Cosmo Energy Group and Iwatani to advance hydrogen business at Chiba refinery

October 15, 2026 |

In the UK, Digital Refining reported that Cosmo Energy Holdings and Iwatani Corporation announced that they have made the final investment decision to jointly advance their hydrogen business centered on the restoration of an existing hydrogen production unit and the construction of a new liquefied hydrogen plant at Cosmo Oil Co., Ltd.’s Chiba Refinery in Ichihara City, in Japan.

The project involves Cosmo Oil restoring an idle hydrogen production unit on the premises of its Chiba Refinery and using hydrogen produced in the petroleum refining process, supplying a portion of it to the Iwatani Group. In turn, the Iwatani Group will liquefy the supplied hydrogen at a newly constructed liquefied hydrogen plant on the same premises and deliver it to domestic customers by tanker trucks, according to the report.

Through this initiative, the Cosmo Energy Group will produce and procure hydrogen required for refining petroleum products, further strengthening stable refinery operations and its foundation for reliable product supply. In addition, the Iwatani Group will establish its fourth liquefied hydrogen plant in Japan, helping ensure a stable hydrogen supply and meet rising demand, the report added.

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Category: Hydrogen

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