Climate-tech startup CarbonStrong raises Rs 12.5 crore from IAN Angel Fund, Zerodha's Rainmatter; aims for 100,000-tonne annual capacity in 2 years

CarbonStrong, founded in 2022 by Harsh Jain and Vikramaditya Singh, is pioneering low-carbon binders by upcycling industrial waste, replacing up to 50% of cement in concrete. The recent funding of Rs 12.5 crore will facilitate the establishment of its first production facility and expand its team.¹

The startup's innovative binder is created by processing industrial waste from sectors like coal and steel into high-performance cementitious materials. This approach not only reduces costs but also significantly lowers the carbon footprint of concrete production, maintaining performance without altering existing plants or processes.

Harsh Jain stated, “India will build most of its future in the next 25-30 years. We want every ton of that concrete to be stronger, cost-efficient, and lower in carbon footprint. This investment helps us take our now-proven technology to industrial scale.”⁶

CarbonStrong has successfully conducted several customer trials and is now focused on converting these into long-term supply relationships with ready-mix concrete companies, builders, and contractors. The startup is also targeting precast concrete and paver block manufacturers while expanding the range of industrial wastes utilized for cement substitutes, including materials from steel slag, copper slag, and mine tailings.²⁴⁵⁷⁸

With a goal of achieving an annual capacity of 100,000 tonnes within two years, CarbonStrong is poised to make a significant impact in the construction industry by promoting sustainable practices.