We evaluate performance and allocate resources based on the Animal Health, Mineral Nutrition and Performance Products segments. Certain of our costs and assets are not directly attributable to these segments. We do not allocate such items to the principal segments because they are not used to evaluate their operating results or financial position. Corporate costs include the departmental operating costs of the Board of Directors, the Chairman, President and Chief Executive Officer, the Chief Operating Officer, the Chief Financial Officer, the Senior Vice President and General Counsel, the Senior Vice President of Human Resources, the Chief Information Officer and the Executive Vice President of Corporate Strategy. Costs include the executives and their staffs and include compensation and benefits, outside services, professional fees and office space. Assets include cash and cash equivalents, debt issue costs and certain other assets.

We evaluate performance of our segments based on Adjusted EBITDA. We define Adjusted EBITDA as EBITDA plus (a) (income) loss from, and disposal of, discontinued operations, (b) other expense or less other income, as separately reported on our consolidated statements of operations, including foreign currency gains and losses and loss on extinguishment of debt, and (c) certain items that we consider to be unusual or non-recurring. We define EBITDA as net income plus (i) interest expense, net, (ii) provision for income taxes or less benefit for income taxes and (iii) depreciation and amortization.

The accounting policies of our segments are the same as those described in the summary of significant accounting policies included herein.

For the Years Ended June 30
Net sales
Animal Health	$	431,053		$	384,941		$	375,167
Mineral Nutrition		201,599			203,169			210,091
Performance Products		59,262			65,041			68,843
	$	691,914		$	653,151		$	654,101
Adjusted EBITDA
Animal Health	$	100,280		$	82,997		$	70,456
Mineral Nutrition		11,636			12,069			13,007
Performance Products		4,626			2,927			5,132
Corporate		(25,945	)		(22,239	)		(21,743	)
	$	90,597		$	75,754		$	66,852
Reconciliation of Adjusted EBITDA to income before income taxes
Adjusted EBITDA	$	90,597		$	75,754		$	66,852
Depreciation and amortization		(21,453	)		(19,023	)		(17,527	)
Loss on insurance claim		(5,350	)		—			—
Interest expense, net		(32,962	)		(35,629	)		(35,419	)
Foreign currency gains (losses), net		(1,753	)		(3,103	)		(1,192	)
Loss on extinguishment of debt		(22,771	)		—			—
Other income (expense), net		—			(151	)		400
Income before income taxes	$	6,308		$	17,848		$	13,114

As of June 30
Identifiable assets
Animal Health	$	361,376	$	329,323
Mineral Nutrition		57,460		64,719
Performance Products		23,429		21,233
Corporate		30,058		58,867
	$	472,323	$	474,142

The Animal Health segment includes all goodwill. The Animal Health segment includes advances to and investment in equity method investee of $5,140 and $4,734 as of June 30, 2014 and 2013, respectively. The Performance Products segment includes an investment in equity method investee of $479 and $275 as of June 30, 2014 and 2013, respectively. Corporate includes all cash and cash equivalents.

During our fiscal quarter ended December 31, 2013, we reorganized our reportable segments for financial reporting to better align them with how we currently review operating results for purposes of allocating resources and managing performance. We created two new reportable segments, the Animal Health segment and the Mineral Nutrition segment, and eliminated the Animal Health & Nutrition (AH&N) segment. The Animal Heath segment consists of the business units within the former AH&N segment, excluding the Mineral Nutrition business unit, which is now a separate reportable segment. In accordance with ASC 280, Segment Reporting, we have reclassified all amounts to conform to our new reportable segment presentation.