SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2011

Estimated Useful Lives of Assets

Property, plant and equipment are stated at cost. Depreciation and amortization, which include the depreciation of assets recorded under capital leases, are computed using the straight-line method over the estimated useful lives of the assets as follows:

Building and improvements	4 to 40 years
Machinery and equipment	3 to 30 years
Containers	2 to 20 years
Transportation equipment	3 to 7 years
Office equipment and furniture	2 to 15 years
Software	1 to 7 year