Zero-carbon building materials for the next generation of construction.
Starstone is developing zero-carbon cement and concrete using biological biomineralization processes, replacing traditional quarry-and-kiln production with bacteria-based fermentation. Founded in 2023, the company targets the $4B ton/year global cement market to reduce supply chain CO2 emissions by over 50%. Its biogenic cement replacement is designed to meet cost parity with traditional cement at scale.
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