Japan shipping company backs ocean CO2 removal tech from US

  • Gas
  • March 26, 2025

Japan-based global shipping business Mitsui OSK Lines (MOL) has signed a deal to purchase 30,000 carbon removal credits from direct ocean capture (DOC) technology developed by carbon removal specialist Captura, based in California.

MOL and Captura have also signed a Memorandum of Understanding to accelerate Captura’s DOC plant developments. As part of this, MOL has invested in Captura to support its technologies and technology development.

DOC applies innovations in electrochemistry with the ocean as a resource. The process extracts a measurable stream of CO2 from seawater, in the process creating further capacity for the ocean to absorb more CO2 from the atmosphere.

CO2 is 150 times more concentrated volumetrically in the ocean compared with air. This provides a scalable and efficient way to remove atmospheric CO2, according to Captura.

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