
U.S. startup Equatic plans to build the world’s largest ocean carbon removal facility in Singapore. (Photo: Equatic)
The world’s largest ocean-based carbon removal facility is scheduled to begin construction in late September at Tuas Port, Singapore. U.S. startup Equatic, which provides the seawater electrolysis technology, recently closed a Series A funding round backed by Temasek Trust, underscoring investor confidence.
Yet some environmental experts remain cautious, warning that the technology’s impact on marine ecosystems is uncertain and that carbon removal solutions risk reinforcing dependence on fossil fuels.
Boosting ocean carbon uptake while producing clean energy
The pilot project, a collaboration between Singapore’s Public Utilities Board (PUB) and Equatic, uses chemical reactions to enhance the ocean’s capacity to absorb carbon dioxide. By combining CO₂ with minerals such as calcium and magnesium found in seawater, the process mimics shell formation and locks carbon away permanently.





