Import of HVO to ENEOS Negishi Refinery

ENEOS Corporation (hereinafter, ENEOS) is pleased to announce that it has imported HVO (Hydrotreated Vegetable Oil) to its Negishi Refinery (Yokohama City, Kanagawa Prefecture) as part of its efforts to promote biofuels and realize a decarbonized society.

ENEOS will provide the environmental value of HVO to customers using the mass balance and book and claim methods.

HVO, a co-product of SAF, is expected to significantly reduce greenhouse gas emissions over its lifecycle compared to existing diesel fuel derived from fossil fuels. Furthermore, because it has the same properties as diesel fuel and is highly compatible with existing equipment, it can be received into the existing tanks at the Negishi Refinery, mixed with existing fuels, and then shipped.

ENEOS will properly manage the environmental value of HVO on its books and provide it to customers as certificates. This allows customers to achieve decarbonization efforts by continuing to use existing fuels without using HVO itself. As a result, there is no need for new infrastructure investment specifically for HVO, and the promotion of biofuels to a wide range of customers is expected.

(Photo: HVO being delivered to the Negishi Refinery)

This large-scale import of HVO to the refinery by fuel transport ship (tanker) is the first in Japan (as of our research in June 2026).

ENEOS continues to take on challenges to achieve both the stable supply of energy and materials and the realization of a carbon-neutral society, as stated in the Group's long-term vision. As part of this, ENEOS is considering establishing an integrated system covering everything from raw material procurement to in-house production and sales, with a focus on SAF production at its Wakayama Manufacturing Plant.

We will continue to work on building a supply chain and promoting the adoption of low-carbon fuels such as SAF and HVO.

*1 HVO (Hydrotreated Vegetable Oil): A biofuel produced by hydrotreating oils and fats such as used cooking oil.

*2 Mass Balance Method: A method in which, during the process from raw material procurement to manufacturing and distribution, products derived from low-carbon raw materials are mixed with existing products in the supply chain, and their environmental value is managed on the books and allocated to products using environmental value certificates, etc.

*3 Book and Claim Method: A system in which the environmental value of products derived from low-carbon raw materials is separated from the physical fuel, managed on the books, and transferred to customers through environmental value certificates, etc.

*4 SAF (Sustainable Aviation Fuel): Sustainable aviation fuel produced from biomass, waste, etc. Compared to conventional aviation fuel, it is expected to reduce greenhouse gas emissions over its entire lifecycle.

[Contact for Inquiries] ENEOS Corporation Public Relations Department Media Relations Group [email protected]