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Overhead image of Agricultural Gypsum Mine for Western Mining and Minerals, a subdivision of CertainTeed Building Products.

Western Mining and Minerals, Inc.

Producing High Purity, High Quality Products Since 1992.

Our operations consist of mines based in Arizona, Wyoming, and Iowa, where natural gypsum is mined. The gypsum is then processed and distributed from the Apex, Nevada, Cody, Wyoming, and Fort Dodge Iowa plants.


Contact Us


WMMI Order Center Tel #(888) 449-7786.

WMMI Order Center Fax #(888) 449-4329.