
Distributions paid		(2.3)		(0.1)
NON-CONTROLLING INTEREST, end of period		47.0		46.3
TOTAL EQUITY, end of period	$	6,763.2	$	6,692.8

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

7

Southern Copper Corporation

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 1— DESCRIPTION OF THE BUSINESS:

The Company is a majority-owned, indirect subsidiary of Grupo Mexico S.A.B. de C.V. (“Grupo Mexico”). At March 31, 2020, Grupo Mexico through its wholly-owned subsidiary Americas Mining Corporation (“AMC”) owned 88.9% of the Company’s capital stock. The condensed consolidated financial statements presented herein consist of the accounts of Southern Copper Corporation (“Southern Copper”, "SCC" or the “Company”), a Delaware corporation, and its subsidiaries. The Company is an integrated producer of copper and other minerals, and operates mining, smelting and refining facilities in Peru and Mexico. The Company conducts its primary operations in Peru through a registered branch (the "Peruvian Branch" or “Branch” or “SPCC Peru Branch”). The Peruvian Branch is not a corporation separate from the Company. The Company's Mexican operations are conducted through subsidiaries. The Company also conducts exploration activities in Argentina, Chile, Ecuador, Mexico and Peru.

In the opinion of the Company, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary to state fairly the Company’s financial position as of March 31, 2020 and the results of operations, comprehensive income, cash flows and changes in equity for the three months ended March 31, 2020 and 2019. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results to be expected for the full year. The December 31, 2019 balance sheet data was derived from audited financial statements, but does not include all disclosures required by generally accepted accounting principles in the United States of America (“GAAP”). The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements at December 31, 2019 and notes included in the Company’s 2019 annual report on Form 10-K.

COVID – 19 PANDEMIC

Since the World Health Organization (“WHO”) declared the COVID-19 virus outbreak as a global pandemic, all the countries where the Company operates and conducts exploration activities, as well as the countries where its main customers and suppliers are located have published health and safety rules and restrictions on individuals and business activities.

As of March 31, 2020, the Company‘s production facilities in Mexico and Peru were working at approximately 90% of their production capacity. The Company has developed a rigorous COVID-19 emergency protocol and approximately 40% of the workforce in Mexico, or 6,333 employees, were working on site under strict safety measures. The remaining workforce of 8,751 employees were working from home, including all individuals at high risk due to age and/or prior medical conditions. For the Peruvian operations, approximately 39% of the workforce, or 3,499 employees were working on site under strict safety measures, while the remaining 5,468 employees were working from home, due to the same reasons explained above. These employees numbers include the Company´s personnel and contractors.

The Company’s exploration activities in Argentina, Ecuador and Chile were also reduced and their drilling teams are on stand-by.

The financial reporting process and the information required to prepare the Company’s financial statements suffered no interruption and the financial statements were prepared without restrictions or difficulties.

The Company has activated its Corporate Crisis Committee as well as its Crisis Committees in Mexico and Peru to closely monitor the impact of the pandemic as well as to analyze and solve any issues that may arise without delay. As of March 31, 2020, there were no major delays in the supply of materials and services critical for the operations and sales. Also, shipments and collections have had no known major delays.

8

After completing the first stage of its capital programs at Buenavista in Mexico and Toquepala in Peru, the Company currently does not have major capital expenditures commitments (see Note 10 - Commitments and Contingencies). The Company paid the first tranche of its 2010 bonds of $400 million on April 15, 2020. The Company has no other major debt maturity until 2022.

At March 31, 2020 the Company has performed a qualitative analysis and has not identified any indicator of impairment. As the Company reported on its 2019 Annual report on Form 10-K, the results of its impairment sensitivity analysis showed projected discounted cash flows in excess of the carrying amounts of long lived assets by margins ranging from 1.2 to 4.8 times such carrying amount. This analysis included a stress test using a copper price assumption of $2.00 per pound and a molybdenum price assumption of $4.00 per pound. (Please see, Management´s Discussion and Analysis, Critical Policies and Estimates, Asset Impairments on the 2019 Form 10-K).

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13: “Financial Instruments – Credit Losses (Topic 326)”. This amendment includes disclosure requirements that are both quantitative and qualitative in nature. This amendment affects loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The main purpose of these disclosures is to (1) enable financial statement users to understand the credit risk inherent in a reporting entity’s portfolio, (2) understand how management monitors credit risk,

(3) provide insight as to how management develops estimates of expected credit losses, and (4) disclose the changes in these estimates during the reporting period. This ASU was adopted on January 1, 2020.

Prior to adopting this ASU, the Company applied an impairment methodology for accounts receivable arising from revenue transactions within the scope of ASC 606 that is consistent with the provision matrix model contemplated in the new standard. In addition, the new disclosure requirements do not apply to such trade receivables because the collection periods in all cases are less than one year. The Company’s accounts receivable from related parties under common control are excluded from the scope of this ASU. Accordingly, the adoption of this ASU did not have a material impact on the Company’s financial statements or related disclosures.

Long-term inventory-Ore stockpiles on leach pads:

On January 1, 2020, the Company aligned its capitalization method for its Peruvian and Mexican operations to capitalize based on the allocation of copper content recoverable between ore and leach material. In addition, the inventory consumption is now valued at the average unit cost, instead of the declining percentages of recovery method used previously. As a result of these changes, the value of capitalized material decreased by $48.8 million and the consumption increased by $10.3 million.

Management has evaluated ASC 250-10 and considered appropriate guidance to conclude that the above mentioned classified as a change in accounting estimate and therefore should affect accounting books prospectively. Management believes that this new method will result in a more appropriate value of this material.

9

NOTE 3 — SHORT-TERM INVESTMENTS:

Short-term investments were as follows ($ in millions):

	At March 31,			At December 31,
	2020			2019
Trading securities	$	40.1		$	80.0
Weighted average interest rate		1.9	%		2.0	%
Available-for-sale	$	0.6		$	0.7
Weighted average interest rate		0.7	%		0.7	%
Total	$	40.7		$	80.7

Trading securities consist of bonds issued by public companies and are publicly traded. Each financial instrument is independent of the others. The Company has the intention to sell these bonds in the short-term.

Available-for-sale investments consist of securities issued by public companies. Each security is independent of the others and at March 31, 2020 and December 31, 2019, included corporate bonds and asset and mortgage backed obligations. As of March 31, 2020 and December 31, 2019, gross unrealized gains and losses on available-for-sale securities were not material.

Related to these investments the Company earned interest, which was recorded as interest income in the condensed consolidated statement of earnings. Also, the Company redeemed some of these securities and recognized gains (losses) due to changes in fair value, which were recorded as other income (expense) in the condensed consolidated statement of earnings.

The following table summarizes the activity of these investments by category (in millions):

	Three months ended
	March 31,
	2020		2019
Trading:
Interest earned	$	0.7	$	0.1
Unrealized gain (loss) at the end of the period	$	(*)	$	(0.1)
Available-for-sale:
Interest earned		(*)		(*)
Investment redeemed	$	0.1	$	—

(*) Less than $0.1 million.

10

NOTE 4 — INVENTORIES:

Inventories were as follows:

	At March 31,		At December 31,
(in millions)	2020		2019
Inventory, current:
Metals at average cost:
Finished goods	$	82.1	$	87.2
Work-in-process		263.8		259.7
Ore stockpiles on leach pads		385.1		358.4
Supplies at average cost		348.4		363.2
Total current inventory	$	1,079.4	$	1,068.5
Inventory, long-term:
Ore stockpiles on leach pads	$	1,149.0	$	1,230.3

During the three months ended March 31, 2020 and 2019, total leaching costs capitalized as non-current inventory of ore stockpiles on leach pads amounted to $50.7 million and $122.3 million, respectively. Leaching inventories recognized in cost of sales amounted to $105.9 million and $94.1 million for the three months March 31, 2020 and 2019, respectively.

NOTE 5 — INCOME TAXES:

The income tax provision and the effective income tax rate for the first quarter of 2020 and 2019 consisted of ($ in millions):

	2020			2019
Statutory income tax provision	$	207.4		$	214.7
Peruvian royalty		2.0			0.4
Mexican royalty		8.1			16.7
Peruvian special mining tax		4.2			6.1
Total income tax provision	$	221.7		$	237.9
Effective income tax rate		50.8	%		38.1	%

These provisions include income taxes for Peru, Mexico and the United States. In addition, the Mexican royalty, the Peruvian royalty and the Peruvian special mining tax are included in the income tax provision. The increase in the 2020 effective income tax rate from the same period in 2019 was primarily attributed to a movement in exchange gains and losses from the devaluation of the Mexican peso and the Peruvian sol versus the U.S. dollar.

Peruvian royalty and special mining tax: The Company has accrued $9.3 million and $6.0 million of royalty charge in the first quarter of 2020 and 2019, respectively, of which $2.0 million and $0.4 million were included in income taxes in 2020 and 2019, respectively.

The Company has accrued $4.2 million and $6.1 million of special mining tax as part of the income tax provision for the first quarter of 2020 and 2019, respectively.

Mexican mining royalty: The Company has accrued $8.1 million and $16.7 million of royalty taxes as part of the income tax provision for the first quarter of 2020 and 2019, respectively.

11

Accounting for uncertainty in income taxes: In the first quarter of 2020, there were no changes in the Company’s uncertain tax positions.

NOTE 6 — RELATED PARTY TRANSACTIONS:

The Company has entered into certain transactions in the ordinary course of business with parties that are controlling shareholders or their affiliates. These transactions include the lease of office space, air and railroad transportation, construction services, energy supply, and other products and services related to mining and refining. The Company lends and borrows funds among affiliates for acquisitions and other corporate purposes. These financial transactions bear interest and are subject to review and approval by senior management, as are all related party transactions. It is the Company’s policy that the Audit Committee of the Board of Directors shall review all related party transactions. The Company is prohibited from entering or continuing a material related party transaction that has not been reviewed and approved or ratified by the Audit Committee.

Receivable and payable balances with related parties are shown below (in millions):

	At March 31,		At December 31,
	2020		2019
Related parties receivable current:
Grupo Mexico and affiliates:
Asarco LLC	$	15.9	$	10.8
AMMINCO Apoyo Administrativo, S.A. de C.V. (“AMMINCO”)		—		0.1
Compania Perforadora Mexico S.A.P.I. de C.V. and affiliates		0.3		0.3
Grupo Mexico		2.7		2.7
Mexico Generadora de Energia S. de R.L. ("MGE")		15.5		15.3
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates		0.2		0.2
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.1		0.1
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport")		0.5		0.4
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	35.3	$	30.0
Related parties receivable non-current:
Grupo Mexico and affiliates:
Asarco LLC	$	59.0	$	59.5
Related parties payable:
Grupo Mexico and affiliates:
Asarco LLC	$	23.8	$	4.3
AMMINCO		9.1		16.9
Eolica El Retiro, S.A.P.I. de C.V.		0.1		—
Ferrocarril Mexicano, S.A. de C.V.		6.1		6.4
Grupo Mexico		1.3		1.1
MGE		34.7		40.2
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates		6.1		16.0
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.3		0.2
Mexico Transportes Aereos, S.A. de C.V. (“Mextransport”)		—		1.2
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	81.6	$	86.4

12

Purchase and sale activity:

Grupo Mexico and affiliates:

The following table summarizes the purchase and sale activities with Grupo Mexico and its affiliates in the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Purchase activity
Asarco LLC	$	62.5	$	10.0
AMMINCO		4.4		2.4
Eolica El Retiro, S.A.P.I. de C.V.		0.1		0.8
Ferrocarril Mexicano, S.A. de C.V.		12.0		10.6
Grupo Mexico		2.5		2.5
MGE		51.6		55.2
Mexico Proyectos y Desarrollos S.A. de C.V. and affiliates		14.3		10.8
Total purchases	$	147.4	$	92.3
Sales activity
Asarco LLC	$	5.9	$	2.0
MGE		9.8		15.1
Total sales	$	15.7	$	17.1

Grupo Mexico, the parent and the majority indirect stockholder of the Company, and its affiliates provide various services to the Company. These services are primarily related to accounting, legal, tax, financial, treasury, human resources, price risk assessment and hedging, purchasing, procurement and logistics, sales and administrative and other support services. In 2018, AMMINCO, a subsidiary of Grupo Mexico, began providing these services for the Company's Peruvian operations. The Company pays Grupo Mexico and AMMINCO for these services and expects to continue requiring these services in the future.

In the first quarter of 2020, the Company did not make donations to Fundacion Grupo Mexico, A.C., an organization dedicated to promoting the social and economic development of the communities close to the Company’s Mexican operations. In the first quarter of 2019, the Company made donations of $3.4 million to this this organization.

The Company’s Mexican operations paid fees for freight services provided by Ferrocarril Mexicano, S.A de C.V. and for construction services provided by Mexico Proyectos y Desarrollos, S.A. de C.V. and its affiliates, which are all subsidiaries of Grupo Mexico.

The Company’s Mexican operations purchased scrap, concentrate and other copper mineral from Asarco LLC, and power from MGE. Both companies are subsidiaries of Grupo Mexico.

In 2012, the Company signed a power purchase agreement with MGE, whereby MGE will supply some of the Company’s Mexican operations with power through 2032. MGE has two natural gas-fired combined cycle power generating units, with a net total capacity of 516.2 megawatts and has been supplying power to the Company since December 2013. Currently, MGE is supplying approximately 1% of its power output to third-party energy users; compared to 2.1% at March 31, 2019.

In 2014, Mexico Generadora de Energia Eolica, S. de R.L. de C.V, an indirect subsidiary of Grupo Mexico, located in Oaxaca, Mexico, acquired Eolica el Retiro. Eolica el Retiro is a windfarm with 37 wind turbines. This company started operations in January 2014 and started to sell power to Industrial Minera Mexico, S.A. de C.V. and subsidiaries (IMMSA) and other subsidiaries of Grupo Mexico in the third quarter of 2014. Currently, Eolica el Retiro is supplying approximately 3% of its power output to IMMSA and Mexcobre, compared to 20.9% at March 31, 2019.

The Company sold copper rod as well as sulfuric acid, silver and gold to Asarco LLC.

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In September 2019, Asarco LLC signed a promissory note to pay to the Company´s Mexican operations $62.0 million plus interest no later than October 31, 2021, with quarterly payments of $0.5 million. The annual interest rate of the note is Libor plus 200 basis points, which will be reviewed annually. As of March 31, 2020, $59.0 million is recorded in a separate line as a long-term related party receivable in the condensed consolidated balance sheet. Related to this promissory note, the Company recorded interest income of $0.6 million in the first quarter of 2020.

In addition, the Company received fees for natural gas and services provided to MGE; a subsidiary of Grupo Mexico.

Companies with relationships to the controlling group:

The following table summarizes the purchase and sales activities with other Larrea family companies in the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Purchase activity
Boutique Bowling de Mexico S.A. de C.V.	$	0.1	$	0.1
Mextransport		1.9		—
Operadora de Cinemas S.A. de C.V.		0.1		(*)
Total purchases	$	2.1	$	0.1
Sales activity
Boutique Bowling de Mexico S.A. de C.V.	$	(*)	$	(*)
Empresarios Industriales de Mexico, S.A. de C.V.		—		0.1
Mextransport		0.4		0.5
Operadora de Cinemas S.A. de C.V.		(*)		(*)
Total sales	$	0.4	$	0.6

(*) amount is lower than $0.1 million

The Larrea family controls a majority of the capital stock of Grupo Mexico, and has extensive interests in other businesses, including transportation, real estate and entertainment. The Company engages in certain transactions in the ordinary course of business with other entities controlled by the Larrea family relating to the lease of office space, air transportation and entertainment.

The Company’s Mexican operations paid fees for entertainment services provided by Boutique Bowling de Mexico, S.A de C.V. and Operadora de Cinemas, S.A. de C.V. Both companies are controlled by the Larrea family.

Mextransport provides aviation services to the Company´s Mexican operations. This is a company controlled by the Larrea family.

In addition, the Company received fees for building rental and maintenance provided to Boutique Bowling de Mexico, S.A. de C.V., Operadora de Cinemas, S.A. de C.V and Mextransport. The Company´s Mexican operations also received fees for security services provided to Empresarios Industriales de Mexico, S.A. de C.V. This is also a company controlled by the Larrea family.

Equity Investment in Affiliate: The Company has a 44.2% participation in Compania Minera Coimolache S.A. (“Coimolache”), which it accounts for on the equity method. Coimolache owns Tantahuatay, a gold mine located in the northern part of Peru.

In addition, the Company has a 30.0% participation in Apu Coropuna S.R.L. (“Apu Coropuna”), which it accounts for on the equity method. Apu Coropuna is a company which undertakes exploration activities in the Pucay prospect, located in Arequipa, Peru.

It is anticipated that in the future the Company will enter into similar transactions with these same parties.

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In the first quarter of 2020, the Company did not have purchase or sales activities with companies having relationships with SCC executive officers.

NOTE 7 — LEASES:

The Company has operating leases for power generating facilities, vehicles and properties. Leases with an initial term of 12 months or less, underlying asset value of $10,000 or less and total nominal contract value of $100,000 or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. Some of the Company’s leases include both lease and non-lease components which are accounted for separately. The Company’s leases have remaining lease terms of two years to 13 years, and do not include options to extend the leases. The Company’s lease agreements do not contain options to purchase the leased assets or to terminate the leases before the expiration date. In addition, the Company’s lease contracts do not have any material residual value guarantees or material restrictive covenants. As none of the Company’s leases provides an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

The weighted average remaining lease term for the Company’s leases is 10 years, and the weighted average discount rate for these leases is 3.60%.

The operating lease expense recognized in the three months ended March 31, 2020 and 2019 was classified as follows (in millions):

Classification	2020		2019
Cost of sales (exclusive of depreciation, amortization and depletion)	$	28.9	$	28.8
Selling, general and administrative		0.1		0.1
Exploration		(*)		(*)
Total lease expense	$	29.0	$	28.9

(*) amount is lower than $0.1 million

The Company’s short-term lease costs for the three months ended March 31, 2020 was less than $0.1 million.

Maturities of lease liabilities were as follows:

	Lease liabilities
Year	(in millions)
2020	$	87.0
2021		116.0
2022		112.9
2023		111.6
2024		103.6
After 2024		826.3
Total lease payments	$	1,357.4
Less: interest on lease liabilities		(327.9)
Present value of lease payments	$	1,029.5

NOTE 8 — ASSET RETIREMENT OBLIGATION:

Peruvian operations:

The Company maintains an asset retirement obligation for its mining properties in Peru, as required by the Peruvian Mine Closure Law. In accordance with the requirements of this law the Company’s closure plans were approved by the Peruvian Ministry of Energy and Mines (“MINEM”). As part of the closure plans, the Company is required to provide

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annual guarantees over the estimated life of the mines, based on a present value approach, and to furnish the funds for the asset retirement obligation. This law requires a review of closing plans every five years.

On June 24, 2019, MINEM approved a change to the guarantees required for the mining closure plans. The new regulation specifies that the annual guarantees can be secured with real estate up to a maximum of 50% and the remaining amount with credit instruments. Currently, the Company has pledged the value of its Lima office complex for the 50% of the guarantee and with a stand-by letter of credit for the other 50% as security for this obligation.Through January 2020, the Company has provided total guarantees of $47.1 million.

The closure cost recognized for this liability includes the cost, as outlined in its closure plans, of dismantling the Toquepala and Cuajone concentrators, the Ilo smelter and refinery, and the shops and auxiliary facilities at the three units. In March 2016, MINEM approved the Mining Closure Plan for the Toquepala expansion project and the revised closure plans for the Cuajone mine and the Ilo facilities were approved in January and October 2019, respectively. As result of these new estimates, the Company increased the asset retirement obligation by $28.1 million in 2019. The closure plan for the Tia Maria project was approved in February 2017. However, the Company has not recorded a retirement obligation for the Tia Maria project because the work on the project is still on hold. The Company believes that under these circumstances the recording of a retirement obligation is not appropriate.

Mexican operations:

The Company has recognized an estimated asset retirement obligation for its mining properties in Mexico as part of its environmental commitment. Even though there is currently no enacted law, statute, ordinance, written or oral contract requiring the Company to carry out mine closure and environmental remediation activities, the Company believes that a constructive obligation presently exists based on the remediation requirements caused by the closure of any facility. The overall cost recognized for mining closure in Mexico includes the estimated costs of dismantling concentrators, smelter and refinery plants, shops and other facilities.

The following table summarizes the asset retirement obligation activity for the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Balance as of January 1	$	262.3	$	217.7
Changes in estimates		—		28.1
Closure payments		(0.6)		(0.2)
Accretion expense		3.8		3.0
Balance as of March 31,	$	265.5	$	248.6

NOTE 9 — BENEFIT PLANS:

Post retirement defined benefit plans:

The Company has two noncontributory defined benefit pension plans covering former salaried employees in the United States and certain former expatriate employees in Peru. Effective October 31, 2000, the Board of Directors amended the qualified pension plan to suspend the accrual of benefits.

In addition, the Company’s Mexican subsidiaries have a defined contribution pension plan for salaried employees and a non-contributory defined benefit pension plan for union employees.

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The components of net periodic benefit costs for the three months ended March 31, 2020 and 2019 are as follows (in millions):

(in millions)	2020		2019
Service cost	$	0.4	$	0.3
Interest cost		0.5		0.4
Expected return on plan assets		(0.7)		(0.8)
Amortization of prior service cost / (credit)		(*)		(*)
Amortization of net loss/(gain)		(*)		(*)
Net periodic benefit cost	$	0.2	$	(0.1)

(*) amount is lower than $0.1 million

Post-retirement health care plans:

United States: The Company adopted a post-retirement health care plan for retired salaried employees eligible for Medicare in 1996. The Company manages the plan and is currently providing health benefits to retirees. The plan is accounted for in accordance with ASC 715 “Compensation retirement benefits”.

In Mexico, health services are provided by the Mexican Social Security Institute.

The components of net periodic benefit cost for the three months ended March 31, 2020 and 2019 are as follows (in millions):

(in millions)	2020		2019
Interest cost	$	0.3	$	0.2
Amortization of net loss (gain)		(*)		(*)
Amortization of prior service cost/ (credit)		(*)		(*)
Net periodic benefit cost	$	0.3	$	0.2

(*) amount is lower than $0.1 million

NOTE 10 — COMMITMENTS AND CONTINGENCIES:

Environmental matters:

The Company has instituted extensive environmental conservation programs at its mining facilities in Peru and Mexico. The Company’s environmental programs include, among others, water recovery systems to conserve water and minimize the impact on nearby streams, reforestation programs to stabilize the surface of the tailings dams and the implementation of scrubbing technology in the mines to reduce dust emissions.

Environmental capital investments in the three months ended March 31, 2020 and 2019 were as follows (in millions):

	2020		2019
Peruvian operations	$	2.5	$	10.2
Mexican operations		9.9		9.0
	$	12.4	$	19.2

Peruvian operations: The Company’s operations are subject to applicable Peruvian environmental laws and regulations. The Peruvian government, through the Ministry of Environment (“MINAM”) conducts annual audits of the Company’s Peruvian mining and metallurgical operations. Through these environmental audits, matters related to environmental obligation, compliance with legal requirements, atmospheric emissions, effluent monitoring and waste management are reviewed. Peruvian law requires that companies in the mining industry provide assurances for future mine closure and remediation. In accordance with the requirements of this law, the Company’s closure plans were approved by MINEM. See Note 8 “Asset retirement obligation,” for further discussion of this matter.

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Air Quality Standards (“AQS”): In June 2017, MINAM enacted a supreme decree which defined new AQS for daily sulfur dioxide in the air. As of March 31, 2020, the Company maintains a lower daily average level of µg/m3 (micrograms per cubic meter) of SO2, than those required by the AQS.

Soil Environmental Quality Standards (“SQS”): In 2013, the Peruvian government enacted SQS applicable to any existing facility or project that generates or could generate the risk of soil contamination in its area of operation or influence. In March 2014, MINAM issued a supreme decree, which established additional provisions for the gradual implementation of SQS.

In accordance with the regulatory requirements, the Company has been working on a characterization phase and a Soil Decontamination Plan (“SDP”) for environmentally impacted sites in each of its operating units (Toquepala, Cuajone, and Ilo) with the assistance of consulting companies. The Toquepala and Cuajone SDP have been presented to the authorities for review and approval in the third quarter of 2019, and the Ilo SDP was submitted in January 2020.

While the Company believes that there is a reasonable possibility that a potential loss contingency may exist, it cannot currently reasonably estimate the amount of the contingency. The Company believes that a reasonable determination of the loss will be possible once the characterization study and the SDP are substantially completed and approved, which is expected during 2020. At that time, the Company will be in a position to estimate the remediation cost. Furthermore, the Company does not believe that it can estimate a reasonable range of possible costs until the noted studies have substantially progressed and therefore is not able to disclose a range of costs that is meaningful.

Climate change: On April 17, 2018, the Peruvian government enacted Law N. 30754, establishing a Climate Change

Framework. Through this law, promoting public and private investment in climate change management is declared to be of national interest. The law proposes to create an institutional framework to address climate change in Peru, outlining new measures, particularly with respect to climate change mitigation. It includes, for example, provisions dealing with: increasing carbon capture and use of carbon sinks; afforestation and reforestation practices; land use changes; and sustainable systems of transportation, solid waste management, and energy systems. It was the first Latin American climate change framework law to incorporate responsibilities from the Paris Agreement. Regulations to this law were enacted by Supreme Decree 013-2019 published on December 31, 2019 and are applicable to all Peruvian institutions and agencies. It is expected that further Peruvian regulations would be applicable to non-governmental entities. The Company anticipates initiating a multi-year process to adopt applicable reporting recommendations of the Task-Force on Climate Related Financial Disclosures (TCFD) once new Peruvian climate change regulations applicable to non-governmental entities are implemented. The Company is committed to the environment and to manage climate-related impacts. The Company’s focus is to seek continuous improvement in the responsible use of natural resources while complying with strict applicable legal standards for prevention, mitigation, control and remediation of environmental impacts. Implementing continuous improvement in the Company’s processes allows greater efficiency in the use and consumption of energy, water, and other natural resources.

Mexican operations: The Company’s operations are subject to applicable Mexican federal, state and municipal environmental laws, to Mexican official standards, and to regulations for the protection of the environment, including regulations relating to water supply, water quality, air quality, noise levels and hazardous and solid waste.

The principal legislation applicable to the Company’s Mexican operations is the Federal General Law of Ecological Balance and Environmental Protection (the “General Law”), which is enforced by the Federal Bureau of Environmental Protection (“PROFEPA”). PROFEPA monitors compliance with environmental legislation and enforces Mexican environmental laws, regulations and official standards. It may also initiate administrative proceedings against companies that violate environmental laws, which in the most extreme cases may result in the temporary or permanent shutdown of non-complying facilities, the revocation of operating licenses and/or other sanctions or fines.

In 2011, the General Law was amended, giving an individual or entity the ability to contest administrative acts, including environmental authorizations, permits or concessions granted, without the need to demonstrate the actual existence of harm to the environment as long as it can be argued that the harm may be caused. In addition, in 2011, amendments to the Civil Federal Procedures Code (“CFPC”) were enacted, which establish three categories of collective actions by means of which 30 or more people claiming injury derived from environmental, consumer protection,

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financial services and economic competition issues will be considered to be sufficient in order to have a legitimate interest to seek through a civil procedure restitution or economic compensation or suspension of the activities from which the alleged injury derived. The amendments to the CFPC may result in more litigation, with plaintiffs seeking remedies, including suspension of the activities alleged to cause harm.

In 2013, the Environmental Liability Federal Law was enacted. The law establishes general guidelines for actions to be considered to likely cause environmental harm. If a possible determination regarding harm occurs, environmental clean-up and remedial actions sufficient to restore environment to a pre-existing condition should be taken. Under this law, if restoration is not possible, compensation measures should be provided. Criminal penalties and monetary fines can be imposed under this law.

On February 2019, the Mexican Supreme Court confirmed the constitutionality of an ecological tax on extractive activities developed in the state of Zacatecas, which taxes the environmental remediation actions, emissions of certain gases to the atmosphere, emissions of pollutant substances to the soil or water, and waste storage within the state territory. The Company has determined that this new environmental regulation will have no impact on its financial position.

Guaymas sulfuric acid spill:

On July 9, 2019, there was an incident at the Company´s Marine Terminal in Guaymas, Sonora, that caused the discharge of approximately three cubic meters of sulfuric acid into the sea in the industrial port area.

The Guaymas bay has an estimated water volume of 340 million cubic meters, the spill upon entering in contact with the sea’s alkaline conditions, the discharge was quickly diluted, the sulfuric acid was naturally and immediately neutralized. As a result the discharge was considered harmless, and it was found that neither the flora nor fauna of the port area were affected, according to the report from the Ministry of Navy.

On July 10, 2019, PROFEPA made a first inspection of the area, concluding that the Company executed all the correct procedures in order to contain the discharge, and no reference was made to the existence of negative impacts on the environment resulting from the incident.

On Friday, July 19, 2019, PROFEPA revisited the facilities to carry out a second inspection, declaring a partial temporary shutdown related only to the storage process and transportation of sulfuric acid at the terminal, arguing the absence of an authorization of environmental impact. It is important to note that these facilities have been in operation since 1979, previous to the 1988 Mexican General Law of Ecological Balance and the Protection of the Environment. Therefore, these licenses are not a requirement for companies that have been operating before the aforementioned law. In addition, in 2009, PROFEPA awarded a certification of “Clean Industry and Environmental Quality” for such facility; which was subsequently renewed four times (for a two-year period each time).

The Company does not know the reasons or causes for this partial and temporary closure, but it will continue contributing with the environmental authorities in order to provide certainty that the operation is in strict compliance with the environmental regulations. The Company expects the environmental authorities to suspend the partial temporary shutdown, once they resolve their concerns. Currently, the Company does not expect any impact on its operations. As of March 31, 2020, the matter is pending resolution.

Climate change:

Grupo Mexico, the indirect parent of SCC, has for more than 10 years issued sustainability reports under the Global Reporting Initiative (GRI). Grupo Mexico also participates in different Mexican and international reporting programs such as the Greenhouse Gases (GHG) Mexico Program and the Carbon Disclosure Program (CDP). Since 2013, GHG and CDP have signed a memorandum of understanding to work on aligning their reporting frameworks. Grupo Mexico’s 2018 CDP questionnaire included responses to the Task Force on Climate-Related Disclosure or TCFD concerns. In compliance with the 2012 Mexican Climate Change Law Grupo Mexico’s GHG emissions are reported and verified independently. Grupo Mexico’s Sustainability Reports disclosing inventories of GHG emissions can be located at

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http://www.gmexico.com/site/en/sustainable/sustainability_reports.html. On October 18, 2017, Grupo Mexico was selected to join the S&P Sustainability Indices MILA Pacific Alliance (DJSI MILA). This regional sustainability index included for 2017, 42 leading companies in sustainability from the countries that form part of the Pacific Alliance: Mexico, Chile, Colombia and Peru.

The Company believes that all of its facilities in Peru and Mexico are in material compliance with applicable environmental, mining and other applicable laws and regulations. The Company also believes that continued compliance with environmental laws of Mexico and Peru will not have a material adverse effect on the Company’s business, properties, or result of operations.

Litigation matters:

Peruvian operations

The Tia Maria Mining Project

There are four lawsuits filed against the Peruvian Branch of the Company related to the Tia Maria project. The lawsuits seek (i) to declare null and void the resolution which approved the Environmental Impact Assessment of the project; (ii) the cancellation of the project and the withdrawal of mining activities in the area and (iii) to declare null and void the mining concession application of the Tia Maria project. The lawsuits were filed by Messrs. Jorge Isaac del Carpio Lazo (filed May 22, 2015), Ernesto Mendoza Padilla (filed May 26, 2015), Juan Alberto Guillen Lopez (filed June 18, 2015) and Junta de Usuarios del Valle del Tambo (filed April 30, 2015).

The del Carpio Lazio case was rejected by the court of first instance on November 14, 2016. The plaintiff filed an appeal before the Superior Court on January 3, 2017. On January 9, 2018, the lawyers of both parties presented their respective positions before the Appellate Court. On March 8, 2018, the Appellate Court issued its final decision, which upheld the first instance ruling. On April 27, 2018, the plaintiff filed an extraordinary appeal before the Supreme Court. As of March 31, 2020, the case remains pending resolution.

The Mendoza Padilla case was initially rejected by the lower court on July 8, 2015. This ruling was confirmed by the Superior Court on June 14, 2016. On July 12, 2016, the case was appealed before the Constitutional Court. On November 20, 2018, the Constitutional Court reversed the previous decisions and remanded the case to the lower court for further action. As of March 31, 2020, the case remains pending resolution.

The Guillen Lopez case is currently before the lower court. On July 19, 2019, the oral arguments took place. On January 7, 2020, the Judge decided to suspend the proceeding until the del Carpio Lazio case is concluded. Therefore, as of March 31, 2020, the case remains pending resolution.

The Junta de Usuarios del Valle del Tambo case is currently before the lower court. On May 2016, the Company was included in the process, after the Ministry of Energy and Mines filed a civil complaint. On March 6, 2019, the Company was formally notified of the lawsuit and answered the complaint on March 20, 2019. As of March 31, 2020, the case remains pending resolution.

The Company asserts that these lawsuits are without merit and is vigorously defending against them. The potential contingency amount for these cases cannot be reasonably estimated by management at this time.

Special Regional Pasto Grande Project (“Pasto Grande Project”)

In 2012, the Pasto Grande Project, an entity of the Regional Government of Moquegua, filed a lawsuit against SCC’s Peruvian Branch alleging property rights over a certain area used by the Peruvian Branch and seeking the demolition of the tailings dam where SCC’s Peruvian Branch has deposited its tailings from the Toquepala and Cuajone operations since 1995. The Peruvian Branch has had title to use the area in question since 1960 and has constructed and operated the tailings dams with proper governmental authorization, since 1995. Upon a motion filed by the Peruvian Branch, the lower court has included MINEM as a defendant in this lawsuit. MINEM has answered the complaint and denied the

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validity of the claim. As of March 31, 2020, the case remains pending resolution without further developments. SCC’s Peruvian Branch asserts that the lawsuit is without merit and is vigorously defending against it. The amount of this contingency cannot be reasonably estimated by management at this time.

Mexican operations

The Accidental Spill at Buenavista Mine of 2014

In relation to the 2014 accidental spill of copper sulfate solution that occurred at a leaching pond of the Buenavista mine, the following legal procedures are pending against the Company:

On August 19, 2014, PROFEPA, as part of the administrative proceeding initiated after the spill, announced the filing of a criminal complaint against Buenavista del Cobre S.A. de C.V. (“BVC”), a subsidiary of the Company, in order to determine those responsible for the environmental damages. During the second quarter of 2018, the criminal complaint was dismissed. This decision was appealed and remains pending resolution as of March 31, 2020.

Through the first half of 2015, six collective action lawsuits were filed in federal courts in Mexico City and Sonora against two subsidiaries of the Company seeking economic compensation, clean up and remedial activities in order to restore the environment to its pre-existing conditions. Two of the collective action lawsuits have been dismissed by the court. As of March 31, 2020, four lawsuits continue in process: three were filed by Acciones Colectivas de Sinaloa, A.C. and one was filed by Defensa Colectiva, A.C., requesting precautionary measures about construction of facilities for monitoring public health services and prohibiting the closure of the Rio Sonora Trust.

Similarly, during 2015, eight civil action lawsuits were filed against BVC in the state courts of Sonora seeking damages for alleged injuries and for moral damages as a consequence of the spill. The plaintiffs in the state court lawsuits are: Jose Vicente Arriola Nunez et al; Santana Ruiz Molina et al; Andres Nogales Romero et al; Teodoro Javier Robles et al; Gildardo Vasquez Carvajal et al; Rafael Noriega Souffle et al; Grupo Banamichi Unido de Sonora El Dorado, S.C. de R.L. de C.V; and Marcelino Mercado Cruz. In 2016, three additional civil action lawsuits, claiming similar damages, were filed by Juan Melquicedec Lebaron; Blanca Lidia Valenzuela Rivera et al and Ramona Franco Quijada et al. In 2017, BVC was served with thirty-three additional civil action lawsuits, claiming similar damages. The lawsuits were filed by Francisco Javier Molina Peralta et al; Anacleto Cohen Machini et al; Francisco Rafael Alvarez Ruiz et al; Jose Alberto Martinez Bracamonte et al; Gloria del Carmen Ramirez Duarte et al; Flor Margarita Sabori et al; Blanca Esthela Ruiz Toledo et al; Julio Alfonso Corral Domínguez et al; Maria Eduwiges Bracamonte Villa et al; Francisca Marquez Dominguez et al; Jose Juan Romo Bravo et al; Jose Alfredo Garcia Leyva et al; Gloria Irma Dominguez Perez et al; Maria del Refugio Romero et al; Miguel Rivas Medina et al; Yolanda Valenzuela Garrobo et al; Maria Elena Garcia Leyva et al; Manuel Alfonso Ortiz Valenzuela et al; Francisco Alberto Arvayo Romero et al; Maria del Carmen Villanueva Lopez et al; Manuel Martin Garcia Salazar; Miguel Garcia Arguelles et al; Dora Elena Rodriguez Ochoa et al; Honora Eduwiges Ortiz Rodriguez et al; Francisco Jose Martinez Lopez et al; Maria Eduwiges Lopez Bustamante; Rodolfo Barron Villa et al, Jose Carlos Martinez Fernandez et al, Maria de los Angeles Fabela et al; Rafaela Edith Haro et al; Luz Mercedes Cruz et al; Juan Pedro Montaño et al; and Juana Irma Alday Villa. During the first quarter of 2018, BVC was served with another civil action lawsuit, claiming similar damages. The lawsuit was filed by Alma Angelina Del Cid Rivera et al. During the last quarter of 2018, BVC was served with other three civil action lawsuits, claiming similar damages, such lawsuits were filed by Los Corrales de la Estancia, S.C. de R.L.; Jose Antonio Navarro; Jesus Maria Peña Molina, et al; these actions were dismissed by the court, because they have expired. As of March 31, 2020, forty-five cases remain pending resolution.

During 2015, four constitutional lawsuits (juicios de amparo) were filed before Federal Courts against various authorities and against a subsidiary of the Company, arguing; (i) the alleged lack of a waste management program approved by SEMARNAT; (ii) the alleged lack of a remediation plan approved by SEMARNAT with regard to the August 2014 spill; (iii) the alleged lack of community approval regarding the environmental impact authorizations granted by SEMARNAT to one subsidiary of the Company; and (iv) the alleged inactivity of the authorities with regard of the spill in August 2014. The plaintiffs of these lawsuits are: Francisca Garcia Enriquez, et al which established two lawsuits, Francisco Ramon Miranda, et al and Jesus David Lopez Peralta et al. During the third quarter of 2016, four additional constitutional lawsuits, claiming similar damages were filed by Mario Alberto Salcido et al; Maria Elena Heredia

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Bustamante et al; Martin Eligio Ortiz Gamez et al; and Maria de los Angeles Enriquez Bacame et al. During the third quarter of 2017, BVC was served with another constitutional lawsuit filed by Francisca García Enriquez et al. In 2018, BVC was served with two additional constitutional lawsuits that were filed against SEMARNAT by Norberto Bustamante et al. Regarding the constitutional lawsuit filed by Maria Elena Heredia Bustamante et al; in which it was claimed the lack of community approval regarding the authorization granted by SEMARNAT to build the new BVC tailings dam, on September 5, 2018, the Supreme Court of Justice issued a resolution which established that such authorization was granted to BVC in compliance with the applicable legislation. However, SEMARNAT must carry out a public meeting to inform the community of the technical aspects required to build the dam, potential impacts and prevention measures, with no material effects to BVC’s operations. SEMARNAT has carried out the consultation ordered by the Supreme Court. As a result, has informed the corresponding Judge about its compliance with the resolution, in which BVC was imposed additional measures of environmental impact prevention, such as: (i) the building of at least three monitoring wells downstream from the curtain of the contingency dam in a period six months period; (ii) monitoring of the groundwater level and water quality every six months; (iii) carrying out rain collection work in order to restore water to the Sonora River basin, for which six months are granted to present the execution program; (iv) determine the location of wildlife conservation and protection areas and define the need to establish biological corridors; (v) obtain photographic or videographic evidence every six months; (vi) submitting to SEMARNAT two years before the closure and abandonment of the site, or earlier if necessary, the closure program that includes the cleaning and restoration of the soil including Mexican regulation NOM-141; (vii) include the measures in the Environmental Monitoring Program according to the environmental components impacted; and (viii) hiring an external environmental consultant to validate compliance with the current and new conditions that are imposed. The foregoing does not impact BVC’s operations. Likewise, it is noted that the lawsuits promoted by Maria de los Angeles Enriquez Bacame and Norberto Bustamante have been dismissed and closed without prejudice to the Company. As of March 31, 2020, the remaining cases are still pending resolution.

It is not currently possible to determine the extent of the damages sought in these state and federal lawsuits but the Company considers that these lawsuits are without merit. Accordingly, the Company is vigorously defending against them. Nevertheless, the Company considers that none of the legal proceedings resulting from the spill, individually or in the aggregate, would have a material effect on its financial position or results of operations.

Corporate operations

Carla Lacey, on behalf of herself and all other similarly situated stockholders of Southern Copper Corporation, and derivatively on behalf of Southern Copper Corporation

In April 2019, a derivative lawsuit was filed against the Company, certain of its current and former Directors, and Grupo Mexico in the Delaware Court of Chancery relating to certain construction contracts, contracts for the purchase and sale of minerals, and transportation contracts entered into between the Company’s subsidiaries and subsidiaries of Grupo Mexico.

In October 2019, the plaintiff amended the complaint to include claims related to certain administrative services contracts between the Company’s subsidiaries and Grupo Mexico. The amended complaint alleges, among other things, that the construction contracts, the mineral contracts, the transportation contracts, and the administrative services contracts were unfair as a result of breaches of fiduciary duties and the Company’s charter. The amended complaint seeks, among other things, unspecified monetary damages. In January 2020, the Company, the current and former Directors, and Grupo Mexico responded to the complaint by filing motions to dismiss. Plaintiff filed a brief in response to the motions on March 13, 2020. Because the Company has not formed a conclusion as to whether an unfavorable outcome is either probable or remote, the Company expresses no opinion as to the likelihood of an unfavorable outcome or the amount or range of any possible loss to the Company.

Labor matters:

Peruvian operations: 64.8% of the Company’s 4,886 Peruvian employees were unionized at March 31, 2020. Currently, there are six separate unions, one large union and five small unions. In June 2018, the Company signed a three-year collective bargaining agreement with one of the smaller unions. This agreement includes, among other things, annual

22

salary increases of 5% for each year starting September 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense. In August 2018, the Company signed a three-year collective bargaining agreement with three additional unions. This agreement includes, among other things, annual salary increases of 5% for each year starting December 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense. In March 2019, the Company signed an agreement with one additional union. The agreement also included annual salary increases of 5% for each year starting September 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense in the first quarter of 2019.

In November 2019, the Company signed two agreements with the remaining union, one of them for one year and the other one consisting of a three-year collective bargaining agreement. The agreements also included annual salary increases of 5% for each year starting September 2018, and a signing bonus of S/15,000 (approximately $4,500) for the one-year agreement and S/45,000 for the three-year agreement (approximately $13,600) which were recorded as labor expense in the fourth quarter of 2019.

Mexican operations: In recent years, the Mexican operations have experienced a positive improvement of their labor environment, as its workers opted to change their affiliation from the Sindicato Nacional de Trabajadores Mineros, Metalurgicos y Similares de la Republica Mexicana (the “National Mining Union”) to other less politicized unions.

The workers of the San Martin mine were on strike since July 2007. On February 28, 2018, the striking workers of the San Martín mine of IMMSA held an election to vote on the union that will hold the collective bargaining agreement at the San Martín mine. The Federacion Nacional de Sindicatos Independientes (the National Federation of Independent Unions), won the vote by a majority. Nevertheless, the vote was challenged by the National Mining Union. On June 26, 2018, the Federal Mediation and Arbitration Board issued a ruling recognizing the election results. Due to the agreement between workers and the Company to end the protracted strike, on August 22, 2018, the Federal Mediation and Arbitration Board authorized the restart of operations of the San Martín mine. Such authorization was challenged by the National Mining Union. On April 4, 2019, the Federal Mediation and Arbitration Board recognized again the election results from February 28, 2018; in which the National Federation of Independent Unions won by a majority. During the last quarter of 2019, a Federal Court issued a resolution that established that the Labor Court should analyze the list of workers with the right to vote in the union election. The Company and the National Federation of Independent Unions challenged such determination before the Supreme Court of Justice and it is still pending resolution. The Company is working on a rehabilitation plan to restore operations at the San Martin mine with a budget of $97.7 million. At March 31, 2020, the plan is in progress with a total expense of $78.6 million.

In the case of the Taxco mine, its workers have been on strike since July 2007. After several legal procedures, in August 2015, the Supreme Court decided to assert jurisdiction over the case and to rule on it directly. As of March 31, 2020, the case remains pending resolution without further developments.

It is expected that operations at the Taxco mine will remain suspended until the labor issues are resolved. In view of the lengthy strike, the Company has reviewed the carrying value of the Taxco mine to ascertain whether impairment exists. The Company concluded that there is a non-material impairment of the assets located at this mine.

Other legal matters:

The Company is involved in various other legal proceedings incidental to its operations, but the Company does not believe that decisions adverse to it in any such proceedings, individually or in the aggregate, would have a material effect on its financial position or results of operations.

Other commitments:

Peruvian Operations

Tia Maria:

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On August 1, 2014, the Company received the final approval of Tia Maria´s Environmental Impact Assessment (“EIA”). On July 8, 2019, the Company received the construction permit for this 120,000 ton annual SX-EW copper greenfield project with a total capital budget of $1,400 million. This permit was obtained after completing an exhaustive review process, complying with all established regulatory requirements and addressing all observations raised.

On July 15, 2019, anti-mining groups staged a violent demonstration affecting economic as well as other activities in the Islay province. These actions were followed by the filing of three complaints, sponsored by groups opposing the Tia Maria project, with the Mining Council, which is the Peruvian administrative authority responsible to resolve these complaints. The Mining Council temporarily suspended the construction permit on August 8, 2019. On October 7, 2019, as part of the process, the Mining Council conducted a hearing to hear the complaints and the Company´s position. On October 30, 2019, the Mining Council of the Peruvian Ministry of Energy and Mines ratified the construction permit for the Tia Maria project.

The Company´s commitment is to guarantee the population of Islay that the Tia Maria project will not adversely affect other local economic activities. The project will use only desalinated seawater for its operations and, for the transportation of its supplies and copper production, the Company will build an 32 kilometer industrial railway and an access road at a safe distance from the Tambo Valley.

The Company´s social programs in education, healthcare and productive development will continue to improve the quality of life and the agricultural and livestock activities in the Tambo Valley, as well as develop fishing and tourism in Islay. During the construction and operation phase, hiring local labor will be a priority. The Company has launched in June 2019 the free technical training program “Forging the Future”, which will benefit 700 persons in this province during 2019-20. After training, the participants will be eligible to apply for one of the estimated 9,000 jobs (3,600 direct and 5,400 indirect) required during the Tia Maria construction phase.

When in operation, the Company expects Tia Maria will generate a significant contribution through mining royalties and taxes from day one and will directly employ 600 workers and indirectly provide jobs to another 4,200.

Tia Maria´s project budget is approximately $1.4 billion, of which $340.6 million has been invested through March 31, 2020. This project will use state-of-the-art SX-EW technology with the highest international environmental standards. SX-EW facilities are the most environmentally friendly in the industry as they do not require a smelting process and therefore, do not release any emissions into the atmosphere.

Michiquillay:

In June 2018, the Company signed a contract for the acquisition of the Michiquillay copper project in Cajamarca, Peru, at a purchase price of $400 million. Michiquillay is a world class mining project with estimated mineralized material of 1,150 million tons and a copper grade of 0.63%. It is expected to produce 225,000 tons of copper per year (along with by-products of molybdenum, gold and silver) for an initial mine life of more than 25 years.

The Company paid $12.5 million at the signing of the contract. The balance of $387.5 million will be paid if the Company decides to develop the project which is not a present obligation.

Corporate Social Responsibility:

The Company has a corporate social responsibility policy to maintain and promote continuity of its mining operations and obtain the best results. The main objective of this policy is to integrate its operations with the local communities in the areas of influence of its operations by creating a permanent positive relationship with them, in order to develop the optimum social conditions and to promote sustainable development in the area. Accordingly, the Company has made the following commitments:

Tacna Region: In connection with the Toquepala concentrator expansion, the Company has committed to fund various social and infrastructure improvement projects in Toquepala’s neighboring communities. The total amount committed for these purposes is S/445.0 million (approximately $129.3 million).

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As the Toquepala expansion project has been completed, the Company considers that these commitments constitute present obligations of the Company and consequently has recorded a liability of $59.1 million in its condensed consolidated financial statements as of March 31, 2020.

In addition, the Company has committed S/70.3 million (approximately $20.4 million) for the construction of one infrastructure project in the Tacna region under the “social investment for taxes” (obras por impuestos) program which allows the Company to use these amounts as an advance payment of taxes.

Moquegua Region: In the Moquegua region, the Company participates in a “development roundtable” with local municipal authorities and community representatives to discuss the social needs and the way the Company could contribute to sustainable development in the region. Currently, the roundtable is discussing the creation of a Moquegua Region Development Fund for which the Company has offered a contribution of S/1,000 million (approximately $290.7 million). While final funding is not yet settled, the Company has committed to contribute S/ 108.4 million (approximately $31.5 million) as an advance, which is being utilized to fund an educational project. In addition, there is a commitment to finance the construction of a residual water treatment plant in Ilo for S/78.0 million (approximately $22.7 million).

In addition, the Company has committed S/87.8 million (approximately $25.5 million) for the construction of two infrastructure projects in the Moquegua region under the “social investment for taxes” (obras por impuestos) program which allows the Company to use these amounts as an advance payment of taxes.

Power purchase agreements:

● Electroperu S.A.: In June 2014, the Company entered into a power purchase agreement for 120 megawatt (“MW”) with the state power company Electroperu S.A., under which Electroperu S.A. began supplying energy for the Peruvian operations for twenty years starting on April 17, 2017.

● Kallpa Generacion S.A. (“Kallpa”): In July 2014, the Company entered into a power purchase agreement for 120MW with Kallpa, an independent Israeli owned power company, under which Kallpa will supply energy for the Peruvian operations for ten years starting on April 17, 2017 and ending on April 30, 2027. In May 2016, the Company signed an additional power purchase agreement for a maximum of 80MW with Kallpa, under which Kallpa began supplying energy for the Peruvian operations related to the Toquepala Expansion and other minor projects for ten years starting on May 1, 2017 and ending after ten years of commercial operation of the Toquepala Expansion or on April 30, 2029; whichever occurs first.

Mexican operations

Power purchase agreements:

● MGE: In 2012, the Company signed a power purchase agreement with MGE, an indirect subsidiary of Grupo Mexico, to supply power to some of the Company’s Mexican operations through 2032. For further information, please see Note 6 “Related party transactions”.

● Eolica el Retiro, S.A.P.I. de C.V.: In 2013, the Company signed a power purchase agreement with Eolica el Retiro, S.A.P.I. de C.V. a windfarm energy producer that is an indirect subsidiary of Grupo Mexico, to supply power to some of the Company´s Mexican operations. For further information, please see Note 6 “Related party transactions”.

● Parque Eolico de Fenicias, S. de R.L. de C.V.: On February 20, 2020, the Company signed a power purchase agreement with Parque Eolico de Fenicias, S. de R.L. de C.V., and indirect subsidiary of Grupo Mexico, to supply 611,400 MWh of power per year to some of the Company´s Mexican operations for 20 years. This agreement will start in January 2021.

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Corporate operations

Commitment for capital projects:

As of March 31, 2020, the Company has committed approximately $252.5 million for the development of its capital investment projects at its operations.

Tax contingency matters:

Tax contingencies are provided for under ASC 740-10-50-15 Uncertain tax position (see Note 5 “Income taxes”).

NOTE 11 — STOCKHOLDERS’EQUITY:

Treasury Stock:

Activity in treasury stock in the three-month period ended March 31, 2020 and 2019 is as follows (in millions):

	2020		2019
Southern Copper common shares
Balance as of January 1,	$	2,767.9	$	2,768.3
Used for corporate purposes		—		—
Balance as of March 31,		2,767.9		2,768.3
Parent Company (Grupo Mexico) common shares
Balance as of January 1,		281.0		251.3
Other activity, including dividend, interest and foreign currency transaction effect		(14.7)		6.4
Balance as of March 31,		266.3		257.7
Treasury stock balance as of March 31,	$	3,034.2	$	3,026.0

Southern Copper Common Shares:

At March 31, 2020 and at December 31, 2019, there were in treasury 111,537,217 shares of SCC’s common stock.

SCC share repurchase program:

In 2008, the Company’s Board of Directors (“BOD”) authorized a $500 million share repurchase program that has since been increased by the BOD and is currently authorized to $3 billion. Pursuant to this program, the Company has purchased 119.5 million shares of common stock at a cost of $2.9 billion. These shares are available for general corporate purposes. The Company may purchase additional shares of its common stock from time to time, based on market conditions and other factors. This repurchase program has no expiration date and may be modified or discontinued at any time.

The NYSE closing price of SCC common shares at March 31, 2020 was $28.16 and the maximum number of shares that the Company could purchase at that price is 2.9 million shares.

As a result of the repurchase of shares of SCC’s common stock, Grupo Mexico’s direct and indirect ownership was 88.9% as of March 31, 2020. There has not been any activity in the SCC share repurchase program since the third quarter of 2016.

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Directors’ Stock Award Plan:

The Company established a stock award compensation plan for certain directors who are not compensated as employees of the Company. Under this plan, participants received 1,200 shares of common stock upon election and 1,200 additional shares following each annual meeting of stockholders thereafter. 600,000 shares of Southern Copper common stock have been reserved for this plan. On April 26, 2018, the Company's stockholders approved a five-year extension of the Plan until January 29, 2023 and an increase of the shares award from 1,200 to 1,600. The fair value of the award is measured each year at the date of the grant.

Parent Company common shares:

At March 31, 2020 and at December 31, 2019 there were in treasury 93,067,011 and 93,082,532 of Grupo Mexico’s common shares, respectively.

Employee Stock Purchase Plan:

2015 Plan: In January 2015, the Company offered to eligible employees a new stock purchase plan through a trust that acquires series B shares of Grupo Mexico stock for sale to its employees, and employees of subsidiaries, and certain affiliated companies. The purchase price was established at 38.44 Mexican pesos (approximately $2.63) for the initial subscription, which expires in January 2023. Every two years employees will be able to acquire title to 50% of the shares paid in the previous two years. The employees will pay for shares purchased through monthly payroll deductions over the eight year period of the plan. At the end of the eight year period, the Company will grant the participant a bonus of 1 share for every 10 shares purchased by the employee. Any future subscription will be at the average market price at the date of acquisition or the grant date.

If Grupo Mexico pays dividends on shares during the eight year period, the participants will be entitled to receive the dividend in cash for all shares that have been fully purchased and paid as of the date that the dividend is paid. If the participant has only partially paid for shares, the entitled dividends will be used to reduce the remaining liability owed for purchased shares.

In the case of voluntary or involuntary resignation/termination of the employee, the Company will pay to the employee the fair market sales price at the date of resignation of the fully paid shares, net of costs and taxes. When the fair market sales value of the shares is higher than the purchase price, the Company will apply a deduction over the amount to be paid to the employee based on a decreasing schedule specified in the plan.

In case of retirement or death of the employee, the Company will render the buyer or his legal beneficiary, the fair market sales value as of the date of retirement or death of the shares effectively paid, net of costs and taxes.

The stock based compensation expense for the first quarter 2020 and 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

	2020		2019
Stock based compensation expense	$	0.2	$	0.2
Unrecognized compensation expense	$	1.8	$	2.4

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The following table presents the activity of this plan for the three months ended March 31, 2020 and 2019:

		Unit Weighted Average
	Shares	Grant Date Fair Value
Outstanding shares at January 1, 2020	1,379,734	$	2.63
Granted	—		—
Exercised	(54,221)	$	2.63
Forfeited	—		—
Outstanding shares at March 31, 2020	1,325,513	$	2.63
Outstanding shares at January 1, 2019	1,840,336	$	2.63
Granted	—		—
Exercised	(247,670)	$	2.63
Forfeited	—		—
Outstanding shares at March 31, 2019	1,592,666	$	2.63

2018 Plan: In November 2018, the Company offered to eligible employees a new stock purchase plan (the “New Employee Stock Purchase Plan”) through a trust that acquires series B shares of Grupo Mexico stock for sale to its employees, and employees of subsidiaries, and certain affiliated companies. The purchase price was established at 37.89 Mexican pesos (approximately $1.86) for the initial subscription, which expires in October 2026. Every two years employees will be able to acquire title to 50% of the shares paid in the previous two years. The employees will pay for shares purchased through monthly payroll deductions over the eight year period of the plan. At the end of the eight year period, the Company will grant the participant a bonus of 1 share for every 10 shares purchased by the employee. Any future subscription will be at the average market price at the date of acquisition or the grant date.

If Grupo Mexico pays dividends on shares during the eight year period, the participants will be entitled to receive the dividend in cash for all shares that have been fully purchased and paid as of the date that the dividend is paid. If the participant has only partially paid for shares, the entitled dividends will be used to reduce the remaining liability owed for purchased shares.

In the case of voluntary or involuntary resignation/termination of the employee, the Company will pay to the employee the fair market sales price at the date of resignation of the fully paid shares, net of costs and taxes. When the fair market sales value of the shares is higher than the purchase price, the Company will apply a deduction over the amount to be paid to the employee based on a decreasing schedule specified in the plan.

In case of retirement or death of the employee, the Company will render the buyer or his legal beneficiary, the fair market sales value as of the date of retirement or death of the shares effectively paid, net of costs and taxes.

The stock based compensation expense for the three months ended March 31, 2020 and 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

	2020		2019
Stock based compensation expense	$	0.2	$	0.1
Unrecognized compensation expense	$	4.3	$	3.5

The following table presents the stock award activity of this plan for the three months ended March 31, 2020 and 2019:

			Unit Weighted Average
	Shares		Grant Date Fair Value
Outstanding shares at January 1, 2020	4,002,898	$	1.86
Granted	—	$	—
Exercised	—		—
Forfeited	—		—
Outstanding shares at March 31, 2020	4,002,898	$	1.86
Outstanding shares at January 1, 2019	2,782,424	$	1.86
Granted	—		—
Exercised	—		—
Forfeited	—		—
Outstanding shares at March 31, 2019	2,782,424	$	1.86

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Non-controlling interest:

The following table presents the non-controlling interest activity for the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Balance as of January 1,	$	47.9	$	45.4
Net earnings		1.4		1.0
Dividend paid		(2.3)		(0.1)
Balance as of March 31,	$	47.0	$	46.3

NOTE 12 — FAIR VALUE MEASUREMENT:

Subtopic 820-10 of ASC “Fair value measurement and disclosures — Overall” establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under Subtopic 820-10 are described below:

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

Level 2 - Inputs that are observable, either directly or indirectly, but do not qualify as Level 1 inputs. (i.e., quoted prices for similar assets or liabilities).

Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

The carrying amounts of certain financial instruments, including cash and cash equivalents, accounts receivable (other than accounts receivable associated with provisionally priced sales) and accounts payable approximate fair value due to their short maturities. Consequently, such financial instruments are not included in the following table that provides information about the carrying amounts and estimated fair values of other financial instruments that are not measured at fair value in the condensed consolidated balance sheet as of March 31, 2020 and December 31, 2019 (in millions):

	At March 31, 2020				At December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
Liabilities:
Long-term debt level 1		6,191.4		6,712.2		6,190.6		7,675.3
Long-term debt level 2		750.4		749.2		750.2		776.1
Total long-term debt	$	6,941.8	$	7,461.4	$	6,940.8	$	8,451.4

Long-term debt is carried at amortized cost and its estimated fair value is based on quoted market prices classified as Level 1 in the fair value hierarchy except for the cases of the Yankee bonds, the notes due 2020 and the notes due 2022, which qualify as Level 2 in the fair value hierarchy as they are based on quoted prices in markets that are not active.

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Fair values of assets and liabilities measured at fair value on a recurring basis were calculated as follows as of March 31, 2020 and December 31, 2019 (in millions):

	Fair Value at Measurement Date Using:
					Significant
	Fair Value		Quoted prices in		other		Significant
	as of		active markets for		observable		unobservable
	March 31,		identical assets		inputs		inputs
Description	2020		(Level 1)		(Level 2)		(Level 3)
Assets:
Short term investment:
—Trading securities	$	40.1	$	40.1	$	—	$	—
—Available-for-sale debt securities:
Corporate bonds		—		—		—		—
Asset backed securities		0.3		—		0.3		—
Mortgage backed securities		0.3		—		0.3		—
Accounts receivable:
—Embedded derivatives—Not classified as hedges:
Provisionally priced sales:
Copper		187.2		187.2		—		—
Molybdenum		125.1		125.1		—		—
Total	$	353.0	$	352.4	$	0.6	$	—

	Fair Value at Measurement Date Using:
					Significant
	Fair Value		Quoted prices in		other		Significant
	as of		active markets for		observable		unobservable
	December 31,		identical assets		inputs		inputs
Description	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
Short term investment:
—Trading securities	$	80.0	$	80.0	$	—	$	—
—Available-for-sale debt securities:
Corporate bonds		—		—		—		—
Asset backed securities		0.4		—		0.4		—
Mortgage backed securities		0.3		—		0.3		—
Accounts receivable:
—Embedded derivatives-Not classified as hedges:
Provisionally priced sales:
Copper		326.5		326.5		—		—
Molybdenum		126.8		126.8		—		—
Total	$	534.0	$	533.3	$	0.7	$	—

The Company’s short-term trading securities investments are classified as Level 1 because they are valued using quoted prices of the same securities as they consist of bonds issued by public companies and publicly traded. The Company’s short-term available-for-sale investments are classified as Level 2 because they are valued using quoted prices for similar investments.

The Company’s accounts receivables associated with provisionally priced copper sales are valued using quoted market prices based on the forward price on the LME or on the COMEX. Such value is classified within Level 1 of the fair value hierarchy. Molybdenum prices are established by reference to the publication Platt’s Metals Week and are considered Level 1 in the fair value hierarchy.

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NOTE 13 — REVENUE:

The Company’s net sales were $1,719.7 million in the three months ended March 31, 2020, compared to $1,753.4 million in the same period of 2019. The geographic breakdown of the Company’s sales is as follows (in millions):

	Three Months Ended March 31, 2020
			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
The Americas:
Mexico	$	363.6	$	99.2	$	—	$	(26.8)	$	436.0
United States		258.2		0.2		40.9		—		299.3
Peru		—		3.0		73.1		—		76.1
Brazil		—		3.5		54.5		—		58.0
Chile		1.9		—		48.2		—		50.1
Other American countries		8.3		0.9		0.2		—		9.4
Europe:
Switzerland		172.5		14.9		66.5		—		253.9
Italy		—		3.4		66.8		—		70.2
Spain		46.6		—		—		—		46.6
Other European countries		20.3		6.1		52.9		—		79.3
Asia:
Singapore		61.7		3.2		135.8		—		200.7
Japan		9.4		—		98.7		—		108.1
Other Asian countries		11.2		0.1		20.7		—		32.0
Total	$	953.7	$	134.5	$	658.3	$	(26.8)	$	1,719.7

	Three Months Ended March 31, 2019
			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
The Americas:
Mexico	$	351.3	$	86.8	$	—	$	(19.9)	$	418.2
United States		279.0		1.4		6.7		—		287.1
Peru		1.6		—		85.7		—		87.3
Brazil		—		7.2		48.3		—		55.5
Chile		1.1		—		20.0		—		21.1
Other American countries		12.8		0.5		1.8		—		15.1
Europe:
Switzerland		225.4		12.0		110.4		—		347.8
Italy		29.2		5.5		47.3		—		82.0
Spain		45.5		—		—		—		45.5
Other European countries		22.9		5.8		53.9		—		82.6
Asia:
Singapore		58.5		1.8		52.6		—		112.9
Japan		9.8		—		117.5		—		127.3
Other Asian countries		35.0		0.1		35.9		—		71.0
Total	$	1,072.1	$	121.1	$	580.1	$	(19.9)	$	1,753.4

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The following table presents information regarding the sales value by reporting segment of the Company’s significant products for the three months ended March 31, 2020 and 2019 (in millions):

	Three Months Ended March 31, 2020
			Mexican
	Mexican		IMMSA		Peruvian		Corporate, Other &		Total
	Open-pit		Unit		Operations		Eliminations		Consolidated
Copper	$	799.7	$	18.0	$	561.0	$	(12.9)	$	1,365.8
Molybdenum		72.0		—		54.1		—		126.1
Silver		44.6		35.4		20.0		(11.9)		88.1
Zinc		—		65.4		—		(0.5)		64.9
Other		37.4		15.7		23.2		(1.5)		74.8
Total	$	953.7	$	134.5	$	658.3	$	(26.8)	$	1,719.7

	Three Months Ended March 31, 2019
			Mexican
	Mexican		IMMSA		Peruvian		Corporate, Other &		Total
	Open-pit		Unit		Operations		Eliminations		Consolidated
Copper	$	895.1	$	11.0	$	522.4	$	(12.9)	$	1,415.6
Molybdenum		90.1		—		28.2		—		118.3
Zinc		—		77.1		—		(0.4)		76.7
Silver		50.4		17.3		14.9		(5.8)		76.8
Other		36.5		15.7		14.6		(0.8)		66.0
Total	$	1,072.1	$	121.1	$	580.1	$	(19.9)	$	1,753.4

The opening and closing balances of receivables by reporting segment of the Company were as follows (in millions):

			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
As of March 31, 2020:
Trade receivables	$	411.1	$	44.4	$	254.2	$	—	$	709.7
Related parties, current		27.4		—		—		7.9		35.3
Related parties, non-current		59.0		—		—		—		59.0
As of December 31, 2019:
Trade receivables	$	477.8	$	38.0	$	317.1	$	—	$	832.9
Related parties, current		22.1		—		—		7.9		30.0
Related parties, non-current		59.5		—		—		—		59.5

As of March 31, 2020, the Company has long-term contracts with promises to deliver the following products in 2020:

Copper concentrates (in tons)	870,000
Copper cathodes (in tons)	48,000
Molybdenum concentrates (in tons)	24,061
Sulfuric acid (in tons)	292,400

Provisionally priced sales: At March 31, 2020, the Company has recorded provisionally priced sales of copper at average forward prices per pound, and molybdenum at the March 31, 2020 market price per pound. These sales are subject to final pricing based on the average monthly London Metal Exchange (“LME”), or New York Commodities Exchange (“COMEX”), copper prices and Dealer Oxide molybdenum prices in the future month of settlement.

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Following are the provisionally priced copper and molybdenum sales outstanding at March 31, 2020:

	Sales volume	Priced at
	(million lbs.)	(per pound)	Month of settlement
Copper	83.5	2.24	April 2020 through July 2020
Molybdenum	14.8	8.43	April 2020 through July 2020

The provisional sales price adjustment included in accounts receivable and net sales at March 31, 2020 includes negative adjustments of $15.3 million and $20.6 million for copper and molybdenum, respectively.

Management believes that the final pricing of these sales will not have a material effect on the Company’s financial position or results of operations.

NOTE 14 — SEGMENT AND RELATED INFORMATION:

Company management views Southern Copper as having three reportable segments and manages it on the basis of these segments. The reportable segments identified by the Company are: the Peruvian operations, the Mexican open-pit operations and the Mexican underground mining operations segment identified as the IMMSA unit.

The three reportable segments identified are groups of mines, each of which constitute an operating segment, with similar economic characteristics, type of products, processes and support facilities, similar regulatory environments, similar employee bargaining contracts and similar currency risks. In addition, each mine within the individual group earns revenues from similar type of customers for their products and services and each group incurs expenses independently, including commercial transactions between groups.

Financial information is regularly prepared for each of the three segments and the results of the Company’s operations are regularly reported to Senior Management on the segment basis. Senior Management of the Company focus on operating income and on total assets as measures of performance to evaluate different segments and to make decisions to allocate resources to the reported segments. These are common measures in the mining industry.

Financial information relating to Southern Copper’s segments is as follows:

	Three Months Ended March 31, 2020
	(in millions)
			Mexican				Corporate, other
	Mexican		IMMSA		Peruvian		and
	Open-pit		Unit		Operations		eliminations		Consolidated
Net sales outside of segments	$	953.7	$	107.7	$	658.3	$	—	$	1,719.7
Intersegment sales		—		26.8		—		(26.8)		—
Cost of sales (exclusive of depreciation, amortization and depletion)		465.1		112.2		411.0		(32.5)		955.8
Selling, general and administrative		16.7		2.4		9.1		0.9		29.1
Depreciation, amortization and depletion		91.4		10.6		81.3		9.6		192.9
Exploration		0.7		2.9		1.6		3.4		8.6
Operating income	$	379.8	$	6.4	$	155.3	$	(8.2)		533.3
Less:
Interest, net										(89.0)
Other income (expense)										(7.4)
Income taxes										(221.7)
Equity earnings of affiliate										1.0
Non-controlling interest										(1.4)
Net income attributable to SCC									$	214.8
Capital investment	$	38.2	$	25.3	$	35.2	$	2.3	$	101.0
Property and mine development, net	$	4,420.7	$	505.7	$	3,832.5	$	529.8	$	9,288.7
Total assets	$	7,057.2	$	815.9	$	4,687.5	$	3,651.5	$	16,212.1

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	Three Months Ended March 31, 2019
	(in millions)
			Mexican				Corporate, other
	Mexican		IMMSA		Peruvian		and
	Open-pit		Unit		Operations		eliminations		Consolidated
Net sales outside of segments	$	1,072.1	$	101.2	$	580.1	$	—	$	1,753.4
Intersegment sales		—		19.9		—		(19.9)		—
Cost of sales (exclusive of depreciation, amortization and depletion)		419.6		100.0		348.0		(23.5)		844.1
Selling, general and administrative		16.3		1.8		9.6		0.8		28.5
Depreciation, amortization and depletion		85.0		12.9		74.9		8.8		181.6
Exploration		0.4		2.0		2.9		0.2		5.5
Operating income	$	550.8	$	4.4	$	144.7	$	(6.2)		693.7
Less:
Interest, net										(74.1)
Other income (expense)										5.4
Income taxes										(237.9)
Equity earnings of affiliate										2.1
Non-controlling interest										(1.0)
Net income attributable to SCC									$	388.2
Capital investment	$	58.6	$	25.0	$	88.4	$	1.1	$	173.1
Property and mine development, net	$	4,780.6	$	460.9	$	3,798.4	$	343.7	$	9,383.6
Total assets	$	8,375.0	$	942.2	$	4,636.6	$	1,588.8	$	15,542.6

NOTE 15 — SUBSEQUENT EVENTS:

Dividends:

On April 23, 2020, the Board of Directors authorized a dividend of $0.20 per share payable on May 26, 2020 to shareholders of record at the close of business on May 13, 2020.

Financing:

On April 16, 2020, the Company made a payment of $410.8 million related to the first tranche of the fixed-rate ten-year senior unsecured notes issued on April 2010. This included the principal payment of $400 million and $10.8 million of accrued interest as of the aforementioned payment date.

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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion provides information that management believes is relevant to an assessment and understanding of the condensed consolidated financial condition and results of operations of Southern Copper Corporation and its subsidiaries (collectively, “SCC”, “the Company”, “our”, and “we”). This item should be read in conjunction with our interim unaudited Condensed Consolidated Financial Statements and the notes thereto included in this quarterly report. Additionally, the following discussion and analysis should be read in conjunction with the Management Discussion and Analysis of Financial Condition and Results of Operations and the Consolidated Financial Statements included in Part II of our annual report on Form 10-K for the year ended December 31, 2019.

EXECUTIVE OVERVIEW

Business: Our business is primarily the production and sale of copper. In the process of producing copper, a number of valuable metallurgical by-products are recovered, which we also produce and sell. Market forces outside of our control largely determine the sale prices for our products. Our management, therefore, focuses on value creation through copper production, cost control, production enhancement and maintaining a prudent capital structure to remain profitable. We endeavor to achieve these goals through capital spending programs, exploration efforts and cost reduction programs. Our aim is to remain profitable during periods of low copper prices and to maximize financial performance in periods of high copper prices.

We are one of the world’s largest copper mining companies in terms of production and sales with our principal operations in Peru and Mexico. We also have active ongoing exploration programs in Chile, Argentina and Ecuador. In addition to copper, we produce significant amounts of other metals, either as a by-product of the copper process or in a number of dedicated mining facilities in Mexico.

Outlook: Various key factors will affect our outcome. These include, but are not limited to, some of the following:

● Changes in copper, molybdenum, silver and zinc prices: In the first quarter of 2020, the average LME and COMEX copper prices were $2.56 and $2.57 per pound, respectively, 9.2% and 8.5% lower than in the same period of 2019, respectively. During the first quarter of 2020 per pound LME spot copper prices ranged from $2.09 to $2.86. Average molybdenum prices in the first quarter of 2020 decreased 18.3% and zinc prices decreased by 21.1%, when compared to the average prices in the first quarter of 2019. Average silver prices increased 8.7% in the first quarter of 2020 when compared to the same period of 2019.

● Sales structure: In the first quarter of 2020, approximately 79% of our revenue came from the sale of copper, 7% from molybdenum, 5% from silver, 4% from zinc and 5% from various other products, including gold, sulfuric acid and other materials.

● Copper: During the first quarter of 2020 the LME copper price decreased, from an average of $2.82 per pound in the first quarter of 2019 to $2.56 (-9.2%). Currently we are seeing prices in the range of $2.20 to $2.30 per pound as a reflection of the impact of the COVID-19 crisis on the demand and on copper supply. The world is currently experiencing the public health, financial and economic impacts of the COVID-19 pandemic. Since it is affecting both, supply and demand, at this point it is difficult to assess the full effect of this crisis on the copper market balance and on copper prices.

On a normal year, we expect to have a seasonal copper inventories increase in the first quarter of the year due to the New Year festivities of China and the winter impact on demand. This year we had the COVID-19 outbreak as an additional factor affecting copper demand and supply, and copper prices. At the end of 2019, copper demand for refined copper was estimated at 23.6 million tons and global inventories were 599,000 tons. By the end of February 2020, they add up to 917,000 tons, or 318,000 tons higher than the inventories at the end of 2019. On Friday, April 24, global inventories were estimated at 925,000 tons, this is 326,000 tons over the closing of 2019 and a relatively stable mark since they increased at the end of February. We believe this reflects the mentioned seasonal effect as well as an additional market surplus created by the COVID-19 pandemic.

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In a normal year, we expect the additional inventories to be partially absorbed through the rest of the year. For 2020, it is difficult to estimate when this may happen since we are seeing a much weaker demand than last year.

● Molybdenum: Represented 7.3% of our sales in the first quarter of 2020. Molybdenum prices averaged $9.56 per pound in the first quarter of 2020, compared to $11.70 in the same period of 2019, a 18.3% decrease.

Molybdenum is mainly used in the production of special alloys for stainless steel that require significant hardness and corrosion and heat resistance. New uses for this metal are in lubricants, in sulfur filtering of heavy oils and shale gas production.

● Zinc: Represented 3.8% of our sales in the first quarter of 2020. Zinc has very good long term fundamentals due to its significant industrial consumption and the expected production.

● Silver: Represented 5.1% of our sales in the first quarter of 2020 and it is currently our second by-product. We believe that silver prices will have support due to its industrial uses as well as its linkage to gold as a value shelter in times of economic uncertainty.

●Cost: Our operating costs and expenses for the first quarter of 2020 and 2019 were as follows:

					Variance
	2020		2019		Value		%
Operating costs and expenses (in millions)	$	1,186.4	$	1,059.7	$	126.7		12.0	%

The increase was mainly due to higher cost of sales at all our operating segments; as well as higher depreciation, amortization and depletion at our Peruvian and Mexican open pit segments.

● Capital Investments: In the first quarter of 2020 we spent $101.0 million on capital investments, 41.7% lower than in the same period of 2019, and represented 46.7% of net income.

● COVID-19: In March 2020, the WHO classified the COVID-19 outbreak as a pandemic based on the rapid increase in global exposure. The full impact of the COVID-19 outbreak will continue and its magnitude on the Company’s financial condition, liquidity and future results of operations is uncertain. Senior Management is actively monitoring the global situation on the Company´s financial condition, liquidity, operations, suppliers, industry and workforce and focusing principally on the health, safety and well-being of our employees, their families and the communities where we have operations. As of March 31, 2020, there have not been major delays in the supply of material and services critical for the operations, and sales. Additionally, shipments of products and collections have had no known major delays.

As of March 31, 2020, despite the drop in copper price which decreased to an average of $2.56 per pound (LME) in the first quarter 2020 compared with $2.67 in the fourth quarter 2019 and $2.82 in the first quarter of 2019, the Company maintains a solid financial position and performance as shown in the table below:

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	Mar-20	Dec-19	Mar-19
($ in millions, except ratios)
Cash and cash equivalents	2,051.6	1,925.1	737.0
Accounts receivable	789.7	911.8	1,035.5
Total assets	16,212.1	16,407.4	15,542.6
Long term debt	6,541.8	6,541.0	5,960.9
Sales	1,719.7	7,285.6	1,753.4
RATIOS
Current assets to current liabilities	2.98	2.83	2.83
Accounts receivable turnover (1)	2.18	7.99	1.69
Total debt ratio (2)	0.43	0.42	0.38
Net income margin (3)	12.5%	20.4%	22.1%

(1) Represents net sales divided by accounts receivable.

(2) Represents total debt divided by total assets.

(3) Represents net income divided by net sales, as a percentage.

Governmental authorities have declared that essential economic activities must continue during the COVID-19 health emergency. These activities include industrial mining and/or any other activity necessary to secure the production and distribution of essential services such as electricity, medical and hospital infrastructure and manufacture of health related supplies and technological equipment, which necessarily implies critical components and goods only produced by industrial mining, which are essential in the global supply chains to manufacture products and services to fight the pandemic, such as steel, copper, gold, coal, silver, zinc and cement, among many others.

Given the nature of mining operations, which are highly automated, conducted in remote locations and with mandatory use of personal safety equipment at all the mines, it is easier to implement and comply with COVID-19 protective measures, such as physical isolation and access control. Industrial mining uses advanced and reliable machinery and does not require high physical concentration of employees. In many cases, workers fulfill their duties maintaining distances of more than 100 meters from their closest coworkers.

At the present time, our operations are in compliance with all sanitary and government regulations and maintaining proper environmental safeguards. It should be noted that to date, there have been no known cases of COVID-19 contagion among our employees in our mining facilities in Mexico and Peru. Our COVID-19 emergency protocol has reinforced preventive measures such as disinfecting, clinical monitoring before work, cleaning and sanitizing of work areas and respect for social distancing. We have also restricted access to contractors, suppliers and personnel that is not indispensable and enforced multiple actions to limit workforce exposure to COVID-19 such as travel restrictions, prohibiting face-to-face meetings and urging frequent hand washing, as well as adherence to all other health, safety and social distancing measures issued by governmental authorities.

As the spread of COVID-19 continues, reduced demand for products (including disruptions at the facilities of our transportation service providers or supply vendors) could have a material adverse effect on our business, operations and financial performance.

KEY MATTERS:

We discuss below several matters that we believe are important to understand our results of operations and financial condition. These matters include, (i) our earnings, (ii) our production, (iii) our “operating cash costs” as a measure of our performance, (iv) metal prices, (v) business segments, (vi) the effect of inflation and other local currency issues, and (vii) our capital investment and exploration program.

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Earnings: The table below highlights key financial and operational data of our Company for the three months ended March 31, 2020 and 2019 (in millions, except copper price, percentages and per share amounts):

		Three months ended March 31,
	2020		2019		Variance		% Change
Copper price LME		2.56		2.82		(0.26)	(9.2)	%
Pounds of copper sold		554.5		501.3		53.2	10.6	%
Net sales	$	1,719.7	$	1,753.4	$	(33.7)	(1.9)	%
Operating income	$	533.3	$	693.7	$	(160.4)	(23.1)	%
Net income attributable to SCC	$	214.8	$	388.2	$	(173.4)	(44.7)	%
Earnings per share	$	0.28	$	0.50	$	(0.22)	(44.0)	%
Dividends per share	$	0.40	$	0.40	$	—	—	%

Net sales in the first quarter of 2020 were 1.9% lower than in the same period of 2019 mainly as a result of lower copper (-9.2% LME) and molybdenum (-18.3%) prices. This effect was largely offset by higher sales volumes of copper (+10.6%), molybdenum (+41.9%), silver (+8.2%) and zinc (+7.1%).

Net income in the first quarter of 2020 was 44.7% lower than in the first quarter of 2019. This decrease was mainly due to lower sales and higher operating costs (+12.0%). Costs increased due to higher sales volumes, leachable material and third parties copper purchases. The higher costs were partially offset by lower fuel cost and the effect of exchange rates depreciation on local currencies costs.

Production: The table below highlights our mine production data for the three months ended March 31, 2020 and 2019:

	Three months ended March 31,
	2020	2019	Variance	% Change
Copper (in million pounds)	533.5	504.0	29.5	5.9	%
Molybdenum (in million pounds)	15.8	11.3	4.5	39.8	%
Silver (in million ounces)	5.3	4.3	1.0	21.6	%
Zinc (in million pounds)	42.5	40.9	1.6	3.8	%

The table below highlights our copper production data for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
Copper (in million pounds):	2020	2019	Variance	% Change
Toquepala	133.5	116.6	16.9	14.4	%
Cuajone	89.1	72.3	16.8	23.2	%
La Caridad	73.6	71.7	1.9	2.6	%
Buenavista	232.3	239.6	(7.3)	(3.0)	%
IMMSA	5.0	3.8	1.2	31.6	%
Total mined copper	533.5	504.0	29.5	5.9	%

Mined copper production in the first quarter of 2020 increased by 5.9% to 533.5 million pounds compared to 504.0 million pounds in the first quarter of 2019. This increase was principally due to:

● Higher production at our Peruvian mines as result of the new Toquepala concentrator and higher ore grades and recoveries in the Cuajone mine; partially offset by

● Lower production at the Buenavista mine due to lower ore grades.

Molybdenum production increased 39.8% in the first quarter of 2020 when compared with the first quarter of 2019 as result of higher production at all our mines, principally at the Toquepala mine (+280.3%) due to the new molybdenum plant that started production in April 2019 and higher production at the Cuajone mine (+42.6%) as result of higher grades.

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Silver mine production increased by 21.6% in the first quarter of 2020 due to higher production at all our mines, highlighting the IMMSA operations (+35.7%), principally at the San Martin mine.

Mined zinc production increased 3.8% in the first quarter of 2020, compared with the same period of 2019 , due to higher production at the Charcas, Santa Barbara and San Martin mines, partially offset by lower production at the Santa Eulalia mine, which suspended operations due to a flooding.

Operating Cash Costs: An overall benchmark used by us and a common industry metric to measure performance is operating cash costs per pound of copper produced. Operating cash cost is a non-GAAP measure that does not have a standardized meaning and may not be comparable to similarly titled measures provided by other companies. This non-GAAP information should not be considered in isolation or as substitute for measures of performance determined in accordance with GAAP. A reconciliation of our operating cash cost per pound of copper produced to the cost of sales (exclusive of depreciation, amortization and depletion) as presented in the condensed consolidated statement of earnings is presented under the subheading, “Non-GAAP Information Reconciliation” on page 51. We disclose operating cash cost per pound of copper produced, both before and net of by-product revenues.

We define operating cash cost per pound of copper produced before by-product revenues as cost of sales (exclusive of depreciation, amortization and depletion), plus selling, general and administrative charges, treatment and refining charges net of sales premiums; less the cost of purchased concentrates, workers’ participation and other miscellaneous charges, including royalty charges, and the change in inventory levels; divided by total pounds of copper produced by our own mines.

In our calculation of operating cash cost per pound of copper produced, we exclude depreciation, amortization and depletion, which are considered non-cash expenses. Exploration is considered a discretionary expenditure and is also excluded. Workers’ participation provisions are determined on the basis of pre-tax earnings and are also excluded. Additionally excluded from operating cash costs are items of a non-recurring nature and the mining royalty charge as it is based on various calculations of taxable income, depending on which jurisdiction, Peru or Mexico, is imposing the charge. We believe these adjustments will allow our management and stakeholders to see a presentation of our controllable cash cost, which we consider is one of the lowest of copper producing companies of similar size.

We define operating cash cost per pound of copper produced net of by-product revenues as operating cash cost per pound of copper produced, as defined in the previous paragraph, less by-product revenues and net revenue (loss) on sale of metal purchased from third parties.

In our calculation of operating cash cost per pound of copper produced, net of by-product revenues, we credit against our costs the revenues from the sale of all our by-products, including, molybdenum, zinc, silver, gold, etc. and the net revenue (loss) on sale of metals purchased from third parties. We disclose this measure including the by-product revenues in this way because we consider our principal business to be the production and sale of copper. As part of our copper production process, much of our by-products are recovered. These by-products, as well as the processing of copper purchased from third parties, are a supplemental part of our production process and their sales value contribute to cover part of our incurred fixed costs. We believe that our Company is viewed by the investment community as a copper company, and is valued, in large part, by the investment community’s view of the copper market and our ability to produce copper at a reasonable cost.

We believe that both of these measures are useful tools for our management and our stakeholders. Our cash costs before by-product revenues allow us to monitor our cost structure and address with operating management areas of concern. The measure operating cash cost per pound of copper produced net of by-product revenues is a common measure used in the copper industry and is a useful management tool that allows us to track our performance and better allocate our resources. This measure is also used in our investment project evaluation process to determine a project’s potential contribution to our operations, its competitiveness and its relative strength in different price scenarios. The expected contribution of by-products is generally a significant factor used by the copper industry in determining whether to move forward with the development of a new mining project. As the price of our by-product commodities can have significant fluctuations from period to period, the value of its contribution to our costs can be volatile.

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Our operating cash cost per pound of copper produced, before and net of by-product revenues, is presented in the table below for the three months ended March 31, 2020 and 2019:

Operating cash cost per pound of copper produced (1)

(In millions, except cost per pound and percentages)

		Three Months Ended March 31,
	2020		2019		Variance		% Change
Total operating cash cost before by‑product revenues	$	732.9	$	749.4	$	(16.5)	(2.2)	%
Total by‑product revenues	$	(332.2)	$	(305.7)	$	(26.5)	8.7	%
Total operating cash cost net of by‑product revenues	$	400.7	$	443.7	$	(43.0)	(9.7)	%
Total pounds of copper produced(2)		517.9		491.1		26.8	5.5	%
Operating cash cost per pound before by‑product revenues	$	1.42	$	1.53	$	(0.11)	(7.3)	%
By‑products per pound revenues	$	(0.64)	$	(0.62)	$	(0.02)	2.9	%
Operating cash cost per pound net of by‑product revenues	$	0.77	$	0.91	$	(0.13)	(14.5)	%

(1) These are non-GAAP measures. Please see page 51 for reconciliation to GAAP measure.

(2) Net of metallurgical losses.

As set forth on the above table, our per pound cash cost before by-product revenues and net of it, in the first quarter of 2020, were 7.3% and 14.5% lower when compared with the first quarter of 2019, respectively. This decrease was the result of the unit cost effect of 5.5% higher production and higher by-product revenues.

Metal Prices: The profitability of our operations is dependent on, and our financial performance is significantly affected by, the international market prices for the products we produce, especially for copper, molybdenum, zinc and silver.

We are subject to market risks arising from the volatility of copper and other metal prices. For the remaining nine months of 2020, assuming that expected metal production and sales are achieved, that tax rates are unchanged and giving no effect to potential hedging programs, metal price sensitivity factors would indicate the following change in estimated net income attributable to SCC resulting from metal price changes:

	Copper		Molybdenum		Zinc		Silver
Change in metal prices (per pound except silver—per ounce)	$	0.10	$	1.00	$	0.10	$	1.00
Change in net earnings (in millions)	$	137.8	$	36.6	$	14.6	$	10.5

Business Segments: We view our Company as having three reportable segments and manage it on the basis of these segments. These segments are (1) our Peruvian operations, (2) our Mexican open-pit operations and (3) our Mexican underground operations, known as our IMMSA unit. Our Peruvian operations include the Toquepala and Cuajone mine complexes and the smelting and refining plants, industrial railroad and port facilities that service both mines. The Peruvian operations produce copper, with significant by-product production of molybdenum, silver and other material. Our Mexican open-pit operations include La Caridad and Buenavista mine complexes, the smelting and refining plants and support facilities, which service both mines. The Mexican open pit operations produce copper, with significant by-product production of molybdenum, silver and other material. Our IMMSA unit includes five underground mines that produce zinc, lead, copper, silver and gold, a coal mine which produces coal and coke, and several industrial processing facilities for zinc, copper and silver.

Segment information is included in our review of “Results of Operations” in this item and also in Note 14 “Segment and Related Information” of our condensed consolidated financial statements.

Inflation and Exchange Rate Effect of the Peruvian Sol and the Mexican Peso: Our functional currency is the U.S. dollar and our revenues are primarily denominated in U.S. dollars. Significant portions of our operating costs are denominated in Peruvian sol and Mexican pesos. Accordingly, when inflation and currency devaluation/appreciation of the Peruvian currency and Mexican currency occur, our operating results can be affected. In recent years, we do believe

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such changes have not had a material effect on our results and financial position. Please see Item 3. “Quantitative and Qualitative Disclosures about Market Risk” for more detailed information.

Capital Investment Programs: We made capital investments of $101.0 million in the three months ended March 31, 2020, compared with $173.1 million in the same period of 2019. In general, the capital investments and investment projects described below are intended to increase production, decrease costs or address social and environmental commitments.

Set forth below are descriptions of some of our current expected capital investment programs. We expect to meet the cash requirements for these projects from cash on hand, internally generated funds and from additional external financing, including funding received in September 2019. All capital spending plans will continue to be reviewed and adjusted to respond to changes in the economy, market conditions or the COVID-19 pandemic.

Projects in Mexico:

Buenavista Zinc - Sonora: This project is located within the Buenavista facility and includes the development of a new concentrator to produce approximately 80,000 tons of zinc and 20,000 tons of copper per year. Currently, we have completed the basic engineering and the detailed engineering is in process. The site preparation has started and the purchase orders for the major equipment have been placed. The project is fully permitted. The project´s budget is $413 million, and we expect to initiate operations in the third quarter of 2022. When completed, this new facility will double the Company’s zinc production capacity and will provide 490 direct jobs and 1,470 indirect jobs.

Pilares - Sonora: This project, located six kilometers from La Caridad, will be developed as an open-pit mine operation with an annual production capacity of 35,000 tons of copper in concentrate. The ore will be transported from the pit to the primary crushers of the La Caridad copper concentrator through a new 25-meter wide off-road facility for mining trucks, and will significantly improve the over-all mineral ore grade (combining the 0.78% expected from Pilares with 0.34% from La Caridad). The budget for Pilares is $159 million and we expect it to start production during the first half of 2022. The connection road between Pilares mine and La Caridad mine is now under construction.

El Pilar - Sonora: This is a low capital intensity copper development project strategically located in Sonora, Mexico, approximately 45 kilometers from our Buenavista mine. Its copper oxide mineralization contains estimated proven and probable reserves of 325 million tons of ore with an average copper grade of 0.287%. El Pilar will operate as a conventional open-pit mine and copper cathodes will be produced using the highly cost efficient and environmentally friendly SX-EW technology. We estimate a development investment of approximately $310 million. The construction of the pilot plant is finished and the production tests have begun. We expect this project to start production during 2023.

The San Martin mine recovery program. After eleven years of an illegal stoppage, we resumed control of the San Martin mine in August 2018. The San Martin facilities deteriorated during this period but we undertook a major renovation and restarted operations during the second quarter of 2019. Currently, the mine has 200,000 tons of ore and the concentrator has initiated production. In 2019, we produced 5,837 tons of zinc, 1.2 million ounces of silver and 1,335 tons of copper. The budget of the restoration program is $97.7 million. At March 31, 2020 the program had a total expense of $78.6 million.

Projects in Peru:

Our main capital projects in Peru are the following:

Toquepala Expansion Project - Tacna: This $1,320 million project includes a new state-of-the-art concentrator which increased Toquepala’s annual copper production to 258,000 tons in 2019, a 51% production increase, when compared to 2018. Construction of the project was completed and production began in the fourth quarter of 2018. Full production was reached in the second quarter of 2019. We are in the administrative close-out process for this project.

Tailings disposal at Quebrada Honda - Moquegua: This project increases the height of the existing Quebrada Honda dam to impound future tailings from the Toquepala and Cuajone mills and will extend the expected life of this tailings facility

41

by 25 years. The first stage and construction of the drainage system for the lateral dam is finished. We finished the second stage with the installation of a new cyclone battery station that allows us to place more slurry at the dams. We are evaluating improvements in operational processes of this facility. The project has a total budgeted cost of $116 million and we have invested $105.5 million through March 31, 2020.

Potential projects

We have a number of other projects that we may develop in the future. We evaluate new projects on the basis of our long-term corporate objectives, expected return on investment, environmental concerns, required investment and estimated production, among other considerations. All capital spending plans will continue to be reviewed and adjusted to respond to changes in the economy, market conditions or the COVID-19 pandemic.

El Arco - Baja California: This is a world class copper deposit located in the central part of the Baja California peninsula, with ore reserves of over 2.6 billion tons with an ore grade of 0.410% and 0.113 grams of gold per ton. This project includes an open-pit mine combining concentrator and SX-EW operations with an estimated production of 135,000 tons of copper and 64,000 ounces of gold annually. We are currently in the land acquisition process for the project.

Tia Maria - Arequipa: On July 8, 2019, we received the construction permit for this 120,000 ton annual SX-EW copper greenfield project with a total capital budget of $1,400 million. This permit was obtained after completing an exhaustive review process, complying with all established regulatory requirements and addressing all observations raised.

The challenges to the construction permit were overcome when on October 30, 2019, the Mining Council of the Peruvian Ministry of Energy and Mines ratified the construction permit for the Tia Maria project.

We guarantee to the population of Islay that the Tia Maria project will not adversely affect other local economic activities because we will use desalinated seawater for our operations and, for the transport of our supplies and copper production, we will build an 32 kilometer industrial railway and an access road at a safe distance from the Tambo Valley.

Our social programs in education, healthcare and productive development will continue to improve the quality of life, and the agricultural and livestock activities in the Tambo Valley, as well as fishing and tourism in Islay. During the construction and operation phase, hiring local labor will be a priority. For this purpose, we have successfully launched in June 2019 the free technical training program “Forging the Future”, which will benefit 700 persons in this province in 2019-20. After training, the participants will be eligible to apply for one of the estimated 9,000 jobs (3,600 direct and 5,400 indirect) required during the Tia Maria construction phase. We strongly believe that the initiation of construction activities for Tia Maria will generate significant economic opportunities for the Islay province and the Arequipa region.

When in operation, we expect Tia Maria will generate a significant contribution through mining royalties and taxes from day-one and will directly employ 600 workers and indirectly provide jobs for another 4,200 workers.

This greenfield project, located in Arequipa, Peru, will use state of the art SX-EW technology with the highest international environmental standards. SX-EW facilities are the most environmentally friendly in the industry due to their technical process with no emissions released into the atmosphere. 

Los Chancas - Apurimac: This greenfield project, located in Apurimac, Peru, is a copper and molybdenum porphyry deposit. Current estimates indicate the presence of 545 million tons of mineralized material with a copper content of 0.59%, molybdenum content of 0.04% and 0.039 grams of gold per ton, as well as 181 million tons of mineralized leachable material with a total copper content of 0.357%. Los Chancas project envisions an open-pit mine with a combined operation of concentrator and SX-EW processes to annually produce 130,000 tons of copper and 7,500 tons of molybdenum. The estimated capital investment is $2,800 million and is expected to be in operation in 2026. In 2019, we continued with the development of social and environmental improvements for the local communities. For 2020, we plan to continue with these activities and to conclude the environmental impact assessment of the project.

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Michiquillay Project - Cajamarca: On June 12, 2018, Southern Copper signed a contract and made an initial payment of $12.5 million for the acquisition of the Michiquillay project in Cajamarca, Peru. The Company has created a multidisciplinary management team to plan the development of this project. As part of this plan, the Company has established contact with the local and regional authorities and communities in order to promote programs for the sustainable development of the area. In 2019, we developed social and environmental programs for the local communities and began a semi-detailed environmental impact assessment. This will allow us to begin a 40,000 meter diamond drilling program in 2021, to verify and update the estimated mineralized materials of the project.

Michiquillay is a world class mining project with estimated mineralized material of 1,150 million tons with an estimated copper grade of 0.63%. When developed, we expect Michiquillay to produce 225,000 tons of copper per year (along with by-products of molybdenum, gold and silver) for an initial mine life of more than 25 years, at a competitive cash-cost. We estimate an investment of approximately $2.5 billion will be required and expect production start-up by 2026, with Michiquillay becoming one of Peru´s largest copper mines. The project will create significant business opportunities in the Cajamarca region, generate new jobs for the local communities and contribute with taxes and royalties to the national, regional and local governments.

The above information is based on estimates only. We cannot make any assurances that we will undertake any of these projects or that the information noted is accurate.

ACCOUNTING ESTIMATES

Our discussion and analysis of financial condition and results of operations, as well as quantitative and qualitative disclosures about market risks, are based upon our consolidated financial statements, which have been prepared in accordance with U.S. GAAP. Preparation of these consolidated financial statements requires our management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We make our best estimate of the ultimate outcome for these items based on historical trends and other information available when the financial statements are prepared. Changes in estimates are recognized in accordance with the accounting rules for the estimate, which is typically in the period when new information becomes available to management. Areas where the nature of the estimate makes it reasonably possible that actual results could materially differ from amounts estimated include: ore reserves, revenue recognition, ore stockpiles on leach pads and related amortization, estimated impairment of assets, asset retirement obligations, determination of discount rates related to the financial lease liabilities, classification of operating leases versus financial leases, valuation allowances for deferred tax assets, unrecognized tax benefits and fair value of financial instruments. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions.

Long-term inventory-Ore stockpiles on leach pads:

On January 1, 2020 the Company aligned its capitalization method for its Peruvian and Mexican operations to capitalize based on the allocation of copper content recoverable between ore and leach material. In addition, the inventory consumption is now valued at the average unit cost, instead of the declining percentages of recovery method used previously. As a result of these changes, the value of capitalized material decreased by $48.8 million and the consumption increased by $10.3 million.

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RESULTS OF OPERATIONS

The following highlights key financial results for the three months ended March 31, 2020 and 2019 (in millions):

	Three Months Ended
	March 31,
Statement of Earnings Data	2020		2019		Variance		% Change
Net sales	$	1,719.7	$	1,753.4	$	(33.7)	$	(1.9)	%
Operating costs and expenses		(1,186.4)		(1,059.7)		(126.7)		12.0	%
Operating income		533.3		693.7		(160.4)		(23.1)	%
Non‑operating income (expense)		(96.4)		(68.7)		(27.7)		40.3	%
Income before income taxes		436.9		625.0		(188.1)		(30.1)	%
Income taxes		(221.7)		(237.9)		16.2		(6.8)	%
Equity earnings of affiliate		1.0		2.1		(1.1)		(52.4)	%
Net income attributable to non‑controlling interest		(1.4)		(1.0)		(0.4)		40.0	%
Net income attributable to SCC	$	214.8	$	388.2	$	(173.4)	$	(44.7)	%

NET SALES

Net sales in the first quarter of 2020 were 1.9% lower than in the same period of 2019 mainly as a result of lower copper (-9.2% LME) and molybdenum (-18.3%) prices. This effect was largely offset by higher sales volumes of copper (+10.6%), molybdenum (+41.9%) and silver (+8.2%).

The table below outlines the average published market metals prices for our metals for the three months ended March 31, 2020 and 2019:
	Three Months Ended March 31,
	2020		2019		% Change
Copper price ($per pound—LME)	$	2.56	$	2.82	(9.2)	%
Copper price ($per pound—COMEX)	$	2.57	$	2.81	(8.5)	%
Molybdenum price ($per pound)(1)	$	9.56	$	11.70	(18.3)	%
Zinc price ($per pound—LME)	$	0.97	$	1.23	(21.1)	%
Silver price ($per ounce—COMEX)	$	16.87	$	15.52	8.7	%

(1) Platt’s Metals Week Dealer Oxide

The table below provides our metal sales as a percentage of our total net sales for the three months ended March 31, 2020 and 2019:

	Three Months Ended
	March 31,
Sales as a percentage of total net sales	2020		2019
Copper	79.4	%	80.7	%
Molybdenum	7.3	%	6.7	%
Silver	5.1	%	4.4	%
Zinc	3.8	%	4.4	%
Other by‑products	4.4	%	3.8	%
Total	100.0	%	100.0	%

The table below provides our copper sales by type of product for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
Copper Sales (million pounds)	2020	2019	Variance	% Change
Refined (including SX‑EW)	275.7	220.6	55.1	25.0	%
Rod	101.7	96.4	5.3	5.5	%
Concentrates and other	177.1	184.3	(7.2)	(3.9)	%
Total	554.5	501.3	53.2	10.6	%

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The table below provides our copper sales volume by type of product as a percentage of our total copper sales volume for the three months ended March 31, 2020 and 2019:

	Three months ended March 31,
Copper Sales by product type	2020		2019
Refined (including SX‑EW)	49.7	%	44.0	%
Rod	18.3	%	19.2	%
Concentrates and other	32.0	%	36.8	%
Total	100.0	%	100.0	%

OPERATING COSTS AND EXPENSES

The table below summarizes the production cost structure by major components as a percentage of total production cost:

	Three months ended March 31,
	2020		2019
Power	16.0	%	16.1	%
Labor	13.6	%	14.6	%
Fuel	12.7	%	14.1	%
Maintenance	22.2	%	19.9	%
Operating material	17.6	%	18.2	%
Other	17.9	%	17.1	%
Total	100.0	%	100.0	%

Operating costs and expenses were $1,186.4 million in the first quarter of 2020 compared to $1,059.7 million in the same period of 2019. The increase of $126.7 million was primarily due to:

Operating cost and expenses for the first quarter of 2019		$	1,059.7
Plus:
•	Higher other cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher cost of metals purchased from third parties and lower capitalized leachable material, partially offset by foreign currency effect, lower inventory consumption and lower fuel costs.		111.7
•	Higher depreciation, amortization and depletion mainly as a result of our expansion and maintenance capital investments.		11.3
•	Higher exploration expense.		3.1
•	Higher selling, general and administrative expenses.		0.6
Operating cost and expenses for the first quarter of 2020		$	1,186.4

NON-OPERATING INCOME (EXPENSES)

Non-operating income and expense were a net expense of $96.4 million in the three months ended March 31, 2020 compared to a net expense of $68.7 million in the three months ended March 31, 2019.

The higher expense of $27.7 million was primarily due to:

● $ 11.8 million of higher interest expense,

● $ 12.8 million of higher miscellaneous expense,

● $ 7.2 million of lower capitalized interest; partially offset by

● $4.1 million of higher interest income.

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INCOME TAXES

	Three Months Ended
	March 31,
	2020			2019
Provision for income taxes ($in millions)	$	221.7		$	237.9
Effective income tax rate		50.8	%		38.1	%

These provisions include income taxes for Peru, Mexico and the United States. In addition, the Mexican royalty, the Peruvian royalty and the Peruvian special mining tax are included in the income tax provision. The increase in the 2020 effective income tax rate from the same period in 2019 was primarily attributed to a movement in exchange gains and losses from the devaluation of Mexican peso and the Peruvian sol versus the U.S. dollar.

SEGMENT RESULT ANALYSIS

We have three segments: the Peruvian operations, the Mexican open-pit operations and the Mexican underground mining operations.

The table below presents information regarding the volume of our copper sales by segment for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
Copper Sales (million pounds)	2020	2019	Variance	% Change
Peruvian operations	228.1	190.2	37.9	19.9	%
Mexican open‑pit	321.8	311.0	10.8	3.5	%
Mexican IMMSA unit	8.7	4.6	4.1	88.9	%
Other and intersegment elimination	(4.1)	(4.4)	0.3	(6.5)	%
Total copper sales	554.5	501.4	53.1	10.6	%

The table below presents information regarding the volume of sales by segment of our significant by-products for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
By‑product Sales (million pounds, except silver—million ounces)	2020	2019	Variance	% Change
Peruvian operations:
Molybdenum contained in concentrate	6.9	2.7	4.2	155.6	%
Silver	1.3	1.1	0.2	18.2	%
Mexican open‑pit operations:
Molybdenum contained in concentrate	9.1	8.6	0.5	5.8	%
Silver	2.8	3.3	(0.5)	(15.2)	%
IMMSA unit
Zinc‑refined and in concentrate	63.7	59.4	4.3	7.2	%
Silver	2.1	1.1	1.0	90.9	%
Other and intersegment elimination
Silver	(0.7)	(0.4)	(0.3)	75.0	%
Total by‑product sales
Molybdenum contained in concentrate	16.0	11.3	4.7	41.9	%
Zinc‑refined and in concentrate	63.7	59.4	4.3	7.2	%
Silver	5.5	5.1	0.4	8.2	%

Peruvian Operations:

	Three Months Ended March 31,
	2020		2019		Variance		% Change
Net sales	$	658.3	$	580.1	$	78.2		13.5	%
Operating costs and expenses		(503.0)		(435.4)		(67.6)		15.5	%
Operating income	$	155.3	$	144.7	$	10.6		7.3	%

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Net sales in the first quarter of 2020 were $658.3 million compared to $580.1 million in the first quarter of 2019. The increase in net sales was mainly the result of higher production from the new concentrator at the Toquepala mine which increased copper (+19.9%), molybdenum (+155.6%) and silver (+18.2%) sales volumes. These effects were partially offset by lower copper (-9.2% LME) and molybdenum (-18.3%) prices.

Operating costs and expenses in the first quarter of 2020 increased by $67.6 million to $503.0 million from $435.4 million in the first quarter of 2019, primarily due to:

Operating costs and expenses for the first quarter of 2019		$	435.4
Plus:
•	Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher cost of metals purchased from third parties and lower capitalized leachable material, partially offset by lower inventory consumption, foreign currency effect and lower labor costs.		63.0
•	Higher depreciation, amortization and depletion expense.		6.4
Less:
•	Lower exploration expenses.		(1.3)
•	Higher selling, general and administrative expenses.		(0.5)
Operating costs and expenses for the first quarter of 2020		$	503.0

Mexican Open-pit Operations:

	Three Months Ended March 31,
	2020		2019		Variance		% Change
Net sales	$	953.7	$	1,072.1	$	(118.4)		(11.0)	%
Operating costs and expenses		(573.9)		(521.3)		(52.6)		10.1	%
Operating income	$	379.8	$	550.8	$	(171.0)		(31.0)	%

Net sales in the first quarter of 2020 were $953.7 million, compared to $1,072.1 million in the first quarter of 2019. The decrease of $118.4 million was principally due to lower copper and molybdenum prices, as well as lower silver sales volume (-15.2%). This effect was slightly offset by higher copper (+3.5%) and molybdenum (+5.8%) sales volumes.

Operating costs and expenses in the first quarter of 2020 increased by $52.6 million to $573.9 million from $521.3 million in the same 2019 period, primarily due to:

Operating costs and expenses for the first quarter of 2019		$	521.3
Plus:
•	Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher cost of metals purchased from third parties and lower capitalized leachable material, partially offset by lower inventory consumption, foreign currency effect and lower power and fuel costs.		45.5
	Higher depreciation, amortization and depletion expense.		6.4
•	Higher selling, general and administrative expenses.		0.4
•	Higher exploration expenses.		0.3
Operating costs and expenses for the first quarter of 2020		$	573.9

Mexican Underground Operations (IMMSA):

	Three Months Ended March 31,
	2020		2019		Variance		% Change
Net sales	$	134.5	$	121.1	$	13.4		11.1	%
Operating costs and expenses		(128.1)		(116.7)		(11.4)		9.8	%
Operating income	$	6.4	$	4.4	$	2.0		45.5	%

Net sales in the first quarter of 2020 were $134.5 million, compared to $121.1 million in the first quarter of 2019. This increase of $13.4 million was primarily due to significantly higher copper (+89.1%), silver (+90.9%) and zinc (+7.2%) sales volumes, as a result of higher production at the San Martin mine. This effect was partially offset by lower copper and zinc prices.

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Operating costs and expenses in the first quarter of 2020 increased by $11.4 million to $128.1 million from $116.7 million in the first quarter of 2019, primarily due to:

Operating costs and expenses for the first quarter of 2019		$	116.7
Plus:
•	Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher inventory consumption and higher repairing materials costs, partially offset by lower cost of metals purchased from third parties.		12.2
•	Higher exploration expenses.		0.9
•	Higher selling, general and administrative expenses.		0.6
Less:
•	Lower depreciation, amortization and depletion expense.		(2.3)
Operating costs and expenses for the first quarter of 2020		$	128.1

Intersegment Eliminations and Adjustments:

The net sales, operating costs and expenses and operating income discussed above will not be directly equal to amounts in our condensed consolidated statement of earnings because the adjustments of intersegment operating revenues and expenses must be taken into account. Please see Note 14 “Segment and Related Information” of the condensed consolidated financial statements.

LIQUIDITY AND CAPITAL RESOURCES

Cash flow:

The following table shows the cash flow for the first three months of 2020 and 2019 (in millions):

	2020		2019		Variance
Net cash provided by operating activities	$	475.1	$	371.3	$	103.8
Net cash used in investing activities	$	(60.6)	$	(172.8)	$	112.2
Net cash used in financing activities	$	(311.4)	$	(309.3)	$	(2.1)

Net cash provided by operating activities:

The change in net cash from operating activities for the first three months of 2020 and 2019 include (in millions):

	2020		2019		Variance		% Change
Net income	$	216.2	$	389.2	$	(173.0)		(44.5)	%
Depreciation, amortization and depletion		192.9		181.6		11.3		6.2	%
Provision for deferred income taxes		7.5		38.9		(31.4)		(80.7)	%
(Gain) loss on foreign currency transaction effect		(28.0)		2.3		(30.3)		(1,317.4)	%
Other adjustments to net income		5.9		2.5		3.4		136.0	%
Operating assets and liabilities		80.6		(243.2)		323.8		(133.1)	%
Net cash provided by operating activities	$	475.1	$	371.3	$	103.8		28.0	%

Significant items added to (deducted from) net income to arrive at operating cash flow include depreciation, amortization and depletion, deferred tax amounts, foreign currency fluctuations and changes in operating assets and liabilities.

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Three months ended March 31, 2020: Net income was $216.2 million, approximately 45.5% of the net operating cash flow. Operating cash flow increased by $80.6 million due to variances in operating assets and liabilities as follows:

● $123.2 million decrease in trade accounts receivable mainly as a result of the decrease in copper prices during the first quarter of 2020.

● $70.4 million of net decrease in inventory, which included $54.6 million of lower leaching inventory mainly at our Peruvian operations, as well as $14.9 million of lower supplies inventory.

● $(102.4) million decrease in accounts payable and accrued liabilities, which included principally income taxes payments at our operations, as well as workers’ participation payments at our Peruvian segment.

● $(10.6) million increase in other operating assets and liabilities.

Three months ended March 31, 2019: Net income was $389.2 million, approximately 104.8% of the net operating cash flow. An increase in operating assets and liabilities decreased operating cash flow by $243.2 million and included:

● $(54.3) million increase in accounts receivable.

● $(7.4) million of net increase in inventory, which included $(28.2) million of higher leaching inventory, and $(0.8) million of higher supplies inventory, partially offset by $15.5 million of lower finished goods and $6.1 million of lower work in process.

● $(132.9) million decrease in accounts payable and accrued liabilities, which included principally $(114.8) million of income taxes and workers’ participation payments at our Peruvian operations.

● $(48.6) million increase in other operating assets and liabilities.

Net cash used for investing activities:

Three months ended March 31, 2020: Net cash used for investing activities included $101.0 million for capital investments. The capital investments included:

● $65.8 million of investments at our Mexican operations:

● $37.4 million for various other replacement and maintenance expenditures, mainly at our Buenavista and La Caridad mines.

● $2.9 million for the new tailing disposal deposit at the Buenavista mine,

● $1.3 million for the Pilares project,

● $6.3 million for the over elevation of tailings deposit N° 7 at the La Caridad Mine,

● $25.3 million at our IMMSA unit, and

● $(7.4) million increase in capital expenditures incurred but not yet paid.

● $35.2 million of investments at our Peruvian operations:

● $8.1 million for the Toquepala concentrator expansion project,

● $3.6 million for the building of the containment dike N°4 at Quebrada Santallana,

● $2.0 million for the pumping system neutralization plant at Toquepala,

● $1.6 million for the new substation at Quebrada Honda,

● $26.2 million for various other replacement and maintenance expenditures, and

● $(6.3) million increase in capital expenditures incurred but not yet paid.

The three months of 2020 investment activities include $40.0 million of net proceeds from short-term investments.

Three months ended March 31, 2019: Net cash used for investing activities included $173.1 million for capital investments. The capital investments included:

● $84.7 million of investments at our Mexican operations:

● $6.1 million for the new tailing disposal deposit at the Buenavista mine,

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● $6.1 million for the over elevation of tailings deposit N° 7 at the La Caridad Mine,

● $1.6 million for the new projects infrastructure,

● $0.5 million for the Sonora River water restitution system located in the Moritas basin,

● $26.8 million at our IMMSA unit,

● $46.2 million for various other replacement and maintenance expenditures, and

● $(2.6) million increase in capital expenditures incurred but not yet paid.

● $88.4 million of investments at our Peruvian operations:

● $7.4 million for the Toquepala concentrator expansion project,

● $2.0 million for the tailings disposal at Quebrada Honda project,

● $3.0 million for the Ilo sulfuric acid plant N°1 modification,

● $13.9 million for the Toquepala equipment acquisition,

● $36.2 million for various other replacement and maintenance expenditures, and

● $25.9 million decrease in capital expenditures incurred but not yet paid.

The first three months of 2019 investment activities also include $0.3 million of net proceeds of short-term investments.

Net cash used in financing activities in the three months ended March 31, 2020 was $311.4 million, and included a dividend distribution of $309.2 million. Net cash used in financing activities was $309.3 million in the three months ended March 31, 2019, and also included a dividend distribution of $309.2 million.

Dividends:

On March 24, 2020, we paid a dividend of $0.40 per share totaling $309.2 million. On April 23, 2020, our Board of Directors authorized a quarterly dividend of $0.20 per share, expected to total $154.6 million, to be paid on May 26, 2020 to SCC shareholders of record at the close of business on May 13, 2020.

Capital Investment and Exploration Programs:

A discussion of our capital investment programs is an important part of understanding our liquidity and capital resources. We expect to meet the cash requirements for these capital investments from cash on hand, internally generated funds and from additional external financing if required. For information regarding our capital investment programs, please see the discussion under the caption “Capital Investment Programs” under this Item 2.

Contractual Obligations:

There have been no material changes in our contractual obligations in the first quarter of 2020. Please see item 7 in Part II of our 2019 annual report on Form 10-K.

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NON-GAAP INFORMATION RECONCILIATION

Operating cash cost: Following is a reconciliation of “Operating Cash Cost” (see page 39) to cost of sales (exclusive of depreciation, amortization and depletion) as reported in our consolidated statement of earnings, in millions of dollars and dollars per pound of copper in the table below:

	Three Months Ended				Three Months Ended
	March 31, 2020				March 31, 2019
			$ per				$ per
	$ millions		pound		$ millions		pound
Cost of sales (exclusive of depreciation, amortization and depletion)	$	955.8	$	1.84	$	844.1	$	1.72
Add:
Selling, general and administrative		29.1		0.06		28.5		0.06
Sales premiums, net of treatment and refining charges		(0.7)		—		11.6		0.02
Less:
Workers’ participation		(53.6)		(0.10)		(48.7)		(0.10)
Cost of metals purchased from third parties		(129.3)		(0.25)		(52.0)		(0.10)
Royalty charge and other, net		(11.3)		(0.02)		(29.9)		(0.06)
Inventory change		(57.1)		(0.11)		(4.2)		(0.01)
Operating Cash Cost before by‑product revenues	$	732.9	$	1.42	$	749.4	$	1.53
Add:
By‑product revenues(1)		(321.4)		(0.62)		(292.0)		(0.59)
Net revenue on sale of metal purchased from third parties		(10.8)		(0.02)		(13.7)		(0.03)
Add:
Total by‑product revenues		(332.2)		(0.64)		(305.7)		(0.62)
Operating Cash Cost net of by‑product revenues	$	400.7	$	0.78	$	443.7	$	0.91

(1) By-product revenues included in our presentation of operating cash cost contain the following:

	Three Months Ended				Three Months Ended
		March 31, 2020				March 31, 2019
			$ per				$ per
	$ millions		pound		$ millions		pound
Molybdenum	$	(126.0)	$	(0.24)	$	(118.3)	$	(0.24)
Silver		(75.8)		(0.15)		(64.2)		(0.13)
Zinc		(51.3)		(0.10)		(46.6)		(0.10)
Sulfuric Acid		(42.4)		(0.08)		(31.0)		(0.06)
Gold and others		(25.9)		(0.05)		(31.9)		(0.06)
Total	$	(321.4)	$	(0.62)	$	(292.0)	$	(0.59)

Item 3. Quantitative and Qualitative Disclosure about Market Risk

Commodity price risk:

For additional information on metal price sensitivity, refer to “Metal Prices” in Part I, Item 2 of this quarterly report on Form 10-Q for the period ended March 31, 2020.

Foreign currency exchange rate risk:

Our functional currency is the U.S. dollar. Portions of our operating costs are denominated in Peruvian soles and Mexican pesos. Since our revenues are primarily denominated in U.S. dollars, when inflation or deflation in our Mexican or Peruvian operations is not offset by a change in the exchange rate of the sol or the peso to the dollar, our financial

51

position, results of operations and cash flows could be affected by local cost conversion when expressed in U.S. dollars. In addition, the dollar value of our net monetary assets denominated in soles or pesos can be affected by exchange rate variances of the sol or the peso, resulting in a re-measurement gain or loss in our financial statements. Recent inflation and exchange rate variances are provided in the table below for the three months ended March 31, 2020 and 2019:

	Three Months Ended
	March 31,
	2020		2019
Peru:
Peruvian inflation rate	0.8	%	0.9	%
Initial exchange rate	3.317		3.379
Closing exchange rate	3.442		3.321
Appreciation/(devaluation)	(3.8)	%	1.7	%
Mexico:
Mexican inflation rate	1.2	%	0.4	%
Initial exchange rate	18.845		19.683
Closing exchange rate	23.512		19.379
Appreciation/(devaluation)	(24.8)	%	1.5	%

Change in monetary position:

Assuming an exchange rate variance of 10% at March 31, 2020 we estimate our net monetary position in Peruvian sol and Mexican peso would increase (decrease) our net earnings as follows:

	Effect in net
	earnings
	($ in millions)
Appreciation of 10% in U.S. dollar vs. Peruvian sol	$	16.5
Devaluation of 10% in U.S. dollar vs. Peruvian sol	$	(20.2)
Appreciation of 10% in U.S. dollar vs. Mexican peso	$	(13.1)
Devaluation of 10% in U.S. dollar vs. Mexican peso	$	16.0

Open sales risk:

Our provisional copper and molybdenum sales contain an embedded derivative that is required to be separate from the host contract for accounting purposes. The host contract is the receivable from the sale of copper and molybdenum concentrates at prevailing market prices at the time of the sale. The embedded derivative, which does not qualify for hedge accounting, is marked to market through earnings each period prior to settlement. See Note 13 to our condensed consolidated financial statements for further information about these provisional sales.

Short-term Investments:

For additional information on our trading securities and available-for-sale investments, refer to “Short-term Investments” in Part I, Item 1 of this quarterly report on Form 10-Q for the period ended March 31, 2020.

Cautionary Statement:

Forward-looking statements in this report and in other Company statements include statements regarding expected commencement dates of mining or metal production operations, projected quantities of future metal production, anticipated production rates, operating efficiencies, costs and expenditures as well as projected demand or supply for the Company’s products. Actual results could differ materially depending upon factors including the risks and uncertainties relating to general U.S. and international economic and political conditions, the cyclical and volatile prices of copper, other commodities and supplies, including fuel and electricity, availability of materials, insurance coverage, equipment, required permits or approvals and financing, the occurrence of unusual weather or operating conditions, lower than expected ore grades, water and geological problems, the failure of equipment or processes to operate in accordance with

52

specifications, failure to obtain financial assurance to meet closure and remediation obligations, labor relations, litigation and environmental risks as well as political and economic risk associated with foreign operations. Results of operations are directly affected by metal prices on commodity exchanges that can be volatile.

Item 4. Controls and Procedures

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

As of March 31, 2020, the Company conducted an evaluation under the supervision and with the participation of the Company’s disclosure committee and the Company’s management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness and the design and operation of the Company’s disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)). Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that the Company’s disclosure controls and procedures are effective as of March 31, 2020, to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is:

1. Recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and

2. Accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

There were no changes in the Company’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) that occurred during the three months ended March 31, 2020 that have materially affected, or are reasonably likely to materially affect, the Company’s internal controls over financial reporting.

53

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Southern Copper Corporation:

Results of Review of Interim Financial Statements

We have reviewed the accompanying condensed consolidated balance sheet of Southern Copper Corporation and subsidiaries (the “Company”) as of March 31, 2020, the related condensed consolidated statements of earnings, comprehensive income and cash flows for the three-month periods ended March 31, 2020, and 2019, and the related notes (collectively referred to as the “interim financial information”). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2019, and the related consolidated statements of earnings, comprehensive income, and cash flows for the year then ended (not presented herein); and in our report dated February 28, 2020, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2019 is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Emphasis of a Matter

We draw attention to Note 1 of the interim financial information, which describes the effects of the new outbreak of coronavirus disease ("COVID-19") as of March 31, 2020 and for the three-month periods then ended.

Basis for Review Results

This interim financial information is the responsibility of the Company’s management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the condensed consolidated interim financial statements taken as a whole. Accordingly, we do not express such an opinion.

Galaz, Yamazaki, Ruiz Urquiza, S.C.

Member of Deloitte Touche Tohmatsu Limited

/s/ Daniel Toledo Antonio

C.P.C. Daniel Toledo Antonio

Mexico City, Mexico

May 4, 2020

54

PART II — OTHER INFORMATION

Item 1. Legal Proceedings:

The information provided in Note 10 “Commitments and Contingencies” to the condensed consolidated financial statements contained in Part I of this Form 10-Q, is incorporated herein by reference.

Item 1A. Risk Factors:

The Company's operations and financial results are subject to various risks and uncertainties, including those described in “Risk Factors” included in Part I, Item 1A of our Annual report on Form 10-K for the year ended December 31, 2019 filed with the SEC on February 28, 2020. The following supplements and updates the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2019.

Our results of operations could in the future be materially adversely impacted by coronavirus pandemic (COVID-19).

The global spread of the coronavirus (COVID-19) has created significant volatility, uncertainty and economic disruption. Since the outbreak of the COVID-19 emerged in early 2020, it has quickly spread across the world. Copper prices, alongside prices of other commodities and assets, have decreased while containment measures taken to control the pandemic are substantially impacting both, the prospects of copper supply and demand. Our financial performance is highly dependent on the price of copper and of other metals we produce. Further decline in metal prices, principally copper, would adversely affect our performance.

As a result of the COVID-19 outbreak and potential future pandemic outbreaks, the Company faces significant risks including, but not limited to:

a) supply chain disruptions making it difficult for the Company to order and receive materials needed for production of its products, and needed to ship finished products to our end customers,

b) financial risks pertaining to receivables due from customers that may fall into insolvency or otherwise be unable to pay their bills,

c) government responses including orders that make it difficult to remain open for business, restrict imports of raw materials or exports of finished goods, refuse to allow the Company’s products to be sold in their countries, and other seen and unforeseen actions taken by government agencies,

d) absenteeism or loss of employees at our Company, or at our affiliated companies, that are needed to develop, validate, manufacture and perform other necessary functions for our operations, due to health reasons or government restrictions,

e) equipment failures due to maintenance postponements, loss of utilities and other disruptions that could impact our operations or render them inoperable,

f) litigation or government actions against the Company,

g) a local or global recession or depression that could harm the international banking system, limit demand for all products including those made by the Company,

h) banking and financial institutions disruption that may limit access to loans, and,

i) many other seen and unforeseen events and circumstances, all of which could negatively impact the Company.

Any of these events could cause or contribute to the risks and uncertainties enumerated in the 2019 Annual Report on Form 10-K and could materially adversely affect our business, financial condition, results of operations and/or stock price.

Item 2. Unregistered Sale of Equity Securities and Use of Proceeds:

SCC share repurchase program:

In 2008, the Company’s BOD authorized a $500 million share repurchase program that has since been increased by the BOD and is currently authorized to $3 billion. Pursuant to this program, the Company has purchased 119.5 million shares of common stock at a cost of $2.9 billion. These shares are available for general corporate purposes. The

55

Company may purchase additional shares of its common stock from time to time, based on market conditions and other factors. This repurchase program has no expiration date and may be modified or discontinued at any time.

The NYSE closing price of SCC common shares at March 31, 2020 was $28.16 and the maximum number of shares that the Company could purchase at that price is 2.9 million shares. As a result of the repurchase of shares of SCC’s common stock, Grupo Mexico’s direct and indirect ownership was 88.9% as of March 31, 2020. There has not been any activity in the SCC share repurchase program since the third quarter of 2016.

Item 4. Mine Safety Disclosures:

Not applicable.

56

Item 6. Exhibits

Exhibit No.	Description of Exhibit
3.1	(a) Amended and Restated Certificate of Incorporation, filed on October 11, 2005. (b) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 2, 2006. (c) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 28, 2008.
3.2	By-Laws, as last amended on January 27, 2011.
4.1	(a) Indenture governing $600 million 7.500% Notes due 2035, by and among Southern Copper Corporation, the Bank of New York and The Bank of New York (Luxembourg) S.A (b) Indenture governing $400 million 7.500% Notes due 2035, by and between Southern Copper Corporation, The Bank of New York, The Bank of New York (Luxembourg) S.A.
4.2	Form of 6.375% Note (included in Exhibit 4.1).
4.3	Form of New 7.500% Note (included in Exhibit 4.2(a)).
4.4	Form of New 7.500% Note (included in Exhibit 4.2(b)).
4.5	Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which $400 million of 5.375% Notes due 2020 and $1.1 billion of 6.750% Notes due 2040 were issued.
4.6	First Supplemental Indenture dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.375% Notes due 2020 were issued.
4.7	Second Supplemental Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 6.750% Notes due 2040 were issued.
4.8	Form of 5.375% Notes due 2020.
4.9	Form of 6.750% Notes due 2040.
4.10	Third Supplemental Indenture dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.500% Notes due 2022 were issued.
4.11	Fourth Supplemental Indenture, dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.250% Notes due 2042 were issued.
4.12	Form of 3.500% Notes due 2022.
4.13	Form of 5.250% Notes due 2042.
4.14	Fifth Supplemental Indenture dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.875% Notes due 2025 were issued.
4.15	Sixth Supplemental Indenture, dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.875% Notes due 2045 were issued.
4.16	Form of 3.875% Notes due 2025.
4.17	Form of 5.875% Notes due 2045.
10.1	Directors’ Stock Award Plan of the Company, as amended through January 28, 2023.

57

Exhibit No.	Description of Exhibit
10.2	Agreement and Plan of Merger, dated as of October 21, 2004, by and among Southern Copper Corporation, SCC Merger Sub, Inc., Americas Sales Company, Inc., Americas Mining Corporation and Minera Mexico S.A. de C.V.
10.3	Tax Agreement entered into by the Company and Americas Mining Corporation, effective as of February 20, 2017.
14.0	Code of Business Conduct and Ethics adopted by the Board of Directors on May 8, 2003 and amended on April 23, 2015
15.0	Consent of Registered Public Accounting Firm (Galaz, Yamazaki, Ruiz Urquiza, S.C. - Member of Deloitte Touche Tohmatsu, Limited).
31.1	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
32.2	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
101.INS	XBRL Instance Document (submitted electronically with this report). The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	XBRL Taxonomy Extension Schema Document (submitted electronically with this report).
101.CAL	XBRL Taxonomy Calculation Linkbase Document (submitted electronically with this report).
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document (submitted electronically with this report).
101.LAB	XBRL Taxonomy Label Linkbase Document (submitted electronically with this report).
101.PRE	XBRL Taxonomy Presentation Linkbase Document (submitted electronically with this report).
104	The cover page from our Quarterly Report on Form 10-Q for the period ended March 31, 2020, filed with the Securities and Exchange Commission on April 30, 2020, is formatted in Inline Extensible Business Reporting Language (“iXBRL”)

Attached as Exhibit 101 to this report are the following documents formatted in Inline XBRL (Inline Extensible Business Reporting Language): (i) the Condensed Consolidated Statement of Earnings for the three months ended March 31, 2020, and 2019; (ii) the Condensed Consolidated Statement of Comprehensive Income for the three months ended March 31, 2020 and 2019; (iii) the Condensed Consolidated Balance Sheet at March 31, 2020 and December 31, 2019; (iv) the Condensed Consolidated Statement of Cash Flows for the three months ended March 31, 2020 and 2019; and (v) the Notes to Condensed Consolidated Financial Statements tagged in detail. Users of this data are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

58

SOUTHERN COPPER CORPORATION

List of Exhibits

Exhibit No.	Description of Exhibit
3.1	(a) Amended and Restated Certificate of Incorporation, filed on October 11, 2005. (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the third quarter of 2005 and incorporated herein by reference). (b) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 2, 2006. (Filed as Exhibit 3.1 to Registration Statement on Form S-4, File No. 333-135170) filed on June 20, 2006 and incorporated herein by reference). (c) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 28, 2008. (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the second quarter of 2008 and incorporated herein by reference).
3.2	By-Laws, as last amended on January 27, 2011. (Filed as Exhibit 3.2 to the Company’s 2010 Annual Report on Form 10-K incorporated herein by reference).
4.1	(a) Indenture governing $600 million 7.500% Notes due 2035, by and among Southern Copper Corporation, the Bank of New York and The Bank of New York (Luxembourg) S.A. (Filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on August 1, 2005) and incorporated herein by reference). (b) Indenture governing $400 million 7.500% Notes due 2035, by and between Southern Copper Corporation, The Bank of New York, The Bank of New York (Luxembourg) S.A.(Filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on August 1, 2005 and incorporated herein by reference).
4.2	Form of 6.375% Note (included in Exhibit 4.1).
4.3	Form of New 7.500% Note (included in Exhibit 4.2(a)).
4.4	Form of New 7.500% Note (included in Exhibit 4.2(b)).
4.5	Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which $400 million of 5.375% Notes due 2020 and $1.1 billion of 6.750% Notes due 2040 were issued (Filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
4.6	First Supplemental Indenture dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.375% Notes due 2020 were issued (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
4.7	Second Supplemental Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 6.750% Notes due 2040 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
4.8	Form of 5.375% Notes due 2020 (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
4.9	Form of 6.750% Notes due 2040 (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
4.10	Third Supplemental Indenture dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.500% Notes due 2022 were issued (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).

59

Exhibit No.	Description of Exhibit
4.11	Fourth Supplemental Indenture, dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.250% Notes due 2042 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
4.12	Form of 3.500% Notes due 2022. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
4.13	Form of 5.250% Notes due 2042. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
4.14	Fifth Supplemental Indenture dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.875% Notes due 2025 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
4.15	Sixth Supplemental Indenture, dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.875% Notes due 2045 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
4.16	Form of 3.875% Notes due 2025. (Filed as Exhibit A to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
4.17	Form of 5.875% Notes due 2045. (Filed as Exhibit A to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
10.1	Directors’ Stock Award Plan of the Company, as amended through January 28, 2023. (Filed as an exhibit to the Company’s 2018 Proxy Statement and incorporated herein by reference). The plan expired by its terms on January 30, 2017. A 5-year extension of the plan was approved by the Company’s stockholders at the 2018 Annual Meeting of Stockholders.
10.2	Agreement and Plan of Merger, dated as of October 21, 2004, by and among Southern Copper Corporation, SCC Merger Sub, Inc., Americas Sales Company, Inc., Americas Mining Corporation and Minera Mexico S.A. de C.V. (Filed as an Exhibit to Current Report on Form 8-K filed on October 22, 2004 and incorporated herein by reference).
10.3	Tax Agreement entered into by the Company and Americas Mining Corporation, effective as of February 20, 2017. (Filed as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the first quarter of 2017 and incorporated herein by reference).
14.0	Code of Business Conduct and Ethics adopted by the Board of Directors on May 8, 2003 and amended on April 23, 2015. (Filed as Exhibit 14 to the Company’s Current Report on Form 8-K filed April 29, 2015 and incorporated herein by reference).
15.0	Consent of Registered Public Accounting Firm (Galaz, Yamazaki, Ruiz Urquiza, S.C. - Member of Deloitte Touche Tohmatsu, Limited) (filed herewith).
31.1	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
31.2	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
32.1	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
32.2	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
101.INS	XBRL Instance Document (submitted electronically with this report). The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

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Exhibit No.	Description of Exhibit
101.SCH	XBRL Taxonomy Extension Schema Document (submitted electronically with this report).
101.CAL	XBRL Taxonomy Calculation Linkbase Document (submitted electronically with this report).
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document (submitted electronically with this report).
101.LAB	XBRL Taxonomy Label Linkbase Document (submitted electronically with this report).
101.PRE	XBRL Taxonomy Presentation Linkbase Document (submitted electronically with this report).
104	The cover page from our Quarterly Report on Form 10-Q for the period ended March 31, 2020, filed with the Securities and Exchange Commission on April 30, 2020, is formatted in Inline Extensible Business Reporting Language (“iXBRL”)

Attached as Exhibit 101 to this report are the following documents formatted in Inline XBRL (Inline Extensible Business Reporting Language): (i) the Condensed Consolidated Statement of Earnings for the three months ended March 31, 2020 and 2019; (ii) the Condensed Consolidated Statement of Comprehensive Income for the three months ended March 31, 2020 and 2019; (iii) the Condensed Consolidated Balance Sheet at March 31, 2020 and December 31, 2019; (iv) the Condensed Consolidated Statement of Cash Flows for the three months ended March 31, 2020 and 2019; and (v) the Notes to Condensed Consolidated Financial Statements tagged in detail. Users of this data are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

61

PART II — OTHER INFORMATION

SIGNATURES

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.

	SOUTHERN COPPER CORPORATION
	(Registrant)
	/s/ Oscar Gonzalez Rocha
	Oscar Gonzalez Rocha
	President and Chief Executive Officer
May 4, 2020
	/s/ Raul Jacob
	Raul Jacob
	Vice President, Finance, Treasurer and Chief Financial Officer
May 4, 2020

62

EX-15

Exhibit 15.0

May 4, 2020

Southern Copper Corporation

1440 East Missouri Avenue, Suite 160

Phoenix, AZ 85014

We are aware that our report dated May 4,  2020, on our review of the interim financial information of Southern Copper Corporation appearing in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2020, is incorporated by reference in Post-Effective Amendment No.3 to Registration Statement No. 333-150982 on Form S-8.

Galaz, Yamazaki, Ruiz Urquiza, S.C.

Member of Deloitte Touche Tohmatsu Limited

/s/ Daniel Toledo Antonio

C.P.C. Daniel Toledo Antonio

Mexico City, Mexico

1

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

Section 302 of the Sarbanes-Oxley Act of 2002

I, Oscar Gonzalez Rocha, certify that:

1.    I have reviewed this report on Form 10-Q of Southern Copper Corporation;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15-d-15(f)) for the registrant and have:

a.     Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.     Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.     Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.     Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.     All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.     Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

May 4, 2020

/s/ Oscar Gonzalez Rocha

Oscar Gonzalez Rocha

President and Chief Executive Officer

1

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

Section 302 of the Sarbanes-Oxley Act of 2002

I, Raul Jacob, certify that:

1.    I have reviewed this report on Form 10-Q of Southern Copper Corporation;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15 (e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.     Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.     Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.     Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.     Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.     All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.     Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

May 4, 2020

/s/ Raul Jacob

Raul Jacob

Vice President, Finance, Treasurer and Chief Financial Officer

1

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Southern Copper Corporation (the “Company”) on Form 10-Q for the period ending March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Oscar Gonzalez Rocha, President and Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Oscar Gonzalez Rocha

Oscar Gonzalez Rocha

President and Chief Executive Officer

May 4, 2020

A signed original of this written statement required by section 906 has been provided to Southern Copper Corporation and will be retained by Southern Copper Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

1

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Southern Copper Corporation (the “Company”) on Form 10-Q for the period ending March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Raul Jacob, Vice President Finance, Treasurer and Chief Financial Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Raul Jacob

Raul Jacob

Vice President, Finance, Treasurer and Chief Financial Officer

May 4, 2020

A signed original of this written statement required by section 906 has been provided to Southern Copper Corporation and will be retained by Southern Copper Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

1

XML

RELATED PARTY TRANSACTIONS: (Tables)

3 Months Ended

Mar. 31, 2020

RELATED PARTY TRANSACTIONS:

Schedule of receivable and payable balances with related parties

Receivable and payable balances with related parties are shown below (in millions):

	At March 31,		At December 31,
	2020		2019
Related parties receivable current:
Grupo Mexico and affiliates:
Asarco LLC	$	15.9	$	10.8
AMMINCO Apoyo Administrativo, S.A. de C.V. (“AMMINCO”)		—		0.1
Compania Perforadora Mexico S.A.P.I. de C.V. and affiliates		0.3		0.3
Grupo Mexico		2.7		2.7
Mexico Generadora de Energia S. de R.L. ("MGE")		15.5		15.3
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates		0.2		0.2
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.1		0.1
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport")		0.5		0.4
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	35.3	$	30.0
Related parties receivable non-current:
Grupo Mexico and affiliates:
Asarco LLC	$	59.0	$	59.5
Related parties payable:
Grupo Mexico and affiliates:
Asarco LLC	$	23.8	$	4.3
AMMINCO		9.1		16.9
Eolica El Retiro, S.A.P.I. de C.V.		0.1		—
Ferrocarril Mexicano, S.A. de C.V.		6.1		6.4
Grupo Mexico		1.3		1.1
MGE		34.7		40.2
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates		6.1		16.0
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.3		0.2
Mexico Transportes Aereos, S.A. de C.V. (“Mextransport”)		—		1.2
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	81.6	$	86.4

Grupo Mexico and affiliates

RELATED PARTY TRANSACTIONS:

Schedule of purchase and sales activities with related parties

The following table summarizes the purchase and sale activities with Grupo Mexico and its affiliates in the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Purchase activity
Asarco LLC	$	62.5	$	10.0
AMMINCO		4.4		2.4
Eolica El Retiro, S.A.P.I. de C.V.		0.1		0.8
Ferrocarril Mexicano, S.A. de C.V.		12.0		10.6
Grupo Mexico		2.5		2.5
MGE		51.6		55.2
Mexico Proyectos y Desarrollos S.A. de C.V. and affiliates		14.3		10.8
Total purchases	$	147.4	$	92.3
Sales activity
Asarco LLC	$	5.9	$	2.0
MGE		9.8		15.1
Total sales	$	15.7	$	17.1

Related to the controlling group

RELATED PARTY TRANSACTIONS:

Schedule of purchase and sales activities with related parties

The following table summarizes the purchase and sales activities with other Larrea family companies in the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Purchase activity
Boutique Bowling de Mexico S.A. de C.V.	$	0.1	$	0.1
Mextransport		1.9		—
Operadora de Cinemas S.A. de C.V.		0.1		(*)
Total purchases	$	2.1	$	0.1
Sales activity
Boutique Bowling de Mexico S.A. de C.V.	$	(*)	$	(*)
Empresarios Industriales de Mexico, S.A. de C.V.		—		0.1
Mextransport		0.4		0.5
Operadora de Cinemas S.A. de C.V.		(*)		(*)
Total sales	$	0.4	$	0.6

(*) amount is lower than $0.1 million

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SUBSEQUENT EVENTS:

3 Months Ended

Mar. 31, 2020

SUBSEQUENT EVENTS:

SUBSEQUENT EVENTS:

NOTE 15 — SUBSEQUENT EVENTS:

Dividends:

On April 23, 2020, the Board of Directors authorized a dividend of $0.20 per share payable on May 26, 2020 to shareholders of record at the close of business on May 13, 2020.

Financing:

On April 16, 2020, the Company made a payment of $410.8 million related to the first tranche of the fixed-rate ten-year senior unsecured notes issued on April 2010. This included the principal payment of $400 million and $10.8 million of accrued interest as of the aforementioned payment date.

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RELATED PARTY TRANSACTIONS: (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2012 item MW	Dec. 31, 2019 USD ($)	Aug. 04, 2014 item
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	$ 35.3			$ 30.0
Related parties receivable non-current:	59.0			59.5
Related parties payable:	81.6			86.4
Total purchases	2.1	$ 0.1
Total sales	0.4	0.6
Grupo Mexico and affiliates
RELATED PARTY TRANSACTIONS:
Total purchases	147.4	92.3
Total sales	15.7	17.1
Asarco LLC
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	15.9			10.8
Related parties receivable non-current:	59.0			59.5
Related parties payable:	23.8			4.3
Total purchases	62.5	10.0
Total sales	5.9	2.0
Accounts Receivable	62.0
Making quarterly payments	0.5
Interest earned	0.6
Asarco LLC | Other Noncurrent Assets [Member]
RELATED PARTY TRANSACTIONS:
Due from related parties, non-current	$ 59.0
Asarco LLC | London Interbank Offered Rate (LIBOR) [Member]
RELATED PARTY TRANSACTIONS:
Debt Instrument, Basis Spread on Variable Rate	2.00%
AMMINCO
RELATED PARTY TRANSACTIONS:
Related parties receivable current:				0.1
Related parties payable:	$ 9.1			16.9
Total purchases	4.4	2.4
Compania Perforadora Mexico, S.A.P.I. de C.V. and affiliates
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	0.3			0.3
Eolica El Retiro, S.A.P.I. de C.V.
RELATED PARTY TRANSACTIONS:
Related parties payable:	0.1
Total purchases	$ 0.1	$ 0.8
Number of wind turbines | item					37
Percentage of supply to third-party energy users	3.00%	20.90%
Ferrocarril Mexicano, S.A. de C.V.
RELATED PARTY TRANSACTIONS:
Related parties payable:	$ 6.1			6.4
Total purchases	12.0	$ 10.6
Grupo Mexico
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	2.7			2.7
Related parties payable:	1.3			1.1
Total purchases	2.5	2.5
Donations	0.0	3.4
Mexico Generadora de Energia, S. de R.L. ("MGE")
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	15.5			15.3
Related parties payable:	34.7			40.2
Total purchases	51.6	55.2
Total sales	9.8	$ 15.1
Mexico Generadora de Energia, S. de R.L. ("MGE") | Mexico
RELATED PARTY TRANSACTIONS:
Number of natural gas-fired combined cycle power generating units | item			2
Net total capacity (in megawatts) | MW			516.2
Percentage of supply to third-party energy users		2.10%	1.00%
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates ("MPD")
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	0.2			0.2
Related parties payable:	6.1			16.0
Mexico Proyectos y Desarrollos SA de CV and affiliates
RELATED PARTY TRANSACTIONS:
Total purchases	$ 14.3	$ 10.8
Apu Coropuna S.R.L.
RELATED PARTY TRANSACTIONS:
Ownership percentage	30.00%
Boutique Bowling de Mexico, S.A. de C.V.
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	$ 0.1			0.1
Related parties payable:	0.3			0.2
Total purchases	0.1	0.1
Empresarios Industriales de Mexico, S.A. de C.V
RELATED PARTY TRANSACTIONS:
Total sales		0.1
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport")
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	0.5			0.4
Related parties payable:				1.2
Total purchases	1.9
Total sales	0.4	$ 0.5
Operadora de Cinemas S.A. de C.V.
RELATED PARTY TRANSACTIONS:
Related parties receivable current:	0.1			0.1
Related parties payable:	0.1			$ 0.1
Total purchases	$ 0.1
Equity investment in affiliate
RELATED PARTY TRANSACTIONS:
Ownership percentage	44.20%

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COMMITMENTS AND CONTINGENCIES: - Environmental matters (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2011 category person
Environmental costs
Environmental capital investment	$ 12.4	$ 19.2
Peru
Environmental costs
Environmental capital investment	2.5	10.2
Mexico
Environmental costs
Environmental capital investment	$ 9.9	$ 9.0
Number of categories of collective actions | category			3
Minimum number of people claiming injury due to collective action initiative in Civil Federal Procedures Code (CFPC) | person			30

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SEGMENT AND RELATED INFORMATION: (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2019 USD ($)
Financial information related to segments
Number of reportable segments | segment	3
Financial information relating to segments
Net sales	$ 1,719.7	$ 1,753.4	$ 1,753.4
Cost of sales (exclusive of depreciation, amortization and depletion)	955.8	844.1
Selling, general and administrative	29.1	28.5
Depreciation, amortization and depletion	192.9	181.6
Exploration	8.6	5.5
Operating income	533.3	693.7
Interest, net	(89.0)	(74.1)
Other income (expense)	(7.4)	5.4
Income taxes	(221.7)	(237.9)
Equity earnings of affiliate	1.0	2.1
Non-controlling interest	(1.4)	(1.0)
Net income attributable to SCC	214.8	388.2
Capital investment	101.0	173.1
Property and mine development, net	9,288.7	9,383.6		$ 9,371.0
Total assets	16,212.1	15,542.6		$ 16,407.4
Intersegment sales
Financial information relating to segments
Net sales	(26.8)	(19.9)
Corporate, other and eliminations
Financial information relating to segments
Net sales	(26.8)		(19.9)
Cost of sales (exclusive of depreciation, amortization and depletion)	(32.5)	(23.5)
Selling, general and administrative	0.9	0.8
Depreciation, amortization and depletion	9.6	8.8
Exploration	3.4	0.2
Operating income	(8.2)	(6.2)
Capital investment	2.3	1.1
Property and mine development, net	529.8	343.7
Total assets	3,651.5	1,588.8
Reportable subsegments
Financial information relating to segments
Net sales	1,719.7	1,753.4
Mexican Open-pit | Operating segment
Financial information relating to segments
Net sales	953.7		1,072.1
Cost of sales (exclusive of depreciation, amortization and depletion)	465.1	419.6
Selling, general and administrative	16.7	16.3
Depreciation, amortization and depletion	91.4	85.0
Exploration	0.7	0.4
Operating income	379.8	550.8
Capital investment	38.2	58.6
Property and mine development, net	4,420.7	4,780.6
Total assets	7,057.2	8,375.0
Mexican Open-pit | Reportable subsegments | Operating segment
Financial information relating to segments
Net sales	953.7	1,072.1
Mexican IMMSA Unit | Operating segment
Financial information relating to segments
Net sales	134.5		121.1
Cost of sales (exclusive of depreciation, amortization and depletion)	112.2	100.0
Selling, general and administrative	2.4	1.8
Depreciation, amortization and depletion	10.6	12.9
Exploration	2.9	2.0
Operating income	6.4	4.4
Capital investment	25.3	25.0
Property and mine development, net	505.7	460.9
Total assets	815.9	942.2
Mexican IMMSA Unit | Intersegment sales
Financial information relating to segments
Net sales	26.8	19.9
Mexican IMMSA Unit | Reportable subsegments | Operating segment
Financial information relating to segments
Net sales	107.7	101.2
Peruvian Operations | Operating segment
Financial information relating to segments
Net sales	658.3		$ 580.1
Cost of sales (exclusive of depreciation, amortization and depletion)	411.0	348.0
Selling, general and administrative	9.1	9.6
Depreciation, amortization and depletion	81.3	74.9
Exploration	1.6	2.9
Operating income	155.3	144.7
Capital investment	35.2	88.4
Property and mine development, net	3,832.5	3,798.4
Total assets	4,687.5	4,636.6
Peruvian Operations | Reportable subsegments | Operating segment
Financial information relating to segments
Net sales	$ 658.3	$ 580.1

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REVENUE: - Revenue by Geographical Areas (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2018
Revenue Recognition
Net sales	$ 1,719.7	$ 1,753.4	$ 1,753.4
Corporate, other and eliminations
Revenue Recognition
Net sales	(26.8)		(19.9)
Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	953.7		1,072.1
Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	134.5		121.1
Peruvian Operations | Operating segment
Revenue Recognition
Net sales	658.3		580.1
Mexico
Revenue Recognition
Net sales	436.0		418.2
Mexico | Corporate, other and eliminations
Revenue Recognition
Net sales	(26.8)		(19.9)
Mexico | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	363.6		351.3
Mexico | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	99.2		86.8
United States
Revenue Recognition
Net sales	299.3		287.1
United States | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	258.2		279.0
United States | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	0.2		1.4
United States | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	40.9		6.7
Peru
Revenue Recognition
Net sales	76.1		87.3
Peru | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales			1.6
Peru | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	3.0
Peru | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	73.1		85.7
Brazil
Revenue Recognition
Net sales	58.0		55.5
Brazil | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	3.5		7.2
Brazil | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	54.5		48.3
Chile
Revenue Recognition
Net sales	50.1		21.1
Chile | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	1.9		1.1
Chile | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	48.2		20.0
Other American countries
Revenue Recognition
Net sales	9.4		15.1
Other American countries | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	8.3		12.8
Other American countries | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	0.9		0.5
Other American countries | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	0.2		1.8
Switzerland
Revenue Recognition
Net sales	253.9		347.8
Switzerland | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	172.5		225.4
Switzerland | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	14.9		12.0
Switzerland | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	66.5		110.4
Italy
Revenue Recognition
Net sales	70.2		82.0
Italy | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales			29.2
Italy | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	3.4		5.5
Italy | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	66.8		47.3
Spain
Revenue Recognition
Net sales	46.6		45.5
Spain | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	46.6		45.5
Other European Countries
Revenue Recognition
Net sales	79.3		82.6
Other European Countries | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	20.3		22.9
Other European Countries | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	6.1		5.8
Other European Countries | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	52.9		53.9
Singapore
Revenue Recognition
Net sales	200.7		112.9
Singapore | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	61.7		58.5
Singapore | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	3.2		1.8
Singapore | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	135.8		52.6
Japan
Revenue Recognition
Net sales	108.1		127.3
Japan | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	9.4		9.8
Japan | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	98.7		117.5
Other Asian countries
Revenue Recognition
Net sales	32.0		71.0
Other Asian countries | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	11.2		35.0
Other Asian countries | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	0.1		0.1
Other Asian countries | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	$ 20.7		$ 35.9

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STOCKHOLDERS' EQUITY: - Directors' Stock Award Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share based compensation
Stock based compensation expense		$ 0.1
Directors' Stock Award Plan
Share based Compensation Plan
Common shares received on election as director	1,200
Additional shares issued at each annual general meeting	1,200
Total SCC shares reserved for the plan	600,000
Period of extension of plan	5 years
Increased share awards issued to directors	1,600

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DESCRIPTION OF THE BUSINESS:

3 Months Ended

Mar. 31, 2020

DESCRIPTION OF THE BUSINESS:

DESCRIPTION OF THE BUSINESS:

NOTE 1— DESCRIPTION OF THE BUSINESS:

The Company is a majority-owned, indirect subsidiary of Grupo Mexico S.A.B. de C.V. (“Grupo Mexico”). At March 31, 2020, Grupo Mexico through its wholly-owned subsidiary Americas Mining Corporation (“AMC”) owned 88.9% of the Company’s capital stock. The condensed consolidated financial statements presented herein consist of the accounts of Southern Copper Corporation (“Southern Copper”, "SCC" or the “Company”), a Delaware corporation, and its subsidiaries. The Company is an integrated producer of copper and other minerals, and operates mining, smelting and refining facilities in Peru and Mexico. The Company conducts its primary operations in Peru through a registered branch (the "Peruvian Branch" or “Branch” or “SPCC Peru Branch”). The Peruvian Branch is not a corporation separate from the Company. The Company's Mexican operations are conducted through subsidiaries. The Company also conducts exploration activities in Argentina, Chile, Ecuador, Mexico and Peru.

In the opinion of the Company, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary to state fairly the Company’s financial position as of March 31, 2020 and the results of operations, comprehensive income, cash flows and changes in equity for the three months ended March 31, 2020 and 2019. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results to be expected for the full year. The December 31, 2019 balance sheet data was derived from audited financial statements, but does not include all disclosures required by generally accepted accounting principles in the United States of America (“GAAP”). The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements at December 31, 2019 and notes included in the Company’s 2019 annual report on Form 10-K.

COVID – 19 PANDEMIC

Since the World Health Organization (“WHO”) declared the COVID-19 virus outbreak as a global pandemic, all the countries where the Company operates and conducts exploration activities, as well as the countries where its main customers and suppliers are located have published health and safety rules and restrictions on individuals and business activities.

As of March 31, 2020, the Company‘s production facilities in Mexico and Peru were working at approximately 90% of their production capacity. The Company has developed a rigorous COVID-19 emergency protocol and approximately 40% of the workforce in Mexico, or 6,333 employees, were working on site under strict safety measures. The remaining workforce of 8,751 employees were working from home, including all individuals at high risk due to age and/or prior medical conditions. For the Peruvian operations, approximately 39% of the workforce, or 3,499 employees were working on site under strict safety measures, while the remaining 5,468 employees were working from home, due to the same reasons explained above. These employees numbers include the Company´s personnel and contractors.

The Company’s exploration activities in Argentina, Ecuador and Chile were also reduced and their drilling teams are on stand-by.

The financial reporting process and the information required to prepare the Company’s financial statements suffered no interruption and the financial statements were prepared without restrictions or difficulties.

The Company has activated its Corporate Crisis Committee as well as its Crisis Committees in Mexico and Peru to closely monitor the impact of the pandemic as well as to analyze and solve any issues that may arise without delay. As of March 31, 2020, there were no major delays in the supply of materials and services critical for the operations and sales. Also, shipments and collections have had no known major delays.

After completing the first stage of its capital programs at Buenavista in Mexico and Toquepala in Peru, the Company currently does not have major capital expenditures commitments (see Note 10 - Commitments and Contingencies). The Company paid the first tranche of its 2010 bonds of $400 million on April 15, 2020. The Company has no other major debt maturity until 2022.

At March 31, 2020 the Company has performed a qualitative analysis and has not identified any indicator of impairment. As the Company reported on its 2019 Annual report on Form 10-K, the results of its impairment sensitivity analysis showed projected discounted cash flows in excess of the carrying amounts of long lived assets by margins ranging from 1.2 to 4.8 times such carrying amount. This analysis included a stress test using a copper price assumption of $2.00 per pound and a molybdenum price assumption of $4.00 per pound. (Please see, Management´s Discussion and Analysis, Critical Policies and Estimates, Asset Impairments on the 2019 Form 10-K).

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	1-14066
Entity Registrant Name	SOUTHERN COPPER CORP/
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-3849074
Entity Address, Address Line One	1440 East Missouri Avenue Suite 160
Entity Address, City or Town	Phoenix
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85014
City Area Code	602
Local Phone Number	264-1375
Title of 12(b) Security	Common stock
Trading Symbol	SCCO
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		773,058,869
Entity Central Index Key	0001001838
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Millions, $ in Millions	Mar. 31, 2020	Dec. 31, 2019
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable other, related parties	$ 35.3	$ 30.0
Accounts payable, related parties	$ 81.6	$ 86.4
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized	2,000.0	2,000.0
Common stock, shares issued	884.6	884.6

XML

STOCKHOLDERS' EQUITY:

3 Months Ended

Mar. 31, 2020

STOCKHOLDERS' EQUITY:

STOCKHOLDERS' EQUITY:

NOTE 11 — STOCKHOLDERS’EQUITY:

Treasury Stock:

Activity in treasury stock in the three-month period ended March 31, 2020 and 2019 is as follows (in millions):

	2020		2019
Southern Copper common shares
Balance as of January 1,	$	2,767.9	$	2,768.3
Used for corporate purposes		—		—
Balance as of March 31,		2,767.9		2,768.3
Parent Company (Grupo Mexico) common shares
Balance as of January 1,		281.0		251.3
Other activity, including dividend, interest and foreign currency transaction effect		(14.7)		6.4
Balance as of March 31,		266.3		257.7
Treasury stock balance as of March 31,	$	3,034.2	$	3,026.0

Southern Copper Common Shares:

At March 31, 2020 and at December 31, 2019, there were in treasury 111,537,217 shares of SCC’s common stock.

SCC share repurchase program:

In 2008, the Company’s Board of Directors (“BOD”) authorized a $500 million share repurchase program that has since been increased by the BOD and is currently authorized to $3 billion. Pursuant to this program, the Company has purchased 119.5 million shares of common stock at a cost of $2.9 billion. These shares are available for general corporate purposes. The Company may purchase additional shares of its common stock from time to time, based on market conditions and other factors. This repurchase program has no expiration date and may be modified or discontinued at any time.

The NYSE closing price of SCC common shares at March 31, 2020 was $28.16 and the maximum number of shares that the Company could purchase at that price is 2.9 million shares.

As a result of the repurchase of shares of SCC’s common stock, Grupo Mexico’s direct and indirect ownership was 88.9% as of March 31, 2020. There has not been any activity in the SCC share repurchase program since the third quarter of 2016.

Directors’ Stock Award Plan:

The Company established a stock award compensation plan for certain directors who are not compensated as employees of the Company. Under this plan, participants received 1,200 shares of common stock upon election and 1,200 additional shares following each annual meeting of stockholders thereafter. 600,000 shares of Southern Copper common stock have been reserved for this plan. On April 26, 2018, the Company's stockholders approved a five-year extension of the Plan until January 29, 2023 and an increase of the shares award from 1,200 to 1,600. The fair value of the award is measured each year at the date of the grant.

Parent Company common shares:

At March 31, 2020 and at December 31, 2019 there were in treasury 93,067,011 and 93,082,532 of Grupo Mexico’s common shares, respectively.

Employee Stock Purchase Plan:

2015 Plan: In January 2015, the Company offered to eligible employees a new stock purchase plan through a trust that acquires series B shares of Grupo Mexico stock for sale to its employees, and employees of subsidiaries, and certain affiliated companies. The purchase price was established at 38.44 Mexican pesos (approximately $2.63) for the initial subscription, which expires in January 2023. Every two years employees will be able to acquire title to 50% of the shares paid in the previous two years. The employees will pay for shares purchased through monthly payroll deductions over the eight year period of the plan. At the end of the eight year period, the Company will grant the participant a bonus of 1 share for every 10 shares purchased by the employee. Any future subscription will be at the average market price at the date of acquisition or the grant date.

If Grupo Mexico pays dividends on shares during the eight year period, the participants will be entitled to receive the dividend in cash for all shares that have been fully purchased and paid as of the date that the dividend is paid. If the participant has only partially paid for shares, the entitled dividends will be used to reduce the remaining liability owed for purchased shares.

In the case of voluntary or involuntary resignation/termination of the employee, the Company will pay to the employee the fair market sales price at the date of resignation of the fully paid shares, net of costs and taxes. When the fair market sales value of the shares is higher than the purchase price, the Company will apply a deduction over the amount to be paid to the employee based on a decreasing schedule specified in the plan.

In case of retirement or death of the employee, the Company will render the buyer or his legal beneficiary, the fair market sales value as of the date of retirement or death of the shares effectively paid, net of costs and taxes.

The stock based compensation expense for the first quarter 2020 and 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

	2020		2019
Stock based compensation expense	$	0.2	$	0.2
Unrecognized compensation expense	$	1.8	$	2.4

The following table presents the activity of this plan for the three months ended March 31, 2020 and 2019:

		Unit Weighted Average
	Shares	Grant Date Fair Value
Outstanding shares at January 1, 2020	1,379,734	$	2.63
Granted	—		—
Exercised	(54,221)	$	2.63
Forfeited	—		—
Outstanding shares at March 31, 2020	1,325,513	$	2.63
Outstanding shares at January 1, 2019	1,840,336	$	2.63
Granted	—		—
Exercised	(247,670)	$	2.63
Forfeited	—		—
Outstanding shares at March 31, 2019	1,592,666	$	2.63

2018 Plan: In November 2018, the Company offered to eligible employees a new stock purchase plan (the “New Employee Stock Purchase Plan”) through a trust that acquires series B shares of Grupo Mexico stock for sale to its employees, and employees of subsidiaries, and certain affiliated companies. The purchase price was established at 37.89 Mexican pesos (approximately $1.86) for the initial subscription, which expires in October 2026. Every two years employees will be able to acquire title to 50% of the shares paid in the previous two years. The employees will pay for shares purchased through monthly payroll deductions over the eight year period of the plan. At the end of the eight year period, the Company will grant the participant a bonus of 1 share for every 10 shares purchased by the employee. Any future subscription will be at the average market price at the date of acquisition or the grant date.

If Grupo Mexico pays dividends on shares during the eight year period, the participants will be entitled to receive the dividend in cash for all shares that have been fully purchased and paid as of the date that the dividend is paid. If the participant has only partially paid for shares, the entitled dividends will be used to reduce the remaining liability owed for purchased shares.

In the case of voluntary or involuntary resignation/termination of the employee, the Company will pay to the employee the fair market sales price at the date of resignation of the fully paid shares, net of costs and taxes. When the fair market sales value of the shares is higher than the purchase price, the Company will apply a deduction over the amount to be paid to the employee based on a decreasing schedule specified in the plan.

In case of retirement or death of the employee, the Company will render the buyer or his legal beneficiary, the fair market sales value as of the date of retirement or death of the shares effectively paid, net of costs and taxes.

The stock based compensation expense for the three months ended March 31, 2020 and 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

	2020		2019
Stock based compensation expense	$	0.2	$	0.1
Unrecognized compensation expense	$	4.3	$	3.5

The following table presents the stock award activity of this plan for the three months ended March 31, 2020 and 2019:

			Unit Weighted Average
	Shares		Grant Date Fair Value
Outstanding shares at January 1, 2020	4,002,898	$	1.86
Granted	—	$	—
Exercised	—		—
Forfeited	—		—
Outstanding shares at March 31, 2020	4,002,898	$	1.86
Outstanding shares at January 1, 2019	2,782,424	$	1.86
Granted	—		—
Exercised	—		—
Forfeited	—		—
Outstanding shares at March 31, 2019	2,782,424	$	1.86

Non-controlling interest:

The following table presents the non-controlling interest activity for the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Balance as of January 1,	$	47.9	$	45.4
Net earnings		1.4		1.0
Dividend paid		(2.3)		(0.1)
Balance as of March 31,	$	47.0	$	46.3

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LEASES:

3 Months Ended

Mar. 31, 2020

LEASES:

LEASES:

NOTE 7 — LEASES:

The Company has operating leases for power generating facilities, vehicles and properties. Leases with an initial term of 12 months or less, underlying asset value of $10,000 or less and total nominal contract value of $100,000 or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. Some of the Company’s leases include both lease and non-lease components which are accounted for separately. The Company’s leases have remaining lease terms of two years to 13 years, and do not include options to extend the leases. The Company’s lease agreements do not contain options to purchase the leased assets or to terminate the leases before the expiration date. In addition, the Company’s lease contracts do not have any material residual value guarantees or material restrictive covenants. As none of the Company’s leases provides an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

The weighted average remaining lease term for the Company’s leases is 10 years, and the weighted average discount rate for these leases is 3.60%.

The operating lease expense recognized in the three months ended March 31, 2020 and 2019 was classified as follows (in millions):

Classification	2020		2019
Cost of sales (exclusive of depreciation, amortization and depletion)	$	28.9	$	28.8
Selling, general and administrative		0.1		0.1
Exploration		(*)		(*)
Total lease expense	$	29.0	$	28.9

(*) amount is lower than $0.1 million

The Company’s short-term lease costs for the three months ended March 31, 2020 was less than $0.1 million.

Maturities of lease liabilities were as follows:

	Lease liabilities
Year	(in millions)
2020	$	87.0
2021		116.0
2022		112.9
2023		111.6
2024		103.6
After 2024		826.3
Total lease payments	$	1,357.4
Less: interest on lease liabilities		(327.9)
Present value of lease payments	$	1,029.5

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SHORT-TERM INVESTMENTS:

3 Months Ended

Mar. 31, 2020

SHORT-TERM INVESTMENTS:

SHORT-TERM INVESTMENTS:

NOTE 3 — SHORT-TERM INVESTMENTS:

Short-term investments were as follows ($ in millions):

	At March 31,			At December 31,
	2020			2019
Trading securities	$	40.1		$	80.0
Weighted average interest rate		1.9	%		2.0	%
Available-for-sale	$	0.6		$	0.7
Weighted average interest rate		0.7	%		0.7	%
Total	$	40.7		$	80.7

Trading securities consist of bonds issued by public companies and are publicly traded. Each financial instrument is independent of the others. The Company has the intention to sell these bonds in the short-term.

Available-for-sale investments consist of securities issued by public companies. Each security is independent of the others and at March 31, 2020 and December 31, 2019, included corporate bonds and asset and mortgage backed obligations. As of March 31, 2020 and December 31, 2019, gross unrealized gains and losses on available-for-sale securities were not material.

Related to these investments the Company earned interest, which was recorded as interest income in the condensed consolidated statement of earnings. Also, the Company redeemed some of these securities and recognized gains (losses) due to changes in fair value, which were recorded as other income (expense) in the condensed consolidated statement of earnings.

The following table summarizes the activity of these investments by category (in millions):

	Three months ended
	March 31,
	2020		2019
Trading:
Interest earned	$	0.7	$	0.1
Unrealized gain (loss) at the end of the period	$	(*)	$	(0.1)
Available-for-sale:
Interest earned		(*)		(*)
Investment redeemed	$	0.1	$	—

(*) Less than $0.1 million.

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STOCKHOLDERS' EQUITY (Tables)

3 Months Ended

Mar. 31, 2020

Share based Compensation Plan

Schedule of activity in treasury stock

Activity in treasury stock in the three-month period ended March 31, 2020 and 2019 is as follows (in millions):

	2020		2019
Southern Copper common shares
Balance as of January 1,	$	2,767.9	$	2,768.3
Used for corporate purposes		—		—
Balance as of March 31,		2,767.9		2,768.3
Parent Company (Grupo Mexico) common shares
Balance as of January 1,		281.0		251.3
Other activity, including dividend, interest and foreign currency transaction effect		(14.7)		6.4
Balance as of March 31,		266.3		257.7
Treasury stock balance as of March 31,	$	3,034.2	$	3,026.0

Summary of non-controlling interest activity

The following table presents the non-controlling interest activity for the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Balance as of January 1,	$	47.9	$	45.4
Net earnings		1.4		1.0
Dividend paid		(2.3)		(0.1)
Balance as of March 31,	$	47.0	$	46.3

Employee Stock Purchase 2015 Plan

Share based Compensation Plan

Schedule of stock based compensation expense and unrecognized compensation expense

The stock based compensation expense for the first quarter 2020 and 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

	2020		2019
Stock based compensation expense	$	0.2	$	0.2
Unrecognized compensation expense	$	1.8	$	2.4

Schedule of stock award activity

		Unit Weighted Average
	Shares	Grant Date Fair Value
Outstanding shares at January 1, 2020	1,379,734	$	2.63
Granted	—		—
Exercised	(54,221)	$	2.63
Forfeited	—		—
Outstanding shares at March 31, 2020	1,325,513	$	2.63
Outstanding shares at January 1, 2019	1,840,336	$	2.63
Granted	—		—
Exercised	(247,670)	$	2.63
Forfeited	—		—
Outstanding shares at March 31, 2019	1,592,666	$	2.63

Employee Stock Purchase 2018 Plan

Share based Compensation Plan

Schedule of stock based compensation expense and unrecognized compensation expense

The stock based compensation expense for the three months ended March 31, 2020 and 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

	2020		2019
Stock based compensation expense	$	0.2	$	0.1
Unrecognized compensation expense	$	4.3	$	3.5

Schedule of stock award activity

XML

DESCRIPTION OF THE BUSINESS: (Details) $ in Millions			3 Months Ended
	Apr. 16, 2020 USD ($)	Apr. 15, 2020 USD ($)	Mar. 31, 2020 employee $ / lb $ / item
Percentage of ownership interest held by the parent company			88.90%
Percentage of operating over production capacity during COVID-19 time			90.00%
Copper price assumption | $ / lb			2.00
Molybdenum price assumption | $ / item			4.00
Minimum
Projected discounted cash flows in excess of the carrying amounts of long lived assets by margins			1.2
Maximum
Projected discounted cash flows in excess of the carrying amounts of long lived assets by margins			4.8
Peru
Number of employees working on site under strict safety measures			3,499
Percentage workforce working on site under strict safety measures			39.00%
Number of employees working from home			5,468
Mexico
Number of employees working on site under strict safety measures			6,333
Percentage workforce working on site under strict safety measures			40.00%
Number of employees working from home			8,751
Subsequent Events | Fixed-rate senior unsecured notes issued April 2010
Repayment of debt | $	$ 410.8	$ 400.0

XML

FAIR VALUE MEASUREMENT: (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Liabilities:
Long-term debt, Carrying Value	$ 6,941.8	$ 6,940.8
Long-term debt, Fair Value	7,461.4	8,451.4
Short-term investment:
Trading securities	40.1	80.0
Available-for-sale debt securities:
Available-for-sale Securities, Current, Total	0.6	0.7
Quoted prices in active markets for identical assets (Level 1)
Liabilities:
Long-term debt, Carrying Value	6,191.4	6,190.6
Long-term debt, Fair Value	6,712.2	7,675.3
Significant other observable inputs (Level 2)
Liabilities:
Long-term debt, Carrying Value	750.4	750.2
Long-term debt, Fair Value	749.2	776.1
Fair value measurements recurring | Fair value as of the end of the period
Short-term investment:
Trading securities	40.1	80.0
Derivative:
Total assets, fair value	353.0	534.0
Fair value measurements recurring | Fair value as of the end of the period | Copper
Derivative:
Provisionally priced sales	187.2	326.5
Fair value measurements recurring | Fair value as of the end of the period | Molybdenum
Derivative:
Provisionally priced sales	125.1	126.8
Fair value measurements recurring | Asset backed securities | Fair value as of the end of the period
Available-for-sale debt securities:
Available-for-sale debt securities	0.3	0.4
Fair value measurements recurring | Mortgage backed securities | Fair value as of the end of the period
Available-for-sale debt securities:
Available-for-sale debt securities	0.3	0.3
Fair value measurements recurring | Quoted prices in active markets for identical assets (Level 1)
Short-term investment:
Trading securities	40.1	80.0
Derivative:
Total assets, fair value	352.4	533.3
Fair value measurements recurring | Quoted prices in active markets for identical assets (Level 1) | Copper
Derivative:
Provisionally priced sales	187.2	326.5
Fair value measurements recurring | Quoted prices in active markets for identical assets (Level 1) | Molybdenum
Derivative:
Provisionally priced sales	125.1	126.8
Fair value measurements recurring | Significant other observable inputs (Level 2)
Available-for-sale debt securities:
Available-for-sale Securities, Current, Total	0.6	0.7
Fair value measurements recurring | Significant other observable inputs (Level 2) | Asset backed securities
Available-for-sale debt securities:
Available-for-sale debt securities	0.3	0.4
Fair value measurements recurring | Significant other observable inputs (Level 2) | Mortgage backed securities
Available-for-sale debt securities:
Available-for-sale debt securities	$ 0.3	$ 0.3

XML

STOCKHOLDERS' EQUITY: - Repurchase Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	147 Months Ended
	Mar. 31, 2020	Dec. 31, 2008
SCC share repurchase program:
Amount authorized for share repurchase program	$ 3,000	$ 500
Number of Shares Purchased	119.5
Maximum Number of Shares that May Yet Be Purchased Under the Plan @ $39.68	2.9
Cost of purchase of shares	$ 2,900
Closing price of NYSE (in dollars per share)	$ 28.16
Percentage of ownership by parent	88.90%

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,051.6	$ 1,925.1
Short-term investments	40.7	80.7
Accounts receivable trade	709.7	832.9
Accounts receivable other (including related parties 2020- $35.3 and 2019 - $30)	80.0	78.9
Inventories	1,079.4	1,068.5
Prepaid taxes	157.9	172.4
Other current assets	20.4	26.2
Total current assets	4,139.7	4,184.7
Property and mine development, net	9,288.7	9,371.0
Ore stockpiles on leach pads	1,149.0	1,230.3
Intangible assets, net	148.5	148.4
Related parties receivable	59.0	59.5
Right-of-use assets	1,029.6	1,046.4
Deferred income tax	195.8	183.9
Equity method investment	112.9	111.9
Other non-current assets	88.9	71.3
Total assets	16,212.1	16,407.4
Current liabilities:
Current portion of long-term debt	400.0	399.8
Accounts payable (including related parties 2020- $81.6 and 2019- $86.4)	597.8	598.3
Accrued income taxes	16.5	116.3
Accrued workers' participation	130.3	174.9
Accrued interest	140.9	96.0
Lease liabilities current	69.4	68.6
Other accrued liabilities	32.3	22.6
Total current liabilities	1,387.2	1,476.5
Long-term debt	6,541.8	6,541.0
Lease liabilities	960.1	977.8
Deferred income taxes	183.2	178.3
Non-current taxes payable		0.7
Other liabilities and reserves	111.1	112.6
Asset retirement obligation	265.5	262.3
Total non-current liabilities	8,061.7	8,072.7
Commitments and contingencies (Note 10)
STOCKHOLDERS' EQUITY (NOTE 11)
Common stock par value $0.01; shares authorized, 2020 and 2019-2,000; shares issued, 2020 and 2019-884.6	8.8	8.8
Additional paid-in capital	3,410.5	3,424.9
Retained earnings	6,341.2	6,435.6
Accumulated other comprehensive income	(10.1)	(10.1)
Treasury stock, at cost, common shares	(3,034.2)	(3,048.9)
Total Southern Copper Corporation stockholders' equity	6,716.2	6,810.3
Non-controlling interest	47.0	47.9
Total equity	6,763.2	6,858.2
Total liabilities and equity	$ 16,212.1	$ 16,407.4

XML

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
Dividends paid as cash dividend (in dollars per share)	$ 0.4	$ 0.4

XML

RELATED PARTY TRANSACTIONS:

3 Months Ended

Mar. 31, 2020

RELATED PARTY TRANSACTIONS:

RELATED PARTY TRANSACTIONS:

NOTE 6 — RELATED PARTY TRANSACTIONS:

The Company has entered into certain transactions in the ordinary course of business with parties that are controlling shareholders or their affiliates. These transactions include the lease of office space, air and railroad transportation, construction services, energy supply, and other products and services related to mining and refining. The Company lends and borrows funds among affiliates for acquisitions and other corporate purposes. These financial transactions bear interest and are subject to review and approval by senior management, as are all related party transactions. It is the Company’s policy that the Audit Committee of the Board of Directors shall review all related party transactions. The Company is prohibited from entering or continuing a material related party transaction that has not been reviewed and approved or ratified by the Audit Committee.

Receivable and payable balances with related parties are shown below (in millions):

	At March 31,		At December 31,
	2020		2019
Related parties receivable current:
Grupo Mexico and affiliates:
Asarco LLC	$	15.9	$	10.8
AMMINCO Apoyo Administrativo, S.A. de C.V. (“AMMINCO”)		—		0.1
Compania Perforadora Mexico S.A.P.I. de C.V. and affiliates		0.3		0.3
Grupo Mexico		2.7		2.7
Mexico Generadora de Energia S. de R.L. ("MGE")		15.5		15.3
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates		0.2		0.2
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.1		0.1
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport")		0.5		0.4
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	35.3	$	30.0
Related parties receivable non-current:
Grupo Mexico and affiliates:
Asarco LLC	$	59.0	$	59.5
Related parties payable:
Grupo Mexico and affiliates:
Asarco LLC	$	23.8	$	4.3
AMMINCO		9.1		16.9
Eolica El Retiro, S.A.P.I. de C.V.		0.1		—
Ferrocarril Mexicano, S.A. de C.V.		6.1		6.4
Grupo Mexico		1.3		1.1
MGE		34.7		40.2
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates		6.1		16.0
Related to the controlling group:
Boutique Bowling de Mexico, S.A. de C.V.		0.3		0.2
Mexico Transportes Aereos, S.A. de C.V. (“Mextransport”)		—		1.2
Operadora de Cinemas, S.A. de C.V.		0.1		0.1
	$	81.6	$	86.4

Purchase and sale activity:

Grupo Mexico and affiliates:

The following table summarizes the purchase and sale activities with Grupo Mexico and its affiliates in the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Purchase activity
Asarco LLC	$	62.5	$	10.0
AMMINCO		4.4		2.4
Eolica El Retiro, S.A.P.I. de C.V.		0.1		0.8
Ferrocarril Mexicano, S.A. de C.V.		12.0		10.6
Grupo Mexico		2.5		2.5
MGE		51.6		55.2
Mexico Proyectos y Desarrollos S.A. de C.V. and affiliates		14.3		10.8
Total purchases	$	147.4	$	92.3
Sales activity
Asarco LLC	$	5.9	$	2.0
MGE		9.8		15.1
Total sales	$	15.7	$	17.1

Grupo Mexico, the parent and the majority indirect stockholder of the Company, and its affiliates provide various services to the Company. These services are primarily related to accounting, legal, tax, financial, treasury, human resources, price risk assessment and hedging, purchasing, procurement and logistics, sales and administrative and other support services. In 2018, AMMINCO, a subsidiary of Grupo Mexico, began providing these services for the Company's Peruvian operations. The Company pays Grupo Mexico and AMMINCO for these services and expects to continue requiring these services in the future.

In the first quarter of 2020, the Company did not make donations to Fundacion Grupo Mexico, A.C., an organization dedicated to promoting the social and economic development of the communities close to the Company’s Mexican operations. In the first quarter of 2019, the Company made donations of $3.4 million to this this organization.

The Company’s Mexican operations paid fees for freight services provided by Ferrocarril Mexicano, S.A de C.V. and for construction services provided by Mexico Proyectos y Desarrollos, S.A. de C.V. and its affiliates, which are all subsidiaries of Grupo Mexico.

The Company’s Mexican operations purchased scrap, concentrate and other copper mineral from Asarco LLC, and power from MGE. Both companies are subsidiaries of Grupo Mexico.

In 2012, the Company signed a power purchase agreement with MGE, whereby MGE will supply some of the Company’s Mexican operations with power through 2032. MGE has two natural gas-fired combined cycle power generating units, with a net total capacity of 516.2 megawatts and has been supplying power to the Company since December 2013. Currently, MGE is supplying approximately 1% of its power output to third-party energy users; compared to 2.1% at March 31, 2019.

In 2014, Mexico Generadora de Energia Eolica, S. de R.L. de C.V, an indirect subsidiary of Grupo Mexico, located in Oaxaca, Mexico, acquired Eolica el Retiro. Eolica el Retiro is a windfarm with 37 wind turbines. This company started operations in January 2014 and started to sell power to Industrial Minera Mexico, S.A. de C.V. and subsidiaries (IMMSA) and other subsidiaries of Grupo Mexico in the third quarter of 2014. Currently, Eolica el Retiro is supplying approximately 3% of its power output to IMMSA and Mexcobre, compared to 20.9% at March 31, 2019.

The Company sold copper rod as well as sulfuric acid, silver and gold to Asarco LLC.

In September 2019, Asarco LLC signed a promissory note to pay to the Company´s Mexican operations $62.0 million plus interest no later than October 31, 2021, with quarterly payments of $0.5 million. The annual interest rate of the note is Libor plus 200 basis points, which will be reviewed annually. As of March 31, 2020, $59.0 million is recorded in a separate line as a long-term related party receivable in the condensed consolidated balance sheet. Related to this promissory note, the Company recorded interest income of $0.6 million in the first quarter of 2020.

In addition, the Company received fees for natural gas and services provided to MGE; a subsidiary of Grupo Mexico.

Companies with relationships to the controlling group:

The following table summarizes the purchase and sales activities with other Larrea family companies in the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Purchase activity
Boutique Bowling de Mexico S.A. de C.V.	$	0.1	$	0.1
Mextransport		1.9		—
Operadora de Cinemas S.A. de C.V.		0.1		(*)
Total purchases	$	2.1	$	0.1
Sales activity
Boutique Bowling de Mexico S.A. de C.V.	$	(*)	$	(*)
Empresarios Industriales de Mexico, S.A. de C.V.		—		0.1
Mextransport		0.4		0.5
Operadora de Cinemas S.A. de C.V.		(*)		(*)
Total sales	$	0.4	$	0.6

(*) amount is lower than $0.1 million

The Larrea family controls a majority of the capital stock of Grupo Mexico, and has extensive interests in other businesses, including transportation, real estate and entertainment. The Company engages in certain transactions in the ordinary course of business with other entities controlled by the Larrea family relating to the lease of office space, air transportation and entertainment.

The Company’s Mexican operations paid fees for entertainment services provided by Boutique Bowling de Mexico, S.A de C.V. and Operadora de Cinemas, S.A. de C.V. Both companies are controlled by the Larrea family.

Mextransport provides aviation services to the Company´s Mexican operations. This is a company controlled by the Larrea family.

In addition, the Company received fees for building rental and maintenance provided to Boutique Bowling de Mexico, S.A. de C.V., Operadora de Cinemas, S.A. de C.V and Mextransport. The Company´s Mexican operations also received fees for security services provided to Empresarios Industriales de Mexico, S.A. de C.V. This is also a company controlled by the Larrea family.

Equity Investment in Affiliate: The Company has a 44.2% participation in Compania Minera Coimolache S.A. (“Coimolache”), which it accounts for on the equity method. Coimolache owns Tantahuatay, a gold mine located in the northern part of Peru.

In addition, the Company has a 30.0% participation in Apu Coropuna S.R.L. (“Apu Coropuna”), which it accounts for on the equity method. Apu Coropuna is a company which undertakes exploration activities in the Pucay prospect, located in Arequipa, Peru.

It is anticipated that in the future the Company will enter into similar transactions with these same parties.

In the first quarter of 2020, the Company did not have purchase or sales activities with companies having relationships with SCC executive officers.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

3 Months Ended

Mar. 31, 2020

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13: “Financial Instruments – Credit Losses (Topic 326)”. This amendment includes disclosure requirements that are both quantitative and qualitative in nature. This amendment affects loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The main purpose of these disclosures is to (1) enable financial statement users to understand the credit risk inherent in a reporting entity’s portfolio, (2) understand how management monitors credit risk,

(3) provide insight as to how management develops estimates of expected credit losses, and (4) disclose the changes in these estimates during the reporting period. This ASU was adopted on January 1, 2020.

Prior to adopting this ASU, the Company applied an impairment methodology for accounts receivable arising from revenue transactions within the scope of ASC 606 that is consistent with the provision matrix model contemplated in the new standard. In addition, the new disclosure requirements do not apply to such trade receivables because the collection periods in all cases are less than one year. The Company’s accounts receivable from related parties under common control are excluded from the scope of this ASU. Accordingly, the adoption of this ASU did not have a material impact on the Company’s financial statements or related disclosures.

Long-term inventory-Ore stockpiles on leach pads:

On January 1, 2020, the Company aligned its capitalization method for its Peruvian and Mexican operations to capitalize based on the allocation of copper content recoverable between ore and leach material. In addition, the inventory consumption is now valued at the average unit cost, instead of the declining percentages of recovery method used previously. As a result of these changes, the value of capitalized material decreased by $48.8 million and the consumption increased by $10.3 million.

Management has evaluated ASC 250-10 and considered appropriate guidance to conclude that the above mentioned classified as a change in accounting estimate and therefore should affect accounting books prospectively. Management believes that this new method will result in a more appropriate value of this material.

XML

COMMITMENTS AND CONTINGENCIES:

3 Months Ended

Mar. 31, 2020

COMMITMENTS AND CONTINGENCIES:

COMMITMENTS AND CONTINGENCIES:

NOTE 10 — COMMITMENTS AND CONTINGENCIES:

Environmental matters:

The Company has instituted extensive environmental conservation programs at its mining facilities in Peru and Mexico. The Company’s environmental programs include, among others, water recovery systems to conserve water and minimize the impact on nearby streams, reforestation programs to stabilize the surface of the tailings dams and the implementation of scrubbing technology in the mines to reduce dust emissions.

Environmental capital investments in the three months ended March 31, 2020 and 2019 were as follows (in millions):

	2020		2019
Peruvian operations	$	2.5	$	10.2
Mexican operations		9.9		9.0
	$	12.4	$	19.2

Peruvian operations: The Company’s operations are subject to applicable Peruvian environmental laws and regulations. The Peruvian government, through the Ministry of Environment (“MINAM”) conducts annual audits of the Company’s Peruvian mining and metallurgical operations. Through these environmental audits, matters related to environmental obligation, compliance with legal requirements, atmospheric emissions, effluent monitoring and waste management are reviewed. Peruvian law requires that companies in the mining industry provide assurances for future mine closure and remediation. In accordance with the requirements of this law, the Company’s closure plans were approved by MINEM. See Note 8 “Asset retirement obligation,” for further discussion of this matter.

Air Quality Standards (“AQS”): In June 2017, MINAM enacted a supreme decree which defined new AQS for daily sulfur dioxide in the air. As of March 31, 2020, the Company maintains a lower daily average level of µg/m3 (micrograms per cubic meter) of SO2, than those required by the AQS.

Soil Environmental Quality Standards (“SQS”): In 2013, the Peruvian government enacted SQS applicable to any existing facility or project that generates or could generate the risk of soil contamination in its area of operation or influence. In March 2014, MINAM issued a supreme decree, which established additional provisions for the gradual implementation of SQS.

In accordance with the regulatory requirements, the Company has been working on a characterization phase and a Soil Decontamination Plan (“SDP”) for environmentally impacted sites in each of its operating units (Toquepala, Cuajone, and Ilo) with the assistance of consulting companies. The Toquepala and Cuajone SDP have been presented to the authorities for review and approval in the third quarter of 2019, and the Ilo SDP was submitted in January 2020.

While the Company believes that there is a reasonable possibility that a potential loss contingency may exist, it cannot currently reasonably estimate the amount of the contingency. The Company believes that a reasonable determination of the loss will be possible once the characterization study and the SDP are substantially completed and approved, which is expected during 2020. At that time, the Company will be in a position to estimate the remediation cost. Furthermore, the Company does not believe that it can estimate a reasonable range of possible costs until the noted studies have substantially progressed and therefore is not able to disclose a range of costs that is meaningful.

Climate change: On April 17, 2018, the Peruvian government enacted Law N. 30754, establishing a Climate Change

Framework. Through this law, promoting public and private investment in climate change management is declared to be of national interest. The law proposes to create an institutional framework to address climate change in Peru, outlining new measures, particularly with respect to climate change mitigation. It includes, for example, provisions dealing with: increasing carbon capture and use of carbon sinks; afforestation and reforestation practices; land use changes; and sustainable systems of transportation, solid waste management, and energy systems. It was the first Latin American climate change framework law to incorporate responsibilities from the Paris Agreement. Regulations to this law were enacted by Supreme Decree 013-2019 published on December 31, 2019 and are applicable to all Peruvian institutions and agencies. It is expected that further Peruvian regulations would be applicable to non-governmental entities. The Company anticipates initiating a multi-year process to adopt applicable reporting recommendations of the Task-Force on Climate Related Financial Disclosures (TCFD) once new Peruvian climate change regulations applicable to non-governmental entities are implemented. The Company is committed to the environment and to manage climate-related impacts. The Company’s focus is to seek continuous improvement in the responsible use of natural resources while complying with strict applicable legal standards for prevention, mitigation, control and remediation of environmental impacts. Implementing continuous improvement in the Company’s processes allows greater efficiency in the use and consumption of energy, water, and other natural resources.

Mexican operations: The Company’s operations are subject to applicable Mexican federal, state and municipal environmental laws, to Mexican official standards, and to regulations for the protection of the environment, including regulations relating to water supply, water quality, air quality, noise levels and hazardous and solid waste.

The principal legislation applicable to the Company’s Mexican operations is the Federal General Law of Ecological Balance and Environmental Protection (the “General Law”), which is enforced by the Federal Bureau of Environmental Protection (“PROFEPA”). PROFEPA monitors compliance with environmental legislation and enforces Mexican environmental laws, regulations and official standards. It may also initiate administrative proceedings against companies that violate environmental laws, which in the most extreme cases may result in the temporary or permanent shutdown of non-complying facilities, the revocation of operating licenses and/or other sanctions or fines.

In 2011, the General Law was amended, giving an individual or entity the ability to contest administrative acts, including environmental authorizations, permits or concessions granted, without the need to demonstrate the actual existence of harm to the environment as long as it can be argued that the harm may be caused. In addition, in 2011, amendments to the Civil Federal Procedures Code (“CFPC”) were enacted, which establish three categories of collective actions by means of which 30 or more people claiming injury derived from environmental, consumer protection,

financial services and economic competition issues will be considered to be sufficient in order to have a legitimate interest to seek through a civil procedure restitution or economic compensation or suspension of the activities from which the alleged injury derived. The amendments to the CFPC may result in more litigation, with plaintiffs seeking remedies, including suspension of the activities alleged to cause harm.

In 2013, the Environmental Liability Federal Law was enacted. The law establishes general guidelines for actions to be considered to likely cause environmental harm. If a possible determination regarding harm occurs, environmental clean-up and remedial actions sufficient to restore environment to a pre-existing condition should be taken. Under this law, if restoration is not possible, compensation measures should be provided. Criminal penalties and monetary fines can be imposed under this law.

On February 2019, the Mexican Supreme Court confirmed the constitutionality of an ecological tax on extractive activities developed in the state of Zacatecas, which taxes the environmental remediation actions, emissions of certain gases to the atmosphere, emissions of pollutant substances to the soil or water, and waste storage within the state territory. The Company has determined that this new environmental regulation will have no impact on its financial position.

Guaymas sulfuric acid spill:

On July 9, 2019, there was an incident at the Company´s Marine Terminal in Guaymas, Sonora, that caused the discharge of approximately three cubic meters of sulfuric acid into the sea in the industrial port area.

The Guaymas bay has an estimated water volume of 340 million cubic meters, the spill upon entering in contact with the sea’s alkaline conditions, the discharge was quickly diluted, the sulfuric acid was naturally and immediately neutralized. As a result the discharge was considered harmless, and it was found that neither the flora nor fauna of the port area were affected, according to the report from the Ministry of Navy.

On July 10, 2019, PROFEPA made a first inspection of the area, concluding that the Company executed all the correct procedures in order to contain the discharge, and no reference was made to the existence of negative impacts on the environment resulting from the incident.

On Friday, July 19, 2019, PROFEPA revisited the facilities to carry out a second inspection, declaring a partial temporary shutdown related only to the storage process and transportation of sulfuric acid at the terminal, arguing the absence of an authorization of environmental impact. It is important to note that these facilities have been in operation since 1979, previous to the 1988 Mexican General Law of Ecological Balance and the Protection of the Environment. Therefore, these licenses are not a requirement for companies that have been operating before the aforementioned law. In addition, in 2009, PROFEPA awarded a certification of “Clean Industry and Environmental Quality” for such facility; which was subsequently renewed four times (for a two-year period each time).

The Company does not know the reasons or causes for this partial and temporary closure, but it will continue contributing with the environmental authorities in order to provide certainty that the operation is in strict compliance with the environmental regulations. The Company expects the environmental authorities to suspend the partial temporary shutdown, once they resolve their concerns. Currently, the Company does not expect any impact on its operations. As of March 31, 2020, the matter is pending resolution.

Climate change:

Grupo Mexico, the indirect parent of SCC, has for more than 10 years issued sustainability reports under the Global Reporting Initiative (GRI). Grupo Mexico also participates in different Mexican and international reporting programs such as the Greenhouse Gases (GHG) Mexico Program and the Carbon Disclosure Program (CDP). Since 2013, GHG and CDP have signed a memorandum of understanding to work on aligning their reporting frameworks. Grupo Mexico’s 2018 CDP questionnaire included responses to the Task Force on Climate-Related Disclosure or TCFD concerns. In compliance with the 2012 Mexican Climate Change Law Grupo Mexico’s GHG emissions are reported and verified independently. Grupo Mexico’s Sustainability Reports disclosing inventories of GHG emissions can be located at

http://www.gmexico.com/site/en/sustainable/sustainability_reports.html. On October 18, 2017, Grupo Mexico was selected to join the S&P Sustainability Indices MILA Pacific Alliance (DJSI MILA). This regional sustainability index included for 2017, 42 leading companies in sustainability from the countries that form part of the Pacific Alliance: Mexico, Chile, Colombia and Peru.

The Company believes that all of its facilities in Peru and Mexico are in material compliance with applicable environmental, mining and other applicable laws and regulations. The Company also believes that continued compliance with environmental laws of Mexico and Peru will not have a material adverse effect on the Company’s business, properties, or result of operations.

Litigation matters:

Peruvian operations

The Tia Maria Mining Project

There are four lawsuits filed against the Peruvian Branch of the Company related to the Tia Maria project. The lawsuits seek (i) to declare null and void the resolution which approved the Environmental Impact Assessment of the project; (ii) the cancellation of the project and the withdrawal of mining activities in the area and (iii) to declare null and void the mining concession application of the Tia Maria project. The lawsuits were filed by Messrs. Jorge Isaac del Carpio Lazo (filed May 22, 2015), Ernesto Mendoza Padilla (filed May 26, 2015), Juan Alberto Guillen Lopez (filed June 18, 2015) and Junta de Usuarios del Valle del Tambo (filed April 30, 2015).

The del Carpio Lazio case was rejected by the court of first instance on November 14, 2016. The plaintiff filed an appeal before the Superior Court on January 3, 2017. On January 9, 2018, the lawyers of both parties presented their respective positions before the Appellate Court. On March 8, 2018, the Appellate Court issued its final decision, which upheld the first instance ruling. On April 27, 2018, the plaintiff filed an extraordinary appeal before the Supreme Court. As of March 31, 2020, the case remains pending resolution.

The Mendoza Padilla case was initially rejected by the lower court on July 8, 2015. This ruling was confirmed by the Superior Court on June 14, 2016. On July 12, 2016, the case was appealed before the Constitutional Court. On November 20, 2018, the Constitutional Court reversed the previous decisions and remanded the case to the lower court for further action. As of March 31, 2020, the case remains pending resolution.

The Guillen Lopez case is currently before the lower court. On July 19, 2019, the oral arguments took place. On January 7, 2020, the Judge decided to suspend the proceeding until the del Carpio Lazio case is concluded. Therefore, as of March 31, 2020, the case remains pending resolution.

The Junta de Usuarios del Valle del Tambo case is currently before the lower court. On May 2016, the Company was included in the process, after the Ministry of Energy and Mines filed a civil complaint. On March 6, 2019, the Company was formally notified of the lawsuit and answered the complaint on March 20, 2019. As of March 31, 2020, the case remains pending resolution.

The Company asserts that these lawsuits are without merit and is vigorously defending against them. The potential contingency amount for these cases cannot be reasonably estimated by management at this time.

Special Regional Pasto Grande Project (“Pasto Grande Project”)

In 2012, the Pasto Grande Project, an entity of the Regional Government of Moquegua, filed a lawsuit against SCC’s Peruvian Branch alleging property rights over a certain area used by the Peruvian Branch and seeking the demolition of the tailings dam where SCC’s Peruvian Branch has deposited its tailings from the Toquepala and Cuajone operations since 1995. The Peruvian Branch has had title to use the area in question since 1960 and has constructed and operated the tailings dams with proper governmental authorization, since 1995. Upon a motion filed by the Peruvian Branch, the lower court has included MINEM as a defendant in this lawsuit. MINEM has answered the complaint and denied the

validity of the claim. As of March 31, 2020, the case remains pending resolution without further developments. SCC’s Peruvian Branch asserts that the lawsuit is without merit and is vigorously defending against it. The amount of this contingency cannot be reasonably estimated by management at this time.

Mexican operations

The Accidental Spill at Buenavista Mine of 2014

In relation to the 2014 accidental spill of copper sulfate solution that occurred at a leaching pond of the Buenavista mine, the following legal procedures are pending against the Company:

On August 19, 2014, PROFEPA, as part of the administrative proceeding initiated after the spill, announced the filing of a criminal complaint against Buenavista del Cobre S.A. de C.V. (“BVC”), a subsidiary of the Company, in order to determine those responsible for the environmental damages. During the second quarter of 2018, the criminal complaint was dismissed. This decision was appealed and remains pending resolution as of March 31, 2020.

Through the first half of 2015, six collective action lawsuits were filed in federal courts in Mexico City and Sonora against two subsidiaries of the Company seeking economic compensation, clean up and remedial activities in order to restore the environment to its pre-existing conditions. Two of the collective action lawsuits have been dismissed by the court. As of March 31, 2020, four lawsuits continue in process: three were filed by Acciones Colectivas de Sinaloa, A.C. and one was filed by Defensa Colectiva, A.C., requesting precautionary measures about construction of facilities for monitoring public health services and prohibiting the closure of the Rio Sonora Trust.

Similarly, during 2015, eight civil action lawsuits were filed against BVC in the state courts of Sonora seeking damages for alleged injuries and for moral damages as a consequence of the spill. The plaintiffs in the state court lawsuits are: Jose Vicente Arriola Nunez et al; Santana Ruiz Molina et al; Andres Nogales Romero et al; Teodoro Javier Robles et al; Gildardo Vasquez Carvajal et al; Rafael Noriega Souffle et al; Grupo Banamichi Unido de Sonora El Dorado, S.C. de R.L. de C.V; and Marcelino Mercado Cruz. In 2016, three additional civil action lawsuits, claiming similar damages, were filed by Juan Melquicedec Lebaron; Blanca Lidia Valenzuela Rivera et al and Ramona Franco Quijada et al. In 2017, BVC was served with thirty-three additional civil action lawsuits, claiming similar damages. The lawsuits were filed by Francisco Javier Molina Peralta et al; Anacleto Cohen Machini et al; Francisco Rafael Alvarez Ruiz et al; Jose Alberto Martinez Bracamonte et al; Gloria del Carmen Ramirez Duarte et al; Flor Margarita Sabori et al; Blanca Esthela Ruiz Toledo et al; Julio Alfonso Corral Domínguez et al; Maria Eduwiges Bracamonte Villa et al; Francisca Marquez Dominguez et al; Jose Juan Romo Bravo et al; Jose Alfredo Garcia Leyva et al; Gloria Irma Dominguez Perez et al; Maria del Refugio Romero et al; Miguel Rivas Medina et al; Yolanda Valenzuela Garrobo et al; Maria Elena Garcia Leyva et al; Manuel Alfonso Ortiz Valenzuela et al; Francisco Alberto Arvayo Romero et al; Maria del Carmen Villanueva Lopez et al; Manuel Martin Garcia Salazar; Miguel Garcia Arguelles et al; Dora Elena Rodriguez Ochoa et al; Honora Eduwiges Ortiz Rodriguez et al; Francisco Jose Martinez Lopez et al; Maria Eduwiges Lopez Bustamante; Rodolfo Barron Villa et al, Jose Carlos Martinez Fernandez et al, Maria de los Angeles Fabela et al; Rafaela Edith Haro et al; Luz Mercedes Cruz et al; Juan Pedro Montaño et al; and Juana Irma Alday Villa. During the first quarter of 2018, BVC was served with another civil action lawsuit, claiming similar damages. The lawsuit was filed by Alma Angelina Del Cid Rivera et al. During the last quarter of 2018, BVC was served with other three civil action lawsuits, claiming similar damages, such lawsuits were filed by Los Corrales de la Estancia, S.C. de R.L.; Jose Antonio Navarro; Jesus Maria Peña Molina, et al; these actions were dismissed by the court, because they have expired. As of March 31, 2020, forty-five cases remain pending resolution.

During 2015, four constitutional lawsuits (juicios de amparo) were filed before Federal Courts against various authorities and against a subsidiary of the Company, arguing; (i) the alleged lack of a waste management program approved by SEMARNAT; (ii) the alleged lack of a remediation plan approved by SEMARNAT with regard to the August 2014 spill; (iii) the alleged lack of community approval regarding the environmental impact authorizations granted by SEMARNAT to one subsidiary of the Company; and (iv) the alleged inactivity of the authorities with regard of the spill in August 2014. The plaintiffs of these lawsuits are: Francisca Garcia Enriquez, et al which established two lawsuits, Francisco Ramon Miranda, et al and Jesus David Lopez Peralta et al. During the third quarter of 2016, four additional constitutional lawsuits, claiming similar damages were filed by Mario Alberto Salcido et al; Maria Elena Heredia

Bustamante et al; Martin Eligio Ortiz Gamez et al; and Maria de los Angeles Enriquez Bacame et al. During the third quarter of 2017, BVC was served with another constitutional lawsuit filed by Francisca García Enriquez et al. In 2018, BVC was served with two additional constitutional lawsuits that were filed against SEMARNAT by Norberto Bustamante et al. Regarding the constitutional lawsuit filed by Maria Elena Heredia Bustamante et al; in which it was claimed the lack of community approval regarding the authorization granted by SEMARNAT to build the new BVC tailings dam, on September 5, 2018, the Supreme Court of Justice issued a resolution which established that such authorization was granted to BVC in compliance with the applicable legislation. However, SEMARNAT must carry out a public meeting to inform the community of the technical aspects required to build the dam, potential impacts and prevention measures, with no material effects to BVC’s operations. SEMARNAT has carried out the consultation ordered by the Supreme Court. As a result, has informed the corresponding Judge about its compliance with the resolution, in which BVC was imposed additional measures of environmental impact prevention, such as: (i) the building of at least three monitoring wells downstream from the curtain of the contingency dam in a period six months period; (ii) monitoring of the groundwater level and water quality every six months; (iii) carrying out rain collection work in order to restore water to the Sonora River basin, for which six months are granted to present the execution program; (iv) determine the location of wildlife conservation and protection areas and define the need to establish biological corridors; (v) obtain photographic or videographic evidence every six months; (vi) submitting to SEMARNAT two years before the closure and abandonment of the site, or earlier if necessary, the closure program that includes the cleaning and restoration of the soil including Mexican regulation NOM-141; (vii) include the measures in the Environmental Monitoring Program according to the environmental components impacted; and (viii) hiring an external environmental consultant to validate compliance with the current and new conditions that are imposed. The foregoing does not impact BVC’s operations. Likewise, it is noted that the lawsuits promoted by Maria de los Angeles Enriquez Bacame and Norberto Bustamante have been dismissed and closed without prejudice to the Company. As of March 31, 2020, the remaining cases are still pending resolution.

It is not currently possible to determine the extent of the damages sought in these state and federal lawsuits but the Company considers that these lawsuits are without merit. Accordingly, the Company is vigorously defending against them. Nevertheless, the Company considers that none of the legal proceedings resulting from the spill, individually or in the aggregate, would have a material effect on its financial position or results of operations.

Corporate operations

Carla Lacey, on behalf of herself and all other similarly situated stockholders of Southern Copper Corporation, and derivatively on behalf of Southern Copper Corporation

In April 2019, a derivative lawsuit was filed against the Company, certain of its current and former Directors, and Grupo Mexico in the Delaware Court of Chancery relating to certain construction contracts, contracts for the purchase and sale of minerals, and transportation contracts entered into between the Company’s subsidiaries and subsidiaries of Grupo Mexico.

In October 2019, the plaintiff amended the complaint to include claims related to certain administrative services contracts between the Company’s subsidiaries and Grupo Mexico. The amended complaint alleges, among other things, that the construction contracts, the mineral contracts, the transportation contracts, and the administrative services contracts were unfair as a result of breaches of fiduciary duties and the Company’s charter. The amended complaint seeks, among other things, unspecified monetary damages. In January 2020, the Company, the current and former Directors, and Grupo Mexico responded to the complaint by filing motions to dismiss. Plaintiff filed a brief in response to the motions on March 13, 2020. Because the Company has not formed a conclusion as to whether an unfavorable outcome is either probable or remote, the Company expresses no opinion as to the likelihood of an unfavorable outcome or the amount or range of any possible loss to the Company.

Labor matters:

Peruvian operations: 64.8% of the Company’s 4,886 Peruvian employees were unionized at March 31, 2020. Currently, there are six separate unions, one large union and five small unions. In June 2018, the Company signed a three-year collective bargaining agreement with one of the smaller unions. This agreement includes, among other things, annual

salary increases of 5% for each year starting September 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense. In August 2018, the Company signed a three-year collective bargaining agreement with three additional unions. This agreement includes, among other things, annual salary increases of 5% for each year starting December 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense. In March 2019, the Company signed an agreement with one additional union. The agreement also included annual salary increases of 5% for each year starting September 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense in the first quarter of 2019.

In November 2019, the Company signed two agreements with the remaining union, one of them for one year and the other one consisting of a three-year collective bargaining agreement. The agreements also included annual salary increases of 5% for each year starting September 2018, and a signing bonus of S/15,000 (approximately $4,500) for the one-year agreement and S/45,000 for the three-year agreement (approximately $13,600) which were recorded as labor expense in the fourth quarter of 2019.

Mexican operations: In recent years, the Mexican operations have experienced a positive improvement of their labor environment, as its workers opted to change their affiliation from the Sindicato Nacional de Trabajadores Mineros, Metalurgicos y Similares de la Republica Mexicana (the “National Mining Union”) to other less politicized unions.

The workers of the San Martin mine were on strike since July 2007. On February 28, 2018, the striking workers of the San Martín mine of IMMSA held an election to vote on the union that will hold the collective bargaining agreement at the San Martín mine. The Federacion Nacional de Sindicatos Independientes (the National Federation of Independent Unions), won the vote by a majority. Nevertheless, the vote was challenged by the National Mining Union. On June 26, 2018, the Federal Mediation and Arbitration Board issued a ruling recognizing the election results. Due to the agreement between workers and the Company to end the protracted strike, on August 22, 2018, the Federal Mediation and Arbitration Board authorized the restart of operations of the San Martín mine. Such authorization was challenged by the National Mining Union. On April 4, 2019, the Federal Mediation and Arbitration Board recognized again the election results from February 28, 2018; in which the National Federation of Independent Unions won by a majority. During the last quarter of 2019, a Federal Court issued a resolution that established that the Labor Court should analyze the list of workers with the right to vote in the union election. The Company and the National Federation of Independent Unions challenged such determination before the Supreme Court of Justice and it is still pending resolution. The Company is working on a rehabilitation plan to restore operations at the San Martin mine with a budget of $97.7 million. At March 31, 2020, the plan is in progress with a total expense of $78.6 million.

In the case of the Taxco mine, its workers have been on strike since July 2007. After several legal procedures, in August 2015, the Supreme Court decided to assert jurisdiction over the case and to rule on it directly. As of March 31, 2020, the case remains pending resolution without further developments.

It is expected that operations at the Taxco mine will remain suspended until the labor issues are resolved. In view of the lengthy strike, the Company has reviewed the carrying value of the Taxco mine to ascertain whether impairment exists. The Company concluded that there is a non-material impairment of the assets located at this mine.

Other legal matters:

The Company is involved in various other legal proceedings incidental to its operations, but the Company does not believe that decisions adverse to it in any such proceedings, individually or in the aggregate, would have a material effect on its financial position or results of operations.

Other commitments:

Peruvian Operations

Tia Maria:

On August 1, 2014, the Company received the final approval of Tia Maria´s Environmental Impact Assessment (“EIA”). On July 8, 2019, the Company received the construction permit for this 120,000 ton annual SX-EW copper greenfield project with a total capital budget of $1,400 million. This permit was obtained after completing an exhaustive review process, complying with all established regulatory requirements and addressing all observations raised.

On July 15, 2019, anti-mining groups staged a violent demonstration affecting economic as well as other activities in the Islay province. These actions were followed by the filing of three complaints, sponsored by groups opposing the Tia Maria project, with the Mining Council, which is the Peruvian administrative authority responsible to resolve these complaints. The Mining Council temporarily suspended the construction permit on August 8, 2019. On October 7, 2019, as part of the process, the Mining Council conducted a hearing to hear the complaints and the Company´s position. On October 30, 2019, the Mining Council of the Peruvian Ministry of Energy and Mines ratified the construction permit for the Tia Maria project.

The Company´s commitment is to guarantee the population of Islay that the Tia Maria project will not adversely affect other local economic activities. The project will use only desalinated seawater for its operations and, for the transportation of its supplies and copper production, the Company will build an 32 kilometer industrial railway and an access road at a safe distance from the Tambo Valley.

The Company´s social programs in education, healthcare and productive development will continue to improve the quality of life and the agricultural and livestock activities in the Tambo Valley, as well as develop fishing and tourism in Islay. During the construction and operation phase, hiring local labor will be a priority. The Company has launched in June 2019 the free technical training program “Forging the Future”, which will benefit 700 persons in this province during 2019-20. After training, the participants will be eligible to apply for one of the estimated 9,000 jobs (3,600 direct and 5,400 indirect) required during the Tia Maria construction phase.

When in operation, the Company expects Tia Maria will generate a significant contribution through mining royalties and taxes from day one and will directly employ 600 workers and indirectly provide jobs to another 4,200.

Tia Maria´s project budget is approximately $1.4 billion, of which $340.6 million has been invested through March 31, 2020. This project will use state-of-the-art SX-EW technology with the highest international environmental standards. SX-EW facilities are the most environmentally friendly in the industry as they do not require a smelting process and therefore, do not release any emissions into the atmosphere.

Michiquillay:

In June 2018, the Company signed a contract for the acquisition of the Michiquillay copper project in Cajamarca, Peru, at a purchase price of $400 million. Michiquillay is a world class mining project with estimated mineralized material of 1,150 million tons and a copper grade of 0.63%. It is expected to produce 225,000 tons of copper per year (along with by-products of molybdenum, gold and silver) for an initial mine life of more than 25 years.

The Company paid $12.5 million at the signing of the contract. The balance of $387.5 million will be paid if the Company decides to develop the project which is not a present obligation.

Corporate Social Responsibility:

The Company has a corporate social responsibility policy to maintain and promote continuity of its mining operations and obtain the best results. The main objective of this policy is to integrate its operations with the local communities in the areas of influence of its operations by creating a permanent positive relationship with them, in order to develop the optimum social conditions and to promote sustainable development in the area. Accordingly, the Company has made the following commitments:

Tacna Region: In connection with the Toquepala concentrator expansion, the Company has committed to fund various social and infrastructure improvement projects in Toquepala’s neighboring communities. The total amount committed for these purposes is S/445.0 million (approximately $129.3 million).

As the Toquepala expansion project has been completed, the Company considers that these commitments constitute present obligations of the Company and consequently has recorded a liability of $59.1 million in its condensed consolidated financial statements as of March 31, 2020.

In addition, the Company has committed S/70.3 million (approximately $20.4 million) for the construction of one infrastructure project in the Tacna region under the “social investment for taxes” (obras por impuestos) program which allows the Company to use these amounts as an advance payment of taxes.

Moquegua Region: In the Moquegua region, the Company participates in a “development roundtable” with local municipal authorities and community representatives to discuss the social needs and the way the Company could contribute to sustainable development in the region. Currently, the roundtable is discussing the creation of a Moquegua Region Development Fund for which the Company has offered a contribution of S/1,000 million (approximately $290.7 million). While final funding is not yet settled, the Company has committed to contribute S/ 108.4 million (approximately $31.5 million) as an advance, which is being utilized to fund an educational project. In addition, there is a commitment to finance the construction of a residual water treatment plant in Ilo for S/78.0 million (approximately $22.7 million).

In addition, the Company has committed S/87.8 million (approximately $25.5 million) for the construction of two infrastructure projects in the Moquegua region under the “social investment for taxes” (obras por impuestos) program which allows the Company to use these amounts as an advance payment of taxes.

Power purchase agreements:

● Electroperu S.A.: In June 2014, the Company entered into a power purchase agreement for 120 megawatt (“MW”) with the state power company Electroperu S.A., under which Electroperu S.A. began supplying energy for the Peruvian operations for twenty years starting on April 17, 2017.

● Kallpa Generacion S.A. (“Kallpa”): In July 2014, the Company entered into a power purchase agreement for 120MW with Kallpa, an independent Israeli owned power company, under which Kallpa will supply energy for the Peruvian operations for ten years starting on April 17, 2017 and ending on April 30, 2027. In May 2016, the Company signed an additional power purchase agreement for a maximum of 80MW with Kallpa, under which Kallpa began supplying energy for the Peruvian operations related to the Toquepala Expansion and other minor projects for ten years starting on May 1, 2017 and ending after ten years of commercial operation of the Toquepala Expansion or on April 30, 2029; whichever occurs first.

Mexican operations

Power purchase agreements:

● MGE: In 2012, the Company signed a power purchase agreement with MGE, an indirect subsidiary of Grupo Mexico, to supply power to some of the Company’s Mexican operations through 2032. For further information, please see Note 6 “Related party transactions”.

● Eolica el Retiro, S.A.P.I. de C.V.: In 2013, the Company signed a power purchase agreement with Eolica el Retiro, S.A.P.I. de C.V. a windfarm energy producer that is an indirect subsidiary of Grupo Mexico, to supply power to some of the Company´s Mexican operations. For further information, please see Note 6 “Related party transactions”.

● Parque Eolico de Fenicias, S. de R.L. de C.V.: On February 20, 2020, the Company signed a power purchase agreement with Parque Eolico de Fenicias, S. de R.L. de C.V., and indirect subsidiary of Grupo Mexico, to supply 611,400 MWh of power per year to some of the Company´s Mexican operations for 20 years. This agreement will start in January 2021.

Corporate operations

Commitment for capital projects:

As of March 31, 2020, the Company has committed approximately $252.5 million for the development of its capital investment projects at its operations.

Tax contingency matters:

Tax contingencies are provided for under ASC 740-10-50-15 Uncertain tax position (see Note 5 “Income taxes”).

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FAIR VALUE MEASUREMENT: (Tables)

3 Months Ended

Mar. 31, 2020

FAIR VALUE MEASUREMENT:

Schedule of carrying amount and estimated fair values of the Company's financial instruments

	At March 31, 2020				At December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
Liabilities:
Long-term debt level 1		6,191.4		6,712.2		6,190.6		7,675.3
Long-term debt level 2		750.4		749.2		750.2		776.1
Total long-term debt	$	6,941.8	$	7,461.4	$	6,940.8	$	8,451.4

Schedule of fair values of assets and liabilities measured at fair value on a recurring basis

Fair values of assets and liabilities measured at fair value on a recurring basis were calculated as follows as of March 31, 2020 and December 31, 2019 (in millions):

	Fair Value at Measurement Date Using:
					Significant
	Fair Value		Quoted prices in		other		Significant
	as of		active markets for		observable		unobservable
	March 31,		identical assets		inputs		inputs
Description	2020		(Level 1)		(Level 2)		(Level 3)
Assets:
Short term investment:
—Trading securities	$	40.1	$	40.1	$	—	$	—
—Available-for-sale debt securities:
Corporate bonds		—		—		—		—
Asset backed securities		0.3		—		0.3		—
Mortgage backed securities		0.3		—		0.3		—
Accounts receivable:
—Embedded derivatives—Not classified as hedges:
Provisionally priced sales:
Copper		187.2		187.2		—		—
Molybdenum		125.1		125.1		—		—
Total	$	353.0	$	352.4	$	0.6	$	—

	Fair Value at Measurement Date Using:
					Significant
	Fair Value		Quoted prices in		other		Significant
	as of		active markets for		observable		unobservable
	December 31,		identical assets		inputs		inputs
Description	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
Short term investment:
—Trading securities	$	80.0	$	80.0	$	—	$	—
—Available-for-sale debt securities:
Corporate bonds		—		—		—		—
Asset backed securities		0.4		—		0.4		—
Mortgage backed securities		0.3		—		0.3		—
Accounts receivable:
—Embedded derivatives-Not classified as hedges:
Provisionally priced sales:
Copper		326.5		326.5		—		—
Molybdenum		126.8		126.8		—		—
Total	$	534.0	$	533.3	$	0.7	$	—

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (Details) - USD ($) $ in Millions	Jan. 01, 2020	Mar. 31, 2020	Dec. 31, 2019
LEASES:
Right-of-use assets		$ 1,029.6	$ 1,046.4
Lease obligation		$ 1,029.5
Inventory cost capitalization (decrease)	$ (48.8)
Inventory consumption increase	$ 10.3

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INCOME TAXES: (Tables)

3 Months Ended

Mar. 31, 2020

INCOME TAXES:

Schedule of income tax provision and effective income tax rate

The income tax provision and the effective income tax rate for the first quarter of 2020 and 2019 consisted of ($ in millions):

	2020			2019
Statutory income tax provision	$	207.4		$	214.7
Peruvian royalty		2.0			0.4
Mexican royalty		8.1			16.7
Peruvian special mining tax		4.2			6.1
Total income tax provision	$	221.7		$	237.9
Effective income tax rate		50.8	%		38.1	%

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SEGMENT AND RELATED INFORMATION:

3 Months Ended

Mar. 31, 2020

SEGMENT AND RELATED INFORMATION:

SEGMENT AND RELATED INFORMATION:

NOTE 14 — SEGMENT AND RELATED INFORMATION:

Company management views Southern Copper as having three reportable segments and manages it on the basis of these segments. The reportable segments identified by the Company are: the Peruvian operations, the Mexican open-pit operations and the Mexican underground mining operations segment identified as the IMMSA unit.

The three reportable segments identified are groups of mines, each of which constitute an operating segment, with similar economic characteristics, type of products, processes and support facilities, similar regulatory environments, similar employee bargaining contracts and similar currency risks. In addition, each mine within the individual group earns revenues from similar type of customers for their products and services and each group incurs expenses independently, including commercial transactions between groups.

Financial information is regularly prepared for each of the three segments and the results of the Company’s operations are regularly reported to Senior Management on the segment basis. Senior Management of the Company focus on operating income and on total assets as measures of performance to evaluate different segments and to make decisions to allocate resources to the reported segments. These are common measures in the mining industry.

Financial information relating to Southern Copper’s segments is as follows:

	Three Months Ended March 31, 2020
	(in millions)
			Mexican				Corporate, other
	Mexican		IMMSA		Peruvian		and
	Open-pit		Unit		Operations		eliminations		Consolidated
Net sales outside of segments	$	953.7	$	107.7	$	658.3	$	—	$	1,719.7
Intersegment sales		—		26.8		—		(26.8)		—
Cost of sales (exclusive of depreciation, amortization and depletion)		465.1		112.2		411.0		(32.5)		955.8
Selling, general and administrative		16.7		2.4		9.1		0.9		29.1
Depreciation, amortization and depletion		91.4		10.6		81.3		9.6		192.9
Exploration		0.7		2.9		1.6		3.4		8.6
Operating income	$	379.8	$	6.4	$	155.3	$	(8.2)		533.3
Less:
Interest, net										(89.0)
Other income (expense)										(7.4)
Income taxes										(221.7)
Equity earnings of affiliate										1.0
Non-controlling interest										(1.4)
Net income attributable to SCC									$	214.8
Capital investment	$	38.2	$	25.3	$	35.2	$	2.3	$	101.0
Property and mine development, net	$	4,420.7	$	505.7	$	3,832.5	$	529.8	$	9,288.7
Total assets	$	7,057.2	$	815.9	$	4,687.5	$	3,651.5	$	16,212.1

	Three Months Ended March 31, 2019
	(in millions)
			Mexican				Corporate, other
	Mexican		IMMSA		Peruvian		and
	Open-pit		Unit		Operations		eliminations		Consolidated
Net sales outside of segments	$	1,072.1	$	101.2	$	580.1	$	—	$	1,753.4
Intersegment sales		—		19.9		—		(19.9)		—
Cost of sales (exclusive of depreciation, amortization and depletion)		419.6		100.0		348.0		(23.5)		844.1
Selling, general and administrative		16.3		1.8		9.6		0.8		28.5
Depreciation, amortization and depletion		85.0		12.9		74.9		8.8		181.6
Exploration		0.4		2.0		2.9		0.2		5.5
Operating income	$	550.8	$	4.4	$	144.7	$	(6.2)		693.7
Less:
Interest, net										(74.1)
Other income (expense)										5.4
Income taxes										(237.9)
Equity earnings of affiliate										2.1
Non-controlling interest										(1.0)
Net income attributable to SCC									$	388.2
Capital investment	$	58.6	$	25.0	$	88.4	$	1.1	$	173.1
Property and mine development, net	$	4,780.6	$	460.9	$	3,798.4	$	343.7	$	9,383.6
Total assets	$	8,375.0	$	942.2	$	4,636.6	$	1,588.8	$	15,542.6

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LEASES: (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases
Lessee, operating lease, option to extend	false
Lessee, operating lease, option to terminate	false
The weighted average remaining lease term	10 years
The weighted average discount rate	3.60%
Total lease expense	$ 29,000,000.0	$ 28,900,000
Maturities of lease liabilities
2020	87,000,000.0
2021	116,000,000.0
2022	112,900,000
2023	111,600,000
2024	103,600,000
After 2024	826,300,000
Total lease payments	1,357,400,000
Less: interest on lease liabilities	(327,900,000)
Lease liabilities	1,029,500,000
Cost of sales (exclusive of depreciation, amortization and depletion)
Leases
Total lease expense	28,900,000	28,800,000
Selling, general and administrative
Leases
Total lease expense	$ 100,000	100,000
Minimum
Leases
Remaining lease terms	2 years
Maximum
Leases
Underlying asset value	$ 10,000
Total nominal contract value	$ 100,000
Remaining lease terms	13 years
Short term lease costs	$ 100,000
Maximum | Exploration
Leases
Total lease expense

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COMMITMENTS AND CONTINGENCIES: - Guaymas sulfuric acid spill (Details)		3 Months Ended
	Jul. 09, 2019 m³	Mar. 31, 2020 country item m³
Climate change [Member]
Period of sustainability reports issued		10 years
Number of leading companies in sustainability | country		42
Marine Terminal in Guaymas
Volume of sulfuric acid discharged in the incident at Guaymas	3
Water volume at Guaymas bay		340,000,000
Number of times of renewal | item		4
Number of years of each renewal		2 years

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REVENUE: - Provisionally prices sales (Details) lb in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) lb $ / item
Copper
Provisionally priced sales:
Provisional price sales adjustment amounts included in accounts receivable and net sales | $	$ 15.3
Copper | July 2019 to November 2019
Provisionally priced sales:
Sales volume (in million lbs.) | lb	83.5
Provisional price | $ / item	2.24
Molybdenum
Provisionally priced sales:
Provisional price sales adjustment amounts included in accounts receivable and net sales | $	$ 20.6
Molybdenum | July 2019 to September 2019
Provisionally priced sales:
Sales volume (in million lbs.) | lb	14.8
Provisional price | $ / item	8.43

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CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CONSOLIDATED STATEMENTS OF EARNINGS
Net sales (including sales to related parties, see Note 6)	$ 1,719.7	$ 1,753.4
Operating cost and expenses:
Cost of sales (exclusive of depreciation, amortization and depletion shown separately below)	955.8	844.1
Selling, general and administrative	29.1	28.5
Depreciation, amortization and depletion	192.9	181.6
Exploration	8.6	5.5
Total operating costs and expenses	1,186.4	1,059.7
Operating income	533.3	693.7
Interest expense	(101.9)	(90.1)
Capitalized interest	5.1	12.3
Other income (expense)	(7.4)	5.4
Interest income	7.8	3.7
Income before income taxes	436.9	625.0
Income taxes (including royalty taxes, see Note 5)	221.7	237.9
Net income before equity earnings of affiliate	215.2	387.1
Equity earnings (loss) of affiliate, net of income tax	1.0	2.1
Net income	216.2	389.2
Less: Net income attributable to the non-controlling interest	1.4	1.0
Net income attributable to SCC	$ 214.8	$ 388.2
Per common share amounts attributable to SCC:
Net earnings-basic and diluted	$ 0.28	$ 0.50
Dividends declared and paid	$ 0.4	$ 0.4
Weighted average shares outstanding-basic and diluted	773.1	773.0

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING ACTIVITIES
Net income	$ 216.2	$ 389.2
Adjustments to reconcile net earnings to net cash provided from operating activities:
Depreciation, amortization and depletion	192.9	181.6
Equity earnings of affiliate, net of dividends received	(1.0)	(1.1)
(Gain) loss on foreign currency transaction effect	(28.0)	2.3
Provision for deferred income taxes	7.5	38.9
Other, net	6.9	3.6
Change in operating assets and liabilities:
Decrease (increase) in accounts receivable	123.2	(54.2)
Decrease (increase) in inventories	70.4	(7.5)
(Decrease) in accounts payable and accrued liabilities	(102.4)	(132.9)
(Increase) in other operating assets and liabilities	(10.6)	(48.6)
Net cash provided by operating activities	475.1	371.3
INVESTING ACTIVITIES
Capital expenditures	(101.0)	(173.1)
Proceeds from sale (purchase) of short-term investments, net	40.0	0.3
Other	0.4
Net cash used in investing activities	(60.6)	(172.8)
FINANCING ACTIVITIES
Cash dividends paid to common stockholders	(309.2)	(309.2)
SCC shareholder derivative lawsuit - received from AMC		36.5
SCC shareholder derivative lawsuit - dividend paid		(36.5)
Other, net	(2.2)	(0.1)
Net cash used in financing activities	(311.4)	(309.3)
Effect of exchange rate changes on cash and cash equivalents	23.4	3.2
Increase (decrease) in cash and cash equivalents	126.5	(107.6)
Cash and cash equivalents, at beginning of year	1,925.1	844.6
Cash and cash equivalents, at end of year	$ 2,051.6	$ 737.0

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REVENUE: - Revenue by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2018
Revenue Recognition
Net sales	$ 1,719.7	$ 1,753.4	$ 1,753.4
Corporate, other and eliminations
Revenue Recognition
Net sales	(26.8)		(19.9)
Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	953.7		1,072.1
Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	134.5		121.1
Peruvian Operations | Operating segment
Revenue Recognition
Net sales	658.3		580.1
Copper
Revenue Recognition
Net sales	1,365.8		1,415.6
Copper | Corporate, other and eliminations
Revenue Recognition
Net sales	(12.9)		(12.9)
Copper | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	799.7		895.1
Copper | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	18.0		11.0
Copper | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	561.0		522.4
Molybdenum
Revenue Recognition
Net sales	126.1		118.3
Molybdenum | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	72.0		90.1
Molybdenum | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	54.1		28.2
Silver
Revenue Recognition
Net sales	88.1		76.8
Silver | Corporate, other and eliminations
Revenue Recognition
Net sales	(11.9)		(5.8)
Silver | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	44.6		50.4
Silver | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	35.4		17.3
Silver | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	20.0		14.9
Zinc
Revenue Recognition
Net sales	64.9		76.7
Zinc | Corporate, other and eliminations
Revenue Recognition
Net sales	(0.5)		(0.4)
Zinc | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	65.4		77.1
Other
Revenue Recognition
Net sales	74.8		66.0
Other | Corporate, other and eliminations
Revenue Recognition
Net sales	(1.5)		(0.8)
Other | Mexican Open-pit | Operating segment
Revenue Recognition
Net sales	37.4		36.5
Other | Mexican IMMSA Unit | Operating segment
Revenue Recognition
Net sales	15.7		15.7
Other | Peruvian Operations | Operating segment
Revenue Recognition
Net sales	$ 23.2		$ 14.6

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STOCKHOLDERS' EQUITY - Compensation Plan (Details) $ / shares in Units, $ in Millions	1 Months Ended				3 Months Ended
	Nov. 30, 2018 $ / shares	Nov. 30, 2018 $ / shares	Jan. 31, 2015 $ / shares	Jan. 31, 2015 $ / shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares
Information related to compensation cost
Stock based compensation expense | $						$ 0.1
Unrecognized compensation expense | $						$ 3.5
Retained earnings
Dividend per share | $ / shares					$ 0.4	$ 0.4
Employee Stock Purchase 2015 Plan
Information related to compensation cost
Purchase price for initial subscription (in dollars per share) | (per share)			$ 2.63	$ 38.44
Percentage of title acquired by employee in every two years on shares paid in previous two years					50.00%
Period of plan					8 years
Ratio of bonus shares granted to participant					0.1
Stock based compensation expense | $					$ 0.2	$ 0.2
Unrecognized compensation expense | $					$ 1.8	$ 2.4
Stock award activity, Shares
Outstanding shares at the beginning of the period | shares					1,379,734	1,840,336
Exercised (in shares) | shares					(54,221)	(247,670)
Outstanding shares at the end of the period | shares					1,325,513	1,592,666
Unit Weighted Average Grant Date Fair Value
Outstanding shares at the beginning of the period (in dollars per share) | $ / shares					$ 2.63	$ 2.63
Exercised (in dollars per share) | $ / shares					2.63	2.63
Outstanding shares at the end of the period (in dollars per share) | $ / shares					$ 2.63	$ 2.63
Employee Stock Purchase 2018 Plan
Information related to compensation cost
Purchase price for initial subscription (in dollars per share) | (per share)	$ 1.86	$ 37.89
Percentage of title acquired by employee in every two years on shares paid in previous two years					50.00%
Period of plan					8 years
Ratio of bonus shares granted to participant					0.1
Stock based compensation expense | $					$ 0.2
Unrecognized compensation expense | $					$ 4.3
Stock award activity, Shares
Outstanding shares at the beginning of the period | shares					4,002,898	2,782,424
Outstanding shares at the end of the period | shares					4,002,898	2,782,424
Unit Weighted Average Grant Date Fair Value
Outstanding shares at the beginning of the period (in dollars per share) | $ / shares					$ 1.86	$ 1.86
Outstanding shares at the end of the period (in dollars per share) | $ / shares					$ 1.86	$ 1.86

XML

COMMITMENTS AND CONTINGENCIES: - Others (Details) S/ in Millions			1 Months Ended				3 Months Ended
	Feb. 20, 2020 MW	Jul. 15, 2019 complaint	Jun. 30, 2018 USD ($) T	May 31, 2016 MW	Jul. 31, 2014 MW	Jun. 30, 2014 MW	Mar. 31, 2020 USD ($) item person km T	Mar. 31, 2020 PEN (S/) item person km T
Other commitments:
Commitment for capital projects							$ 252,500,000
Tia Maria | Peru
Other commitments:
Number of kilometer industrial railway built | km							32	32
Project budget							$ 1,400,000,000
Number Of Complaints | complaint		3
Amount spend as of the current date							$ 340,600,000
Annual production ( in tons) | T							120,000	120,000
Number of workers expected to be directly employed | item							600	600
Number of workers expected to be indirectly employed | item							4,200	4,200
Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects							$ 129,300,000	S/ 445.0
Commitment liability recorded in the balance sheet							59,100,000
Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects							$ 290,700,000	S/ 1,000.0
Copper | Michiquillay | Peru
Other commitments:
Annual production ( in tons) | T			225,000
Contingent contractual obligation			$ 400,000,000
Estimated mineralized material (in tons) | T			1,150,000,000
Copper grade percentage			0.63%
Initial mine life			25 years
Contractual obligation paid on project			$ 12,500,000
Remaining amount to pay if project is developed			$ 387,500,000
Educational Project | Tia Maria | Peru
Other commitments:
Number of persons got benefits from the programs | person							700	700
Number of jobs expected to be generated | person							9,000	9,000
Number of Direct Jobs Expected to be Generated | person							3,600	3,600
Number of Indirect Jobs Expected to be Generated | person							5,400	5,400
Educational Project | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects							$ 31,500,000	S/ 108.4
Water Treatment | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects							22,700,000	78.0
Social Investment For Taxes | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects							$ 20,400,000	S/ 70.3
Number of Infrastructure Projects Agreed for Construction | item							1	1
Social Investment For Taxes | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects							$ 25,500,000	S/ 87.8
Number of Infrastructure Projects Agreed for Construction							2
Electroperu S.A | Power purchase agreements | Peru
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW						120
Term of power purchase agreement related to sale of power plant						20 years
Parque Eolico de Fenicias, S. de R.L. de C.V | Power purchase agreements | Mexico
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW	611,400
Term of power purchase agreement related to sale of power plant	20 years
Kallpa | Power purchase agreements | Peru
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW					120
Term of power purchase agreement related to sale of power plant				10 years	10 years
Kallpa | Power purchase agreements | Peru | Maximum
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW				80

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COMMITMENTS AND CONTINGENCIES: (Tables)

3 Months Ended

Mar. 31, 2020

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital investments

Environmental capital investments in the three months ended March 31, 2020 and 2019 were as follows (in millions):

	2020		2019
Peruvian operations	$	2.5	$	10.2
Mexican operations		9.9		9.0
	$	12.4	$	19.2

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SEGMENT AND RELATED INFORMATION: (Tables)

3 Months Ended

Mar. 31, 2020

SEGMENT AND RELATED INFORMATION:

Schedule of financial information relating to Company's segments

	Three Months Ended March 31, 2020
	(in millions)
			Mexican				Corporate, other
	Mexican		IMMSA		Peruvian		and
	Open-pit		Unit		Operations		eliminations		Consolidated
Net sales outside of segments	$	953.7	$	107.7	$	658.3	$	—	$	1,719.7
Intersegment sales		—		26.8		—		(26.8)		—
Cost of sales (exclusive of depreciation, amortization and depletion)		465.1		112.2		411.0		(32.5)		955.8
Selling, general and administrative		16.7		2.4		9.1		0.9		29.1
Depreciation, amortization and depletion		91.4		10.6		81.3		9.6		192.9
Exploration		0.7		2.9		1.6		3.4		8.6
Operating income	$	379.8	$	6.4	$	155.3	$	(8.2)		533.3
Less:
Interest, net										(89.0)
Other income (expense)										(7.4)
Income taxes										(221.7)
Equity earnings of affiliate										1.0
Non-controlling interest										(1.4)
Net income attributable to SCC									$	214.8
Capital investment	$	38.2	$	25.3	$	35.2	$	2.3	$	101.0
Property and mine development, net	$	4,420.7	$	505.7	$	3,832.5	$	529.8	$	9,288.7
Total assets	$	7,057.2	$	815.9	$	4,687.5	$	3,651.5	$	16,212.1

	Three Months Ended March 31, 2019
	(in millions)
			Mexican				Corporate, other
	Mexican		IMMSA		Peruvian		and
	Open-pit		Unit		Operations		eliminations		Consolidated
Net sales outside of segments	$	1,072.1	$	101.2	$	580.1	$	—	$	1,753.4
Intersegment sales		—		19.9		—		(19.9)		—
Cost of sales (exclusive of depreciation, amortization and depletion)		419.6		100.0		348.0		(23.5)		844.1
Selling, general and administrative		16.3		1.8		9.6		0.8		28.5
Depreciation, amortization and depletion		85.0		12.9		74.9		8.8		181.6
Exploration		0.4		2.0		2.9		0.2		5.5
Operating income	$	550.8	$	4.4	$	144.7	$	(6.2)		693.7
Less:
Interest, net										(74.1)
Other income (expense)										5.4
Income taxes										(237.9)
Equity earnings of affiliate										2.1
Non-controlling interest										(1.0)
Net income attributable to SCC									$	388.2
Capital investment	$	58.6	$	25.0	$	88.4	$	1.1	$	173.1
Property and mine development, net	$	4,780.6	$	460.9	$	3,798.4	$	343.7	$	9,383.6
Total assets	$	8,375.0	$	942.2	$	4,636.6	$	1,588.8	$	15,542.6

Schedule of provisionally priced copper and molybdenum sales outstanding

Following are the provisionally priced copper and molybdenum sales outstanding at March 31, 2020:

	Sales volume	Priced at
	(million lbs.)	(per pound)	Month of settlement
Copper	83.5	2.24	April 2020 through July 2020
Molybdenum	14.8	8.43	April 2020 through July 2020

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INVENTORIES: (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Metals at average cost:
Finished goods	$ 82.1		$ 87.2
Work-in-process	263.8		259.7
Ore stockpiles on leach pads	385.1		358.4
Supplies at average cost	348.4		363.2
Total current inventory	1,079.4		1,068.5
Inventory, long-term:
Ore stockpiles on leach pads	1,149.0		$ 1,230.3
Total leaching costs added as long-term inventory of ore stockpiles in leach pads	50.7	$ 122.3
Long-term leaching inventories recognized as cost of sales	$ 105.9	$ 94.1

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ASSET RETIREMENT OBLIGATION:

3 Months Ended

Mar. 31, 2020

ASSET RETIREMENT OBLIGATION:

ASSET RETIREMENT OBLIGATION:

NOTE 8 — ASSET RETIREMENT OBLIGATION:

Peruvian operations:

The Company maintains an asset retirement obligation for its mining properties in Peru, as required by the Peruvian Mine Closure Law. In accordance with the requirements of this law the Company’s closure plans were approved by the Peruvian Ministry of Energy and Mines (“MINEM”). As part of the closure plans, the Company is required to provide

annual guarantees over the estimated life of the mines, based on a present value approach, and to furnish the funds for the asset retirement obligation. This law requires a review of closing plans every five years.

On June 24, 2019, MINEM approved a change to the guarantees required for the mining closure plans. The new regulation specifies that the annual guarantees can be secured with real estate up to a maximum of 50% and the remaining amount with credit instruments. Currently, the Company has pledged the value of its Lima office complex for the 50% of the guarantee and with a stand-by letter of credit for the other 50% as security for this obligation.Through January 2020, the Company has provided total guarantees of $47.1 million.

The closure cost recognized for this liability includes the cost, as outlined in its closure plans, of dismantling the Toquepala and Cuajone concentrators, the Ilo smelter and refinery, and the shops and auxiliary facilities at the three units. In March 2016, MINEM approved the Mining Closure Plan for the Toquepala expansion project and the revised closure plans for the Cuajone mine and the Ilo facilities were approved in January and October 2019, respectively. As result of these new estimates, the Company increased the asset retirement obligation by $28.1 million in 2019. The closure plan for the Tia Maria project was approved in February 2017. However, the Company has not recorded a retirement obligation for the Tia Maria project because the work on the project is still on hold. The Company believes that under these circumstances the recording of a retirement obligation is not appropriate.

Mexican operations:

The Company has recognized an estimated asset retirement obligation for its mining properties in Mexico as part of its environmental commitment. Even though there is currently no enacted law, statute, ordinance, written or oral contract requiring the Company to carry out mine closure and environmental remediation activities, the Company believes that a constructive obligation presently exists based on the remediation requirements caused by the closure of any facility. The overall cost recognized for mining closure in Mexico includes the estimated costs of dismantling concentrators, smelter and refinery plants, shops and other facilities.

The following table summarizes the asset retirement obligation activity for the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Balance as of January 1	$	262.3	$	217.7
Changes in estimates		—		28.1
Closure payments		(0.6)		(0.2)
Accretion expense		3.8		3.0
Balance as of March 31,	$	265.5	$	248.6

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INVENTORIES:

3 Months Ended

Mar. 31, 2020

INVENTORIES:

INVENTORIES:

NOTE 4 — INVENTORIES:

Inventories were as follows:

	At March 31,		At December 31,
(in millions)	2020		2019
Inventory, current:
Metals at average cost:
Finished goods	$	82.1	$	87.2
Work-in-process		263.8		259.7
Ore stockpiles on leach pads		385.1		358.4
Supplies at average cost		348.4		363.2
Total current inventory	$	1,079.4	$	1,068.5
Inventory, long-term:
Ore stockpiles on leach pads	$	1,149.0	$	1,230.3

During the three months ended March 31, 2020 and 2019, total leaching costs capitalized as non-current inventory of ore stockpiles on leach pads amounted to $50.7 million and $122.3 million, respectively. Leaching inventories recognized in cost of sales amounted to $105.9 million and $94.1 million for the three months March 31, 2020 and 2019, respectively.

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LEASES: (Tables)

3 Months Ended

Mar. 31, 2020

LEASES:

Schedule of the operating lease expense recognized

The operating lease expense recognized in the three months ended March 31, 2020 and 2019 was classified as follows (in millions):

Classification	2020		2019
Cost of sales (exclusive of depreciation, amortization and depletion)	$	28.9	$	28.8
Selling, general and administrative		0.1		0.1
Exploration		(*)		(*)
Total lease expense	$	29.0	$	28.9

(*) amount is lower than $0.1 million

Schedule of Maturities of lease liabilities

	Lease liabilities
Year	(in millions)
2020	$	87.0
2021		116.0
2022		112.9
2023		111.6
2024		103.6
After 2024		826.3
Total lease payments	$	1,357.4
Less: interest on lease liabilities		(327.9)
Present value of lease payments	$	1,029.5

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SHORT-TERM INVESTMENTS: (Tables)

3 Months Ended

Mar. 31, 2020

SHORT-TERM INVESTMENTS:

Schedule of short-term investments

Short-term investments were as follows ($ in millions):

	At March 31,			At December 31,
	2020			2019
Trading securities	$	40.1		$	80.0
Weighted average interest rate		1.9	%		2.0	%
Available-for-sale	$	0.6		$	0.7
Weighted average interest rate		0.7	%		0.7	%
Total	$	40.7		$	80.7

Summary of activity investments

The following table summarizes the activity of these investments by category (in millions):

	Three months ended
	March 31,
	2020		2019
Trading:
Interest earned	$	0.7	$	0.1
Unrealized gain (loss) at the end of the period	$	(*)	$	(0.1)
Available-for-sale:
Interest earned		(*)		(*)
Investment redeemed	$	0.1	$	—

(*) Less than $0.1 million.

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FAIR VALUE MEASUREMENT:

3 Months Ended

Mar. 31, 2020

FAIR VALUE MEASUREMENT:

FAIR VALUE MEASUREMENT:

NOTE 12 — FAIR VALUE MEASUREMENT:

Subtopic 820-10 of ASC “Fair value measurement and disclosures — Overall” establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under Subtopic 820-10 are described below:

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

Level 2 - Inputs that are observable, either directly or indirectly, but do not qualify as Level 1 inputs. (i.e., quoted prices for similar assets or liabilities).

Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

The carrying amounts of certain financial instruments, including cash and cash equivalents, accounts receivable (other than accounts receivable associated with provisionally priced sales) and accounts payable approximate fair value due to their short maturities. Consequently, such financial instruments are not included in the following table that provides information about the carrying amounts and estimated fair values of other financial instruments that are not measured at fair value in the condensed consolidated balance sheet as of March 31, 2020 and December 31, 2019 (in millions):

	At March 31, 2020				At December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
Liabilities:
Long-term debt level 1		6,191.4		6,712.2		6,190.6		7,675.3
Long-term debt level 2		750.4		749.2		750.2		776.1
Total long-term debt	$	6,941.8	$	7,461.4	$	6,940.8	$	8,451.4

Long-term debt is carried at amortized cost and its estimated fair value is based on quoted market prices classified as Level 1 in the fair value hierarchy except for the cases of the Yankee bonds, the notes due 2020 and the notes due 2022, which qualify as Level 2 in the fair value hierarchy as they are based on quoted prices in markets that are not active.

Fair values of assets and liabilities measured at fair value on a recurring basis were calculated as follows as of March 31, 2020 and December 31, 2019 (in millions):

	Fair Value at Measurement Date Using:
					Significant
	Fair Value		Quoted prices in		other		Significant
	as of		active markets for		observable		unobservable
	March 31,		identical assets		inputs		inputs
Description	2020		(Level 1)		(Level 2)		(Level 3)
Assets:
Short term investment:
—Trading securities	$	40.1	$	40.1	$	—	$	—
—Available-for-sale debt securities:
Corporate bonds		—		—		—		—
Asset backed securities		0.3		—		0.3		—
Mortgage backed securities		0.3		—		0.3		—
Accounts receivable:
—Embedded derivatives—Not classified as hedges:
Provisionally priced sales:
Copper		187.2		187.2		—		—
Molybdenum		125.1		125.1		—		—
Total	$	353.0	$	352.4	$	0.6	$	—

	Fair Value at Measurement Date Using:
					Significant
	Fair Value		Quoted prices in		other		Significant
	as of		active markets for		observable		unobservable
	December 31,		identical assets		inputs		inputs
Description	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
Short term investment:
—Trading securities	$	80.0	$	80.0	$	—	$	—
—Available-for-sale debt securities:
Corporate bonds		—		—		—		—
Asset backed securities		0.4		—		0.4		—
Mortgage backed securities		0.3		—		0.3		—
Accounts receivable:
—Embedded derivatives-Not classified as hedges:
Provisionally priced sales:
Copper		326.5		326.5		—		—
Molybdenum		126.8		126.8		—		—
Total	$	534.0	$	533.3	$	0.7	$	—

The Company’s short-term trading securities investments are classified as Level 1 because they are valued using quoted prices of the same securities as they consist of bonds issued by public companies and publicly traded. The Company’s short-term available-for-sale investments are classified as Level 2 because they are valued using quoted prices for similar investments.

The Company’s accounts receivables associated with provisionally priced copper sales are valued using quoted market prices based on the forward price on the LME or on the COMEX. Such value is classified within Level 1 of the fair value hierarchy. Molybdenum prices are established by reference to the publication Platt’s Metals Week and are considered Level 1 in the fair value hierarchy.

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SUBSEQUENT EVENTS: (Details) $ / shares in Units, $ in Millions	Apr. 23, 2020 $ / shares	Apr. 16, 2020 USD ($)	Apr. 15, 2020 USD ($)	Jul. 15, 2019 complaint
Tia Maria | Peru
SUBSEQUENT EVENTS:
Number of complaints | complaint				3
Subsequent Events
SUBSEQUENT EVENTS:
Quarterly dividend authorized (in dollars per share) | $ / shares	$ 0.20
Fixed-rate senior unsecured notes issued April 2010 | Subsequent Events
SUBSEQUENT EVENTS:
Debt term		10 years
Repayment of debt		$ 410.8	$ 400.0
Repayment of principal		400.0
Accrued interest paid		$ 10.8

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INCOME TAXES: - Other (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Taxes
Peruvian special mining tax	$ 4.2	$ 6.1
Peru
Income Taxes
Royalty charges	$ 9.3	$ 6.0

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BENEFIT PLANS: (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) plan	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Benefit plans
Number of noncontributory defined benefit pension plans | plan	2
Maximum
Defined benefit plan, net periodic benefit costs
Amortization of net loss (gain)	$ (0.1)		$ (0.1)
Post retirement defined benefit plans and defined contribution plan
Defined benefit plan, net periodic benefit costs
Service cost	0.4	$ 0.3
Interest cost	0.5	0.4
Expected return on plan assets	(0.7)	(0.8)
Net periodic benefit cost	0.2	(0.1)
Post-retirement Health care plans
Defined benefit plan, net periodic benefit costs
Interest cost	0.3	0.2
Net periodic benefit cost	0.3	0.2
Post-retirement Health care plans | Maximum
Defined benefit plan, net periodic benefit costs
Amortization of prior service cost (credit)	$ 0.1	$ 0.1

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COMMITMENTS AND CONTINGENCIES: - Labor matters (Details)	1 Months Ended						3 Months Ended
	Nov. 30, 2019 USD ($) agreement	Nov. 30, 2019 PEN (S/) agreement	Mar. 31, 2019 USD ($) item	Mar. 31, 2019 PEN (S/) item	Aug. 31, 2018 USD ($) item	Jun. 30, 2018	Mar. 31, 2020 USD ($) item employee	Dec. 31, 2018 PEN (S/)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 PEN (S/)	Aug. 22, 2018 USD ($)
Year Three Collective Bargaining Agreement
Labor matters
Labor expense | $	$ 13,600
Labor Matters
Labor matters
Annual salary increase (as a percent)	5.00%	5.00%
Number of agreements signed | agreement	2	2
Labor Matters | Year One Collective Bargaining Agreement
Labor matters
Term of agreement	1 year	1 year
Labor expense	$ 4,500	S/ 15,000
Labor Matters | Year Three Collective Bargaining Agreement
Labor matters
Term of agreement	3 years	3 years
Labor expense | S/		S/ 45,000
Peru | Labor Matters
Labor matters
Percentage of labor unionized							64.80%
Total number of workers | employee							4,886
Number of labor unions							6
Number of labor unions represent majority of workers							1
Number of labor unions other than majority workers unions							5
Term of agreement					3 years	3 years
Annual salary increase (as a percent)			5.00%	5.00%				5.00%	5.00%	5.00%
Labor expense			$ 13,600	S/ 45,000	$ 13,600			S/ 45,000	$ 13,600	S/ 45,000
Number of additional unions			1	1	3
Mexico | San Martin
Labor matters
Budgeted cost for rehabilitation of mine | $											$ 97,700,000
Total expense incurred on rehabilitation of mine till date | $							$ 78,600,000

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INVENTORIES: (Tables)

3 Months Ended

Mar. 31, 2020

INVENTORIES:

Schedule of inventories

	At March 31,		At December 31,
(in millions)	2020		2019
Inventory, current:
Metals at average cost:
Finished goods	$	82.1	$	87.2
Work-in-process		263.8		259.7
Ore stockpiles on leach pads		385.1		358.4
Supplies at average cost		348.4		363.2
Total current inventory	$	1,079.4	$	1,068.5
Inventory, long-term:
Ore stockpiles on leach pads	$	1,149.0	$	1,230.3

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REVENUE:

3 Months Ended

Mar. 31, 2020

REVENUE:

REVENUE:

NOTE 13 — REVENUE:

The Company’s net sales were $1,719.7 million in the three months ended March 31, 2020, compared to $1,753.4 million in the same period of 2019. The geographic breakdown of the Company’s sales is as follows (in millions):

	Three Months Ended March 31, 2020
			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
The Americas:
Mexico	$	363.6	$	99.2	$	—	$	(26.8)	$	436.0
United States		258.2		0.2		40.9		—		299.3
Peru		—		3.0		73.1		—		76.1
Brazil		—		3.5		54.5		—		58.0
Chile		1.9		—		48.2		—		50.1
Other American countries		8.3		0.9		0.2		—		9.4
Europe:
Switzerland		172.5		14.9		66.5		—		253.9
Italy		—		3.4		66.8		—		70.2
Spain		46.6		—		—		—		46.6
Other European countries		20.3		6.1		52.9		—		79.3
Asia:
Singapore		61.7		3.2		135.8		—		200.7
Japan		9.4		—		98.7		—		108.1
Other Asian countries		11.2		0.1		20.7		—		32.0
Total	$	953.7	$	134.5	$	658.3	$	(26.8)	$	1,719.7

	Three Months Ended March 31, 2019
			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
The Americas:
Mexico	$	351.3	$	86.8	$	—	$	(19.9)	$	418.2
United States		279.0		1.4		6.7		—		287.1
Peru		1.6		—		85.7		—		87.3
Brazil		—		7.2		48.3		—		55.5
Chile		1.1		—		20.0		—		21.1
Other American countries		12.8		0.5		1.8		—		15.1
Europe:
Switzerland		225.4		12.0		110.4		—		347.8
Italy		29.2		5.5		47.3		—		82.0
Spain		45.5		—		—		—		45.5
Other European countries		22.9		5.8		53.9		—		82.6
Asia:
Singapore		58.5		1.8		52.6		—		112.9
Japan		9.8		—		117.5		—		127.3
Other Asian countries		35.0		0.1		35.9		—		71.0
Total	$	1,072.1	$	121.1	$	580.1	$	(19.9)	$	1,753.4

The following table presents information regarding the sales value by reporting segment of the Company’s significant products for the three months ended March 31, 2020 and 2019 (in millions):

	Three Months Ended March 31, 2020
			Mexican
	Mexican		IMMSA		Peruvian		Corporate, Other &		Total
	Open-pit		Unit		Operations		Eliminations		Consolidated
Copper	$	799.7	$	18.0	$	561.0	$	(12.9)	$	1,365.8
Molybdenum		72.0		—		54.1		—		126.1
Silver		44.6		35.4		20.0		(11.9)		88.1
Zinc		—		65.4		—		(0.5)		64.9
Other		37.4		15.7		23.2		(1.5)		74.8
Total	$	953.7	$	134.5	$	658.3	$	(26.8)	$	1,719.7

	Three Months Ended March 31, 2019
			Mexican
	Mexican		IMMSA		Peruvian		Corporate, Other &		Total
	Open-pit		Unit		Operations		Eliminations		Consolidated
Copper	$	895.1	$	11.0	$	522.4	$	(12.9)	$	1,415.6
Molybdenum		90.1		—		28.2		—		118.3
Zinc		—		77.1		—		(0.4)		76.7
Silver		50.4		17.3		14.9		(5.8)		76.8
Other		36.5		15.7		14.6		(0.8)		66.0
Total	$	1,072.1	$	121.1	$	580.1	$	(19.9)	$	1,753.4

The opening and closing balances of receivables by reporting segment of the Company were as follows (in millions):

			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
As of March 31, 2020:
Trade receivables	$	411.1	$	44.4	$	254.2	$	—	$	709.7
Related parties, current		27.4		—		—		7.9		35.3
Related parties, non-current		59.0		—		—		—		59.0
As of December 31, 2019:
Trade receivables	$	477.8	$	38.0	$	317.1	$	—	$	832.9
Related parties, current		22.1		—		—		7.9		30.0
Related parties, non-current		59.5		—		—		—		59.5

As of March 31, 2020, the Company has long-term contracts with promises to deliver the following products in 2020:

Copper concentrates (in tons)	870,000
Copper cathodes (in tons)	48,000
Molybdenum concentrates (in tons)	24,061
Sulfuric acid (in tons)	292,400

Provisionally priced sales: At March 31, 2020, the Company has recorded provisionally priced sales of copper at average forward prices per pound, and molybdenum at the March 31, 2020 market price per pound. These sales are subject to final pricing based on the average monthly London Metal Exchange (“LME”), or New York Commodities Exchange (“COMEX”), copper prices and Dealer Oxide molybdenum prices in the future month of settlement.

Following are the provisionally priced copper and molybdenum sales outstanding at March 31, 2020:

	Sales volume	Priced at
	(million lbs.)	(per pound)	Month of settlement
Copper	83.5	2.24	April 2020 through July 2020
Molybdenum	14.8	8.43	April 2020 through July 2020

The provisional sales price adjustment included in accounts receivable and net sales at March 31, 2020 includes negative adjustments of $15.3 million and $20.6 million for copper and molybdenum, respectively.

Management believes that the final pricing of these sales will not have a material effect on the Company’s financial position or results of operations.

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ASSET RETIREMENT OBLIGATION: (Tables)

3 Months Ended

Mar. 31, 2020

ASSET RETIREMENT OBLIGATION:

Summary of asset retirement obligation activity

The following table summarizes the asset retirement obligation activity for the three months ended March 31, 2020 and 2019 (in millions):

	2020		2019
Balance as of January 1	$	262.3	$	217.7
Changes in estimates		—		28.1
Closure payments		(0.6)		(0.2)
Accretion expense		3.8		3.0
Balance as of March 31,	$	265.5	$	248.6

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COMMITMENTS AND CONTINGENCIES: - Litigation matters (Details)	3 Months Ended		6 Months Ended	12 Months Ended
	Mar. 31, 2020 item lawsuit claim	Sep. 30, 2016 lawsuit	Jun. 30, 2015 item lawsuit	Dec. 31, 2015 item lawsuit	Dec. 31, 2018 item	Dec. 31, 2017 lawsuit	Dec. 31, 2016 item
Litigation Matter
Number of collective action lawsuits			6
Number of subsidiaries against which lawsuits were filed | item			2
Number of collective action lawsuits dismissed			2
Number of lawsuits in process	4
Number of civil actions seeking damages						33
Number Of Constitutional Action Lawsuits				4
Number of subsidiaries to which environmental impact authorizations were granted | item				1
Tia Maria
Litigation Matter
Number of lawsuits	4
Buenavista del Cobre, S.A. de C.V
Litigation Matter
Number of civil actions seeking damages | item				8	3		3
Number of resolutions | claim	45
Francisca Garcia Enriquez
Litigation Matter
Number of additional constitutional lawsuits filed				2
Mario Alberto Salcido et al; Maria Elena Heredia Bustamante et al; Martin Eligio Ortiz Gamez et al and Maria de los Angeles Enriquez Bacame et al
Litigation Matter
Number of additional constitutional lawsuits filed		4
Mario Alberto Salcido et al; Maria Elena Heredia Bustamante et al; Martin Eligio Ortiz Gamez et al and Maria de los Angeles Enriquez Bacame et al | Mexico
Litigation Matter
Number of monitoring wells downstream from the dam | item	3
Period to submit Semarnat	2 years
Norberto Bustamante et al
Litigation Matter
Number of additional constitutional lawsuits filed	2
Acciones Colectivas de Sinaloa
Litigation Matter
Number of lawsuits in process	3
Defensa Colectiva
Litigation Matter
Number of lawsuits in process	1

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INCOME TAXES: (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Taxes
Statutory income tax provision	$ 207.4	$ 214.7
Peruvian royalty	2.0	0.4
Mexican royalty	8.1	16.7
Peruvian special mining tax	4.2	6.1
Total provision for income taxes	$ 221.7	$ 237.9
Effective income tax rate (as a percent)	50.80%	38.10%
Peru
Income Taxes
Peruvian royalty	$ 2.0	$ 0.4
Royalty charges	9.3	6.0
Accrued special mining tax	4.2	6.1
Mexico
Income Taxes
Mexican royalty	$ 8.1	$ 16.7

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ASSET RETIREMENT OBLIGATION: (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) item	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
ASSET RETIREMENT OBLIGATION:
Maximum annual guarantees secured	50.00%
Percentage of guarantee for Lima complex	50.00%
Percentage of security for LOC	50.00%
Total guarantees	$ 47.1
Asset retirement obligation activity
Balance at the beginning of the year	262.3	$ 217.7	$ 217.7
Changes in estimates		28.1
Closure Payments	(0.6)	(0.2)
Accretion expense	3.8	3.0
Balance at the end of the year	$ 265.5	$ 248.6	262.3
Peru
ASSET RETIREMENT OBLIGATION:
Period after which successive reviews are required by the law (in years)	5 years
Number of units with future closure costs recognized as an asset retirement obligation | item	3
Asset retirement obligation activity
Changes in estimates			$ 28.1

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income and comprehensive income	$ 216.2	$ 389.2
Comprehensive income attributable to the non-controlling interest	1.4	1.0
Comprehensive income attributable to SCC	$ 214.8	$ 388.2

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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	CAPITAL STOCK:	ADDITIONAL PAID-IN CAPITAL:	TREASURY STOCK: Southern Copper common shares	TREASURY STOCK: Parent Company (Grupo Mexico) common shares	TREASURY STOCK:	RETAINED EARNINGS:	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS):	STOCKHOLDERS' EQUITY	NON-CONTROLLING INTEREST	Total
Balance at beginning of period at Dec. 31, 2018		$ 3,393.7	$ (2,768.3)	$ (251.3)		$ 6,186.9	$ (2.4)	$ 6,567.4	$ 45.4	$ 6,612.8
Increase (Decrease) in Stockholders' Equity
Net earnings						388.2			1.0	388.2
Dividends/distributions declared and paid						(309.2)			(0.1)
SCC shareholder derivative lawsuit - received from AMC						36.5				(36.5)
SCC shareholder derivative lawsuit - dividend paid						(36.5)				36.5
Other activity, including dividend, interest and foreign currency transaction effect				(6.4)
Other activity of the period		6.7				(0.2)
Balance at end of period at Mar. 31, 2019	$ 8.8	3,400.4		(257.7)	$ (3,026.0)	6,265.7		6,646.5	46.3	6,692.8
Balance at beginning of period at Dec. 31, 2019		3,424.9	$ (2,767.9)	(281.0)		6,435.6	$ (10.1)	6,810.3	47.9	6,858.2
Increase (Decrease) in Stockholders' Equity
Net earnings						214.8			1.4	214.8
Dividends/distributions declared and paid						(309.2)			(2.3)
Other activity, including dividend, interest and foreign currency transaction effect				14.7
Other activity of the period		(14.4)
Balance at end of period at Mar. 31, 2020	$ 8.8	$ 3,410.5		$ (266.3)	$ (3,034.2)	$ 6,341.2		$ 6,716.2	$ 47.0	$ 6,763.2

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STOCKHOLDERS' EQUITY: - Non Controlling Interest (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Non-controlling interest activity
Balance at the beginning of the period	$ 47.9
Net earnings	1.4	$ 1.0
Dividend paid	(2.3)	(0.1)
Balance at the end of the period	$ 47.0	$ 46.3

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STOCKHOLDERS' EQUITY: - Treasury Stock (Details) - USD ($) $ in Millions	3 Months Ended		147 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Activity in treasury stock
Balance at the beginning of the period	$ 3,048.9
Purchase of shares			$ 2,900.0
Balance at the end of the period	$ 3,034.2	$ 3,026.0	$ 3,034.2
Southern Copper common shares
Activity in treasury stock
Treasury stock balance at the end of the period (in shares)	111,537,217		111,537,217
TREASURY STOCK: | Southern Copper common shares
Activity in treasury stock
Balance at the beginning of the period	$ 2,767.9	2,768.3
Balance at the end of the period	2,767.9	2,768.3	$ 2,767.9
TREASURY STOCK: | Parent Company (Grupo Mexico) common shares
Activity in treasury stock
Balance at the beginning of the period	281.0	251.3
Other activity, including dividend, interest and foreign currency transaction effect	(14.7)	6.4
Balance at the end of the period	$ 266.3	$ 257.7	$ 266.3
Treasury stock balance at the end of the period (in shares)	93,067,011		93,067,011	93,082,532

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REVENUE: - Receivables by reporting segment (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) T	Dec. 31, 2019 USD ($)
Opening and closing balances of receivables
Trade receivables	$ 709.7	$ 832.9
Related parties, current	35.3	30.0
Related parties, non-current	59.0	59.5
Corporate, other and eliminations
Opening and closing balances of receivables
Related parties, current	$ 7.9	7.9
Copper concentrates
Long Term Contracts
Long term contracts | T	870,000
Copper cathodes
Long Term Contracts
Long term contracts | T	48,000
Molybdenum concentrates
Long Term Contracts
Long term contracts | T	24,061
Sulfuric acid
Long Term Contracts
Long term contracts | T	292,400
Mexican Open-pit | Operating segment
Opening and closing balances of receivables
Trade receivables	$ 411.1	477.8
Related parties, current	27.4	22.1
Related parties, non-current	59.0	59.5
Mexican IMMSA Unit | Operating segment
Opening and closing balances of receivables
Trade receivables	44.4	38.0
Peruvian Operations | Operating segment
Opening and closing balances of receivables
Trade receivables	$ 254.2	$ 317.1

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SHORT-TERM INVESTMENTS: (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Short-term investment:
Trading securities	$ 40.1		$ 80.0
Weighted average interest rate (as a percent)	1.90%		2.00%
Available-for-sale	$ 0.6		$ 0.7
Weighted average interest rate (as a percent)	0.70%		0.70%
Total	$ 40.7		$ 80.7
Trading:
Interest earned	0.7	$ 0.1
Unrealized gain (loss) at the end of the period		(0.1)
Available-for-sale:
Interest earned	7.8	3.7
Investment redeemed	0.1
Maximum
Available-for-sale:
Interest earned	$ 0.1	$ 0.1

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BENEFIT PLANS: (Tables)

3 Months Ended

Mar. 31, 2020

Post retirement defined benefit plans and defined contribution plan

Components of net periodic benefit costs

Schedule of the components of net periodic benefit costs

The components of net periodic benefit costs for the three months ended March 31, 2020 and 2019 are as follows (in millions):

(in millions)	2020		2019
Service cost	$	0.4	$	0.3
Interest cost		0.5		0.4
Expected return on plan assets		(0.7)		(0.8)
Amortization of prior service cost / (credit)		(*)		(*)
Amortization of net loss/(gain)		(*)		(*)
Net periodic benefit cost	$	0.2	$	(0.1)

Post-retirement Health care plans

Components of net periodic benefit costs

Schedule of the components of net periodic benefit costs

The components of net periodic benefit cost for the three months ended March 31, 2020 and 2019 are as follows (in millions):

(in millions)	2020		2019
Interest cost	$	0.3	$	0.2
Amortization of net loss (gain)		(*)		(*)
Amortization of prior service cost/ (credit)		(*)		(*)
Net periodic benefit cost	$	0.3	$	0.2

(*) amount is lower than $0.1 million

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REVENUE: (Tables)

3 Months Ended

Mar. 31, 2020

REVENUE:

Summary of company's sales by geographic wise and segment wise

	Three Months Ended March 31, 2020
			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
The Americas:
Mexico	$	363.6	$	99.2	$	—	$	(26.8)	$	436.0
United States		258.2		0.2		40.9		—		299.3
Peru		—		3.0		73.1		—		76.1
Brazil		—		3.5		54.5		—		58.0
Chile		1.9		—		48.2		—		50.1
Other American countries		8.3		0.9		0.2		—		9.4
Europe:
Switzerland		172.5		14.9		66.5		—		253.9
Italy		—		3.4		66.8		—		70.2
Spain		46.6		—		—		—		46.6
Other European countries		20.3		6.1		52.9		—		79.3
Asia:
Singapore		61.7		3.2		135.8		—		200.7
Japan		9.4		—		98.7		—		108.1
Other Asian countries		11.2		0.1		20.7		—		32.0
Total	$	953.7	$	134.5	$	658.3	$	(26.8)	$	1,719.7

	Three Months Ended March 31, 2019
			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
The Americas:
Mexico	$	351.3	$	86.8	$	—	$	(19.9)	$	418.2
United States		279.0		1.4		6.7		—		287.1
Peru		1.6		—		85.7		—		87.3
Brazil		—		7.2		48.3		—		55.5
Chile		1.1		—		20.0		—		21.1
Other American countries		12.8		0.5		1.8		—		15.1
Europe:
Switzerland		225.4		12.0		110.4		—		347.8
Italy		29.2		5.5		47.3		—		82.0
Spain		45.5		—		—		—		45.5
Other European countries		22.9		5.8		53.9		—		82.6
Asia:
Singapore		58.5		1.8		52.6		—		112.9
Japan		9.8		—		117.5		—		127.3
Other Asian countries		35.0		0.1		35.9		—		71.0
Total	$	1,072.1	$	121.1	$	580.1	$	(19.9)	$	1,753.4

The following table presents information regarding the sales value by reporting segment of the Company’s significant products for the three months ended March 31, 2020 and 2019 (in millions):

	Three Months Ended March 31, 2020
			Mexican
	Mexican		IMMSA		Peruvian		Corporate, Other &		Total
	Open-pit		Unit		Operations		Eliminations		Consolidated
Copper	$	799.7	$	18.0	$	561.0	$	(12.9)	$	1,365.8
Molybdenum		72.0		—		54.1		—		126.1
Silver		44.6		35.4		20.0		(11.9)		88.1
Zinc		—		65.4		—		(0.5)		64.9
Other		37.4		15.7		23.2		(1.5)		74.8
Total	$	953.7	$	134.5	$	658.3	$	(26.8)	$	1,719.7

	Three Months Ended March 31, 2019
			Mexican
	Mexican		IMMSA		Peruvian		Corporate, Other &		Total
	Open-pit		Unit		Operations		Eliminations		Consolidated
Copper	$	895.1	$	11.0	$	522.4	$	(12.9)	$	1,415.6
Molybdenum		90.1		—		28.2		—		118.3
Zinc		—		77.1		—		(0.4)		76.7
Silver		50.4		17.3		14.9		(5.8)		76.8
Other		36.5		15.7		14.6		(0.8)		66.0
Total	$	1,072.1	$	121.1	$	580.1	$	(19.9)	$	1,753.4

Schedule of opening and closing balances of receivables by reporting segment

The opening and closing balances of receivables by reporting segment of the Company were as follows (in millions):

			Mexican
	Mexican		IMMSA		Peruvian		Corporate &
	Open-Pit		Unit		Operations		Elimination		Consolidated
As of March 31, 2020:
Trade receivables	$	411.1	$	44.4	$	254.2	$	—	$	709.7
Related parties, current		27.4		—		—		7.9		35.3
Related parties, non-current		59.0		—		—		—		59.0
As of December 31, 2019:
Trade receivables	$	477.8	$	38.0	$	317.1	$	—	$	832.9
Related parties, current		22.1		—		—		7.9		30.0
Related parties, non-current		59.5		—		—		—		59.5

Schedule long term contracts by products

As of March 31, 2020, the Company has long-term contracts with promises to deliver the following products in 2020:

Copper concentrates (in tons)	870,000
Copper cathodes (in tons)	48,000
Molybdenum concentrates (in tons)	24,061
Sulfuric acid (in tons)	292,400

Schedule of provisionally priced copper and molybdenum sales outstanding

Following are the provisionally priced copper and molybdenum sales outstanding at March 31, 2020:

	Sales volume	Priced at
	(million lbs.)	(per pound)	Month of settlement
Copper	83.5	2.24	April 2020 through July 2020
Molybdenum	14.8	8.43	April 2020 through July 2020

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BENEFIT PLANS:

3 Months Ended

Mar. 31, 2020

BENEFIT PLANS:

BENEFIT PLANS:

NOTE 9 — BENEFIT PLANS:

Post retirement defined benefit plans:

The Company has two noncontributory defined benefit pension plans covering former salaried employees in the United States and certain former expatriate employees in Peru. Effective October 31, 2000, the Board of Directors amended the qualified pension plan to suspend the accrual of benefits.

In addition, the Company’s Mexican subsidiaries have a defined contribution pension plan for salaried employees and a non-contributory defined benefit pension plan for union employees.

The components of net periodic benefit costs for the three months ended March 31, 2020 and 2019 are as follows (in millions):

(in millions)	2020		2019
Service cost	$	0.4	$	0.3
Interest cost		0.5		0.4
Expected return on plan assets		(0.7)		(0.8)
Amortization of prior service cost / (credit)		(*)		(*)
Amortization of net loss/(gain)		(*)		(*)
Net periodic benefit cost	$	0.2	$	(0.1)

(*) amount is lower than $0.1 million

Post-retirement health care plans:

United States: The Company adopted a post-retirement health care plan for retired salaried employees eligible for Medicare in 1996. The Company manages the plan and is currently providing health benefits to retirees. The plan is accounted for in accordance with ASC 715 “Compensation retirement benefits”.

In Mexico, health services are provided by the Mexican Social Security Institute.

The components of net periodic benefit cost for the three months ended March 31, 2020 and 2019 are as follows (in millions):

(in millions)	2020		2019
Interest cost	$	0.3	$	0.2
Amortization of net loss (gain)		(*)		(*)
Amortization of prior service cost/ (credit)		(*)		(*)
Net periodic benefit cost	$	0.3	$	0.2

(*) amount is lower than $0.1 million

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INCOME TAXES:

3 Months Ended

Mar. 31, 2020

INCOME TAXES:

INCOME TAXES:

NOTE 5 — INCOME TAXES:

The income tax provision and the effective income tax rate for the first quarter of 2020 and 2019 consisted of ($ in millions):

	2020			2019
Statutory income tax provision	$	207.4		$	214.7
Peruvian royalty		2.0			0.4
Mexican royalty		8.1			16.7
Peruvian special mining tax		4.2			6.1
Total income tax provision	$	221.7		$	237.9
Effective income tax rate		50.8	%		38.1	%

These provisions include income taxes for Peru, Mexico and the United States. In addition, the Mexican royalty, the Peruvian royalty and the Peruvian special mining tax are included in the income tax provision. The increase in the 2020 effective income tax rate from the same period in 2019 was primarily attributed to a movement in exchange gains and losses from the devaluation of the Mexican peso and the Peruvian sol versus the U.S. dollar.

Peruvian royalty and special mining tax: The Company has accrued $9.3 million and $6.0 million of royalty charge in the first quarter of 2020 and 2019, respectively, of which $2.0 million and $0.4 million were included in income taxes in 2020 and 2019, respectively.

The Company has accrued $4.2 million and $6.1 million of special mining tax as part of the income tax provision for the first quarter of 2020 and 2019, respectively.

Mexican mining royalty: The Company has accrued $8.1 million and $16.7 million of royalty taxes as part of the income tax provision for the first quarter of 2020 and 2019, respectively.

Accounting for uncertainty in income taxes: In the first quarter of 2020, there were no changes in the Company’s uncertain tax positions.