Chiyoda : Awarded the FEED Contract for Installing SAF Production Facilities in Taiyo Oil Co., Ltd. Okinawa Operations

Chiyoda Global Headquarters Minato Mirai Grand Central Tower 4-6-2, Minatomirai, Nishi-ku,

Yokohama 220-8765, Japan https://www.chiyodacorp.com/en

Oct 28, 2025

Chiyoda Corporation (Chiyoda) is pleased to announce that it has been awarded the Front End Engineering Design (FEED) contract for installing SAF*1production facilities in Taiyo Oil Co., Ltd. (Taiyo Oil) Okinawa Operations.

Taiyo Oil is aiming to supply 200,000 KL of SAF and Renewable Diesel (RD) annually using Ethanol to Jet Technology*2on the premises of Taiyo Oil's Okinawa Operations, contributing to the Japanese government's FY2030 SAF supply target, equivalent to "at least 5% of GHG emissions of jet fuel produced and supplied in Japan in FY2019". Taiyo Oil's SAF production project has been selected as a subsidized project under the Ministry of Economy, Trade and Industry's 'Subsidy for Promotion of Transition to a Decarbonized, Growth-Oriented Economic Structure (Sustainable Aviation Fuel (SAF) Manufacturing and Supply Chain Development Support Project)'.

Taiyo Oil Okinawa Operations (Photo by Taiyo Oil)

Chiyoda will apply its technical capabilities and 70 year experience in oil and gas plant engineering to conduct the FEED for implementing the facilities in Taiyo Oil Okinawa Operations and the decarbonization of aviation fuel.

As comprehensive engineering company, Chiyoda is actively engaged in the development of Biofuel production technology towards the realization of a carbon neutral society. Through these initiatives, Chiyoda is engaged in EPC projects worldwide and the development of technologies to realize a carbon neutral society and will continue contributing to the development of sustainable society under our purpose of 'Enriching Society through Engineering Value'.

*1 Sustainable Aviation Fuel

*2 Producing SAF from ethanol. The SAF is certified as ASTM Standard D7566 Annex 5.

Reference:

Taiyo Oil press release dated February 21, 2025

URL: Okinawa SAF Production Project Selected for METI's "Sustainable Aviation Fuel (SAF) Manufacturing and Supply Chain Development Support Project" | Taiyo Oil

For further information, please contact:

Chiyoda Corporation

IR, PR & Sustainability Advanced Section Email: [email protected]

URL: https://www.chiyodacorp.com/en/contact/index.php