The following tables, which are reconciled to consolidated amounts, provide revenues and gross profit (loss) by line of business: Building Materials (further divided by product line) and Magnesia Specialties. Interproduct revenues represent sales from the aggregates product line to the cement and ready mixed concrete and asphalt and paving product lines.


	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2025			2024			2025			2024
	(Dollars in Millions)
Revenues:
Building Materials business:
Aggregates	$	1,320		$	1,242		$	2,322		$	2,127
Cement and ready mixed concrete		245			261			477			526
Asphalt and paving services		228			245			308			303
Less: interproduct revenues		(72	)		(65	)		(121	)		(102	)
Total Building Materials business		1,721			1,683			2,986			2,854
Magnesia Specialties		90			81			178			161
Total	$	1,811		$	1,764		$	3,164		$	3,015

Gross profit (loss):
Building Materials business:
Aggregates	$	430		$	392		$	726		$	632
Cement and ready mixed concrete		54			72			78			103
Asphalt and paving services		33			37			11			15
Total Building Materials business		517			501			815			750
Magnesia Specialties		36			27			74			56
Corporate		(9	)		(11	)		(10	)		(16	)
Total	$	544		$	517		$	879		$	790

Performance Obligations. Performance obligations are contractual promises to transfer or provide a distinct good or service for a stated price. The Company’s product sales agreements are single-performance obligations that are satisfied at a point in time. Performance obligations within paving service agreements are satisfied over time, primarily ranging from one day to two years. Customer payments for the paving operations are based on a contractual billing schedule and are typically "paid-when-paid", meaning the Company is paid once the customer is paid.

Future revenues from unsatisfied performance obligations at June 30, 2025 and 2024 were $252 million and $377 million, respectively, where the remaining periods to complete these obligations ranged from one month to 30 months and one month to 18 months, respectively.

Service Revenues. Service revenues were $102 million and $117 million for the three months ended June 30, 2025 and 2024, respectively, and reported in the West Group. Service revenues for the six months ended June 30, 2025 and 2024 were $137 million and $143 million, respectively. Service revenues include paving services located in California through its April 2025 divestiture date and Colorado.