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Commitments	9 Months Ended
Feb. 28, 2013
Commitments	Commitments During October 2007, we commenced construction on a project to expand our Hunter, Texas cement plant. In May 2009 we temporarily halted construction on the project because we believed that economic and market conditions made it unlikely that cement demand levels in Texas at that time would permit the new kiln to operate profitably if the project was completed as originally scheduled. We resumed construction in October 2010 and began commissioning in November 2012 and should be complete in the spring of 2013. The total capital cost of the project is expected to be between $370 million and $375 million, excluding capitalized interest. As of February 28, 2013, we have incurred $370.9 million, excluding capitalized interest of $98.1 million related to the project, of which $367.3 million has been paid.

Commitments

9 Months Ended

Feb. 28, 2013

During October 2007, we commenced construction on a project to expand our Hunter, Texas cement plant. In May 2009 we temporarily halted construction on the project because we believed that economic and market conditions made it unlikely that cement demand levels in Texas at that time would permit the new kiln to operate profitably if the project was completed as originally scheduled. We resumed construction in October 2010 and began commissioning in November 2012 and should be complete in the spring of 2013. The total capital cost of the project is expected to be between $370 million and $375 million, excluding capitalized interest. As of February 28, 2013, we have incurred $370.9 million, excluding capitalized interest of $98.1 million related to the project, of which $367.3 million has been paid.

- Definition

The entire disclosure for significant arrangements with third parties, which includes operating lease arrangements and arrangements in which the entity has agreed to expend funds to procure goods or services, or has agreed to commit resources to supply goods or services, and operating lease arrangements. Descriptions may include identification of the specific goods and services, period of time covered, minimum quantities and amounts, and cancellation rights.

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