SEGMENTS OF BUSINESS

3 Months Ended

Mar. 31, 2025

SEGMENTS OF BUSINESS

SEGMENTS OF BUSINESS

(14) SEGMENTS OF BUSINESS

Our business is organized based on the services and products we provide in two segments: (i) Electric Operations and (ii) Coal Operations. The Chief Operating Decision Maker (“CODM”), who is the Company’s Chief Executive Officer, reviews and assesses operating performance measures related to our Electric Operations and our Coal Operations segments.

Our Electric Operations segment includes the electric power generation facilities of our Merom power plant, which is a two unit, 1080-megawatt rated coal fired power plant located in Sullivan County, Indiana. Our sales region is in MISO Zone 6, which includes Indiana and a portion of western Kentucky. Revenues from our Electric Operations segment consist primarily of delivered energy and capacity revenues. Fuel costs included in our Electric Operations segment include the cost of coal purchased from our Coal Operations segment, which are based on multi-year contracts which approximate market prices at the time the contracts are entered into.

Our Coal Operations segment includes the Oaktown 1 underground mining complex, as well as other currently idled mining facilities, which produce high-quality bituminous coal from the Illinois Basin. Revenues from our Coal Operations segment consist of sales of coal to various third-parties and to Merom. Coal sales to our Electric Operations are based on multi-year contracts which approximate market prices at the time the contracts are entered into. Intercompany coal sales and amounts above actual costs to produce the coal are eliminated in the consolidated statements of operations.

In addition to these reportable segments, the Company has a “Corporate and Other and Eliminations” category, which is not significant enough, on a stand-alone basis, to be considered an operating segment. Corporate and Other and Eliminations primarily consist of unallocated corporate costs and activities, including our equity method investments.

The CODM evaluates segment performance based upon EBITDA margin for each business segment. EBITDA margin is calculated for each segment as follows:

1. For our Electric Operations segment, EBITDA margin is comprised of delivered energy revenues less certain significant segment expenses, which include (i) variable costs, (ii) other operating and maintenance costs, (iii) costs of purchased power, (iv) utilities, (v) labor and (vi) general and administrative costs. Variable operating costs are comprised of fuel costs and certain other operating costs, such as limestone and soda ash.

2. For our Coal Operations segment, EBITDA margin is comprised of coal sales less certain significant segment expenses, which include (i) fuel, (ii) other operating and maintenance costs, (iii) utilities, (iv) labor and (v) general and administrative costs.

EBITDA margin for each segment is a key measure used by our CODM and provides information about our core operating performance, significant expenses and ability to generate cash flow. Additionally, EBITDA margin provides investors with the financial analytical framework upon which our CODM bases financial, operational, compensation and planning decisions and presents a measurement that investors, rating agencies and debt holders have indicated is useful in assessing us and our results of operations. Our CODM reviews variable costs, as defined above, in our Electric Operations segment in order to evaluate the efficiency of that segments operations.

Presented below are the Electric and Coal Operations key metrics reviewed by the CODM at March 31, 2025 (in thousands):

	Electric Operations			Coal Operations
Delivered Energy	$	72,136	Coal Sales	$	54,774
Capacity Revenue		13,807
Electric Sales	$	85,943
Fuel	$	(38,071)
Other Operating Costs (1)		(8)
Total Variable Costs	$	(38,079)
Other Operating and Maintenance Costs (2)	$	(4,527)	Fuel	$	(556)
Cost of Purchased Power		(6,840)	Other Operating and Maintenance Costs		(23,854)
Utilities		(676)	Utilities		(3,476)
Labor		(8,143)	Labor		(18,886)
Power Margin Without General and Administrative		27,678	Coal Margin Without General and Administrative		8,002
General and Administrative		(1,535)	General and Administrative		(2,313)
Electric Operations — EBITDA Margin	$	26,143	Coal Operations — EBITDA Margin	$	5,689
(1) Other operating costs include costs for limestone, dibasic acid, ammonia, lime dust and soda ash.
(2) Other operating and maintenance costs include all other operating and maintenance costs with the exceptions of those costs considered variable as discussed above in (1).

Presented below are the Electric and Coal Operations key metrics reviewed by the CODM at March 31, 2024 (in thousands):

	Electric Operations			Coal Operations
Delivered Energy	$	48,908	Coal Sales	$	66,036
Capacity Revenue		11,773
Electric Sales	$	60,681
Fuel	$	(24,435)
Other Operating Costs (1)		(493)
Total Variable Costs	$	(24,928)
Other Operating and Maintenance Costs (2)	$	(4,886)	Fuel	$	(1,235)
Cost of Purchased Power		(1,926)	Other Operating and Maintenance Costs		(31,791)
Utilities		(302)	Utilities		(4,292)
Labor		(7,683)	Labor		(27,485)
Power Margin Without General and Administrative		20,956	Coal Margin Without General and Administrative		1,233
General and Administrative		(1,058)	General and Administrative		(2,438)
Electric Operations — EBITDA Margin	$	19,898	Coal Operations — EBITDA Margin	$	(1,205)
(1) Other operating costs include costs for limestone, dibasic acid, ammonia, lime dust and soda ash.
(2) Other operating and maintenance costs include all other operating and maintenance costs with the exceptions of those costs considered variable as discussed above in (1).

Presented below are the Electric and Coal Operations revenues reconciled to our consolidated operating revenues at March 31, 2025 (in thousands):

					Corporate and Other
Reconciliation of Revenue:	Electric Operations		Coal Operations		and Eliminations		Consolidated
Delivered Energy	$	72,136	$	—	$	—	$	72,136
Capacity Revenue		13,807		—		—		13,807
Other Operating Revenue		87		1,324		248		1,659
Coal Sales (Third-Party)		—		30,185		—		30,185
Coal Sales (Intercompany)		—		24,589		(24,589)		—
Operating Revenues	$	86,030	$	56,098	$	(24,341)	$	117,787

Presented below are the Electric and Coal Operations revenues reconciled to our consolidated operating revenues at March 31, 2024 (in thousands):

					Corporate and Other
Reconciliation of Revenue:	Electric Operations		Coal Operations		and Eliminations		Consolidated
Delivered Energy	$	48,908	$	—	$	—	$	48,908
Capacity Revenue		11,773		—		—		11,773
Other Operating Revenue		157		810		296		1,263
Coal Sales (Third-Party)		—		49,630		—		49,630
Coal Sales (Intercompany)		—		16,406		(16,406)		—
Operating Revenues	$	60,838	$	66,846	$	(16,110)	$	111,574

Presented below is our reconciliation of EBITDA Margin to the most comparable GAAP account, income (loss) before income taxes at March 31, 2025 (in thousands):

					Corporate and Other
Reconciliation of Income (Loss) before Income Taxes:	Electric Operations		Coal Operations		and Eliminations		Consolidated
Electric Operations — EBITDA Margin	$	26,143	$	—	$	23,417	$	49,560
Coal Operations — EBITDA Margin		—		5,689		(24,589)		(18,900)
Other Operating Revenue		87		1,324		248		1,659
Depreciation, Depletion and Amortization		(5,161)		(9,797)		(19)		(14,977)
Asset Retirement Obligations Accretion		(120)		(307)		—		(427)
Exploration Costs		—		(21)		—		(21)
Gain (loss) on disposal or abandonment of assets, net		—		21		—		21
Interest Expense		(1,732)		(1,991)		—		(3,723)
Equity Method Investment (Loss)		—		—		(236)		(236)
Corporate — General and Administrative		—		—		(2,977)		(2,977)
Income (Loss) before Income Taxes	$	19,217	$	(5,082)	$	(4,156)	$	9,979

Presented below is our reconciliation of EBITDA Margin to the most comparable GAAP account, income (loss) before income taxes at March 31, 2024 (in thousands):

					Corporate and Other
Reconciliation of Income (Loss) before Income Taxes:	Electric Operations		Coal Operations		and Eliminations		Consolidated
Electric Operations — EBITDA Margin	$	19,898	$	—	$	17,611	$	37,509
Coal Operations — EBITDA Margin		—		(1,205)		(16,406)		(17,611)
Other Operating Revenue		157		810		296		1,263
Depreciation, Depletion and Amortization		(4,697)		(10,728)		(18)		(15,443)
Asset Retirement Obligations Accretion		(111)		(288)		—		(399)
Exploration Costs		—		(70)		—		(70)
Gain (loss) on disposal or abandonment of assets, net		—		24		—		24
Interest Expense		(148)		(3,209)		(580)		(3,937)
Loss on Extinguishment of Debt		—		—		(853)		(853)
Equity Method Investment (Loss)		—		—		(249)		(249)
Corporate — General and Administrative		—		—		(2,448)		(2,448)
Corporate — Other Operating and Maintenance Costs		—		—		(92)		(92)
Income (Loss) before Income Taxes	$	15,099	$	(14,666)	$	(2,739)	$	(2,306)

Presented below are our Electric and Coal Operations assets and capital expenditures at March 31, 2025 (in thousands):

					Corporate and Other
Other Reconciliations:	Electric Operations		Coal Operations		and Eliminations		Consolidated
Assets	$	222,865	$	141,023	$	2,209	$	366,097
Capital Expenditures	$	5,449	$	6,244	$	—	$	11,693

Presented below are our Electric and Coal Operations assets and capital expenditures at March 31, 2024 (in thousands):

					Corporate and Other
Other Reconciliations:	Electric Operations		Coal Operations		and Eliminations		Consolidated
Assets	$	211,116	$	370,292	$	4,012	$	585,420
Capital Expenditures	$	6,242	$	8,632	$	—	$	14,874