The brief

Analyst view

• OPUS SCM replaces up to 40% of Portland cement; 70% CO₂ reduction vs Portland.
• Raised $206.5M Series B (Feb–July 2025); 240 kt/yr facility in Texas shipping Q2 2026.
• Developing OPUS Zero for 100% cement replacement.

Technical approach

As reported

Rock-melting process

Heat silicate rock into glass

Melts silicate-containing rock at high temperature to form glassy cementitious material, avoiding limestone roasting.

Cement replacement

Up to 40% of Portland cement

OPUS SCM can replace 40% of Portland cement in concrete without losing strength.

Scalable production

First commercial plant in Texas

Cleburne plant: 240 kt/year; lower capital cost than traditional cement plants.