Brimstone Rock Refinery
Provider 
Founded 2019
Sells To Enterprise
Pricing Model Transactional
Ownership —

Patented process for co-producing cement and other industrial materials from one rock feedstock.
Brimstone Rock Refinery is a patented co-production process that refines a single, globally abundant rock into cement, supplementary cementitious materials, alumina, steel, aluminum, magnesium, titanium, and other critical minerals. The process uses shared equipment and feedstock to make multiple materials in an integrated system.
The first plant is designed to produce cement, supplementary cementitious materials, and smelter-grade alumina, with later facilities planned to expand into additional industrial materials.
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| Attribute | Brimstone Rock Refinery | Opus SCM | Reversa | Sublime Cement | |
|---|---|---|---|---|---|
| Provider | |||||
| Founded | 2019 | 2012 | 2020 | 2020 | |
| Sells To | Enterprise | Enterprise | Enterprise | Enterprise, Government | |
| Pricing Model | Transactional | Recurring, Transactional | Recurring | Recurring | |
| Ownership | — | Private equity-backed, Venture-backed | Venture-backed | Venture-backed |
Provider 
Founded 2019
Sells To Enterprise
Pricing Model Transactional
Ownership —
Provider 
Founded 2012
Sells To Enterprise
Pricing Model Recurring, Transactional
Ownership Private equity-backed, Venture-backed
Provider 
Founded 2020
Sells To Enterprise
Pricing Model Recurring
Ownership Venture-backed
Provider 
Founded 2020
Sells To Enterprise, Government
Pricing Model Recurring
Ownership Venture-backed


Brimstone Rock Refinery co-produces decarbonized ordinary portland cement and supplementary cementitious materials from common rock.

Brimstone Rock Refinery co-produces decarbonized ordinary portland cement and supplementary cementitious materials from common rock.