Temasek Trust’s C3H Invests $11.6M In Equatic’s Expansion

Temasek Trust’s Catalytic Capital for Climate and Health (C3H) has led a US$11.6 million Series A funding round in Equatic, a groundbreaking company focused on seawater electrolysis technology to remove atmospheric carbon dioxide and produce carbon-negative hydrogen. Singapore-based Kibo Invest co-led the round, with support from investors like  Stacey Nicholas, the Aga Khan Foundation, Adam McKay, Lee Cooper and Grantham Neglected Climate Opportunities. The new funds will help scale up and commercialize Equatic’s innovative process, which combines carbon removal and clean energy production into a single, scalable system.

Equatic’s technology boosts the ocean’s natural ability to absorb carbon dioxide, enabling long-term storage of CO₂ while producing hydrogen. The process has been validated through pilot projects in Los Angeles and Singapore, attracting significant interest from potential buyers. The company is among the few marine-based ventures to offer high-quality, registry-verified carbon removal credits. Its work follows ISO-14064 standards for monitoring, reporting, and verification and has been validated by top registries like Isometric and Puro.earth.

The Series A funding will mainly support the engineering and development of Equatic’s first commercial-scale facility, designed to remove 100 kilotonnes of carbon dioxide. Additionally, the funds will support commercialization efforts, expand manufacturing capabilities, and drive further technological improvements. This large-scale facility marks an important milestone for the company, backed by a global group of investors and strong interest from partners who need reliable and verifiable carbon removal solutions.

Ryan Tan, Head of C3H, stated that Equatic’s efforts are a strong example of the innovative and scalable solutions needed to fight climate change. He noted that the company’s combined approach to effective carbon removal and green hydrogen production fits well with C3H’s mission to back promising climate technologies. “We are pleased to support Equatic’s goal to advance solutions that provide permanent, effective carbon removal along with green hydrogen production,” Tan said.

James Marshall, CEO of Kibo Invest, shared similar views, pointing out Equatic’s dual impact on two major environmental issues: decarbonization and clean energy generation. “Equatic represents an exciting chance to scale deep-tech innovation that addresses two key needs: decarbonization and clean energy,” Marshall remarked.

Equatic started its journey in 2021 when it won Temasek Foundation’s The Liveability Challenge, receiving S$1 million in funding. The company then tested its seawater electrolysis technology in partnership with Singapore’s national water agency, PUB. These early steps laid the foundation for its commercial goals and established its reputation as a climate-tech innovator. In 2024, Equatic was named a finalist for The Earthshot Prize, further confirming its potential for global impact.

Founder and CTO Gaurav N. Sant expressed thanks to the company’s investors and partners, highlighting that this funding will help deliver cost-effective and scalable carbon removal solutions. “We are very thankful to all our investors and partners. This funding pushes Equatic’s mission to provide cost-effective and lasting carbon removal at scale,” Sant said.

Support from C3H highlights a growing momentum for scalable, science-based climate solutions. By uniting public, private, and philanthropic money, C3H aims to speed up the adoption of innovations that can permanently reduce greenhouse gas emissions. Equatic’s model, which combines carbon sequestration with clean energy generation, offers a strong approach to achieving a low-carbon future.

With the funding secured, Equatic is ready to move from proven pilot projects to large-scale deployment. The company’s first 100-kilotonne facility will be a crucial test of its technology’s commercial viability and environmental effect. If successful, it could enable rapid replication globally, leading to significant reductions in atmospheric carbon levels while promoting the growth of green hydrogen as a clean energy source.

By merging scientific rigor with a viable business model, Equatic aims to lead in climate technology solutions. Its success could not only aid the low-carbon transition but also serve as a model for how innovation, supported by thoughtful investment, can drive lasting environmental change. The latest investment from Temasek Trust’s C3H and its partners marks a significant step toward that goal, demonstrating strong confidence in the company’s ability to achieve results on a global scale.