Brimstone was founded in 2019 to solve a hard problem: how to make the materials the world relies on—cement, steel, aluminum, and other critical minerals—more efficiently, sustainably, and at lower cost.

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For decades, these materials have been produced separately, each requiring its own feedstock, factory, and process. But Brimstone developed a breakthrough solution: co-production. This proven industrial strategy uses a single feedstock and shared equipment to manufacture multiple products at once. It lowers costs per product, eliminates waste, and multiplies revenue.

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Co-production has already turned oil refining into the largest industrial process on Earth. It transformed fertilizer. It's now standard across metals production. Cement, steel, and aluminum are among the last major industries yet to benefit—until now.​

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The Brimstone Rock Refinery® is a patented co-production process that refines a single, globally abundant rock into cement, supplementary cementitious materials (SCM), alumina, steel, aluminum, magnesium, titanium, and more. For the first time ever, these essential materials can be produced together, through a single integrated process—transforming global supply chains and unlocking a new era of material abundance.

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Brimstone recently completed successful pilot work in Oakland, CA, and is now advancing toward our manufacturing facility in Reno, Nevada.