Temasek Trust’s Catalytic Capital for Climate and Health (C3H) has led a US$11.6 million Series A funding round for Equatic, a company developing seawater electrolysis technology that removes atmospheric CO₂ while producing carbon-negative hydrogen. Singapore-based Kibo Invest co-led the round, with participation from Stacey Nicholas, the Aga Khan Foundation, Adam McKay, and Lee Cooper.
Equatic’s process speeds up the ocean’s natural carbon absorption, storing CO₂ permanently while generating clean hydrogen in one scalable system. Proven in pilot projects in Los Angeles and Singapore, the technology meets ISO-14064 monitoring and verification standards and has been validated by Isometric and Puro.earth registries.
James Marshall, CEO of Kibo Invest.
The funds will support the design of Equatic’s first 100-kilotonne carbon removal facility, commercialisation, manufacturing scale-up, and further R&D. The company has already attracted strong offtake interest from global partners.
C3H said the investment aligns with its mission to back bold, scalable climate solutions. Kibo Invest called Equatic “a unique opportunity” to address both decarbonisation and clean energy needs.
Gaurav N. Sant, Founder and CTO of Equatic.
Founded in 2021 after winning Temasek Foundation’s The Liveability Challenge, Equatic has since piloted its technology with Singapore’s national water agency PUB and was a 2024 Earthshot Prize finalist. Founder and CTO Gaurav N. Sant said the financing will help deliver cost-effective, durable carbon removal at scale. The deal reflects growing global interest in science-driven solutions that combine environmental impact with commercial viability. 
