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GypCarb carbon-negative calcium carbonate

GypCarb

Engineered carbon-negative mineral additive for cement & concrete

We turn CO₂ into industry's best mineral additive, deployable today

The structural decline of conventional SCMs, combined with slow-to-qualify alternative technologies, is tightening the pathway to meaningful concrete decarbonisation. Producers need solutions that can deliver measurable performance and carbon reduction within existing plants — without multi-year approval cycles or infrastructure overhaul.

GypCarb product
Our solution

CO₂ transformed into a performance mineral

Engineered vaterite-based calcium carbonate. With 44% CO₂ permanently locked in by mass, it is the only carbon-negative synthetic limestone Designed as a drop-in, standards-compliant material for cement and concrete.

The mineral acts as a high-reactivity additive enhancing performance without changes to current production processes and reducing cost.

Lower cost lower carbon with GypCarb

Stronger concrete. Lower cost. Lower carbon

GypCarb drops into existing concrete mixes to improve performance and reduce cement, carbon, and cost without changing plants, standards, or workflows.

Our customers

Engineered to decarbonise concrete at scale

Cement producers

Ready-mix concrete plants

Precast concrete manufacturers

General contractors

Our advantage

How producers win with our concrete solution

Enhances strength development & durability

while reducing cement content

True drop-in material

no changes to plants, batching systems, or production workflows

Standards-aligned

designed to fit within existing concrete specifications and approval pathways as a limestone material

Permanent carbon storage

CO₂ is mineralised and locked into the concrete matrix

GypCarb advantage

Get started today

We are now working with producers to integrate the material into day-to-day concrete production and scale deployment globally.

Iterative development

Prototype development & small-scale lab trials with selected industry partners.

2023