Japanese petrochemicals firm Inpex has made an unspecified investment in OCOchem, a US-based start-up that has developed technology to produce green formic acid and potassium formate from CO₂ and water “cleanly and at low cost”, using electrochemical methods powered by renewable energy.

Inpex added that it will support OCOchem’s business development with the aim of linking its technologies to its own activities. The company is promoting CO₂ reduction in upstream projects, while development of hydrogen projects and carbon recycling.