The U.S. imports lots of alumina, which is a key component of aluminum. Brimstone says it can produce the ingredient ...
Brimstone finalizes up-to $189M federal award for efficient and sustainable Rock Refinery™ co-producing portland cement, a second concrete ingredient, and alumina from U.S.-sourced rocks ...
Aluminum's high strength-to-weight ratio and versatility ... investment to build a first-of-its-kind plant to deliver cement, SCM, and alumina.
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