PENSION AND POSTRETIREMENT HEALTH AND LIFE BENEFITS

The components of net periodic benefit cost (credit) for the pension plans were as follows (in millions):



	Three Months Ended June 30,						Six Months Ended June 30,
	Successor			Predecessor			Successor			Predecessor
	2015			2014			2015			2014
Service costs	$	1.0		$	0.6		$	2.0		$	1.2
Interest costs	9.3			10.6			18.6			21.1
Expected return on plan assets (gains)	(12.2		)	(12.8		)	(24.4		)	(25.6		)
Amortization of actuarial (gains) losses, net	—			0.3			—			0.6
Actuarial (gain) from remeasurement	(3.9		)	—			(3.9		)	—
Net periodic benefit cost (credit)	$	(5.8	)	$	(1.3	)	$	(7.7	)	$	(2.7	)

The components of net periodic benefit cost for the postretirement health and life benefit plans were as follows (in millions):



	Three Months Ended June 30,						Six Months Ended June 30,
	Successor			Predecessor			Successor			Predecessor
	2015			2014			2015			2014
Service costs	$	—		$	0.4		$	0.1		$	0.9
Interest costs	2.2			2.5			4.4			5.0
Expected return on plan assets (gains)	(0.3		)	(0.5		)	(0.5		)	(1.0		)
Amortization of prior service costs (credits), net	—			(0.1		)	(0.1		)	(0.2		)
Net periodic benefit cost	$	1.9		$	2.3		$	3.9		$	4.7

Centrus contributed $7.4 million to the non-qualified defined benefit pension plans in the six months ended June 30, 2015, and expects to contribute less than $1.0 million in the remainder of 2015. The Company does not expect there to be a required contribution for the qualified defined benefit pension plans in 2015, and therefore, does not expect to contribute in 2015. There is no required contribution for the postretirement health and life benefit plans under Employee Retirement Income Security Act (“ERISA”), and the Company does not expect to contribute in 2015.

Lump-sum payments in the six months ended June 30, 2015 to former employees including those affected by workforce reductions totaled $7.3 million for the non-qualified defined benefit pension plans and $3.1 million for the Employees’ Retirement Plan of Centrus Energy Corp. Under settlement accounting rules, these payments resulted in the remeasurement of pension obligations for these plans as of June 30, 2015. The interim remeasurement was required since the payments exceeded the sum of the service cost and interest cost components of the annual net periodic benefit cost for each plan for the current year. Lump-sum payments to employees in the Retirement Program Plan for Employees of United States Enrichment Corporation totaled $37.9 million in the six months ended June 30, 2015 and did not meet the settlement accounting threshold for that plan.

The remeasurement of pension obligations as of June 30, 2015 resulted in a gain of $3.9 million included in selling, general and administrative expenses in the three and six months ended June 30, 2015. The discount rate used in the measurement of pension obligations for the affected plans increased from approximately 4.1% as of December 31, 2014 to approximately 4.5% as of June 30, 2015. Effective with the adoption of fresh start accounting as of September 30, 2014, Centrus immediately recognizes actuarial gains and losses in the statement of operations in the period in which they arise.

Other Plan Update

The opportunity to participate in the Executive Deferred Compensation Plan was reactivated in June 2015 allowing deferrals beginning in July 2015. Enrollment in the plan had been suspended since January 2013. Qualified employees may defer compensation on a tax-deferred basis subject to plan limitations. Any matching contributions under the Company’s 401(k) plan that are foregone due to annual compensation limitations of the Internal Revenue Code are eligible to be received from the Company under the Executive Deferred Compensation Plan, provided that the employee deferred the maximum allowable pre-tax contribution in the 401(k) plan.