Ryuseki Corporation

Ryuseki Corporation is a Japan-based energy and logistics provider headquartered in Okinawa that serves as a critical infrastructure partner for the U.S. Department of Defense in the Indo-Pacific region. The company specializes in fuel distribution and maritime support services to military installations, vessels, and aircraft throughout Japan, leveraging its strategic geographic positioning to maintain essential energy supply chains supporting American defense operations. Through its parent company structure and subsidiary Okinawa Marine Service Co., Ltd., Ryuseki Corporation has established itself as a key contractor for sustaining U.S. military logistics capabilities and operational readiness across multiple military installations in the region.

Ryuseki Corporation has provided extensive fuel distribution services to the Department of Defense through its contracts with the Defense Logistics Agency Energy, delivering a diverse portfolio of petroleum products including burner fuel oil, automotive gasoline, aviation turbine fuel, marine gas oil, and liquefied petroleum gas to multiple U.S. military installations across Japan. The company has received numerous delivery orders and purchase orders from DLA Energy, with individual awards ranging from under $1,000 to over $373,000, and has maintained consistent contract performance without set-aside designations, indicating all awards were made through open competition. Additionally, Ryuseki's subsidiary Okinawa Marine Service Co., Ltd., a minority-owned business, has provided specialized maritime logistics services including tugboat operations, pilotage services, water taxi support, barge transportation, and crane services to the Navy Installations Command and Military Sealift Command, with contract values ranging from approximately $2,600 to $335,000 for individual task orders. The subsidiary has supported critical marine operations such as the Resolute Dragon 2025 exercise and routine vessel movement support at strategic locations including White Beach and Tengan Pier in Okinawa. All contracts have been awarded without set-aside designations under open competition, with performance taking place entirely in Japan to support U.S. military operations in the region.

Ryuseki Corporation holds a single-award Indefinite Delivery Contract with the Defense Logistics Agency Energy valued at $92.8 million with a ceiling extending through June 30, 2029, representing the company's primary contractual vehicle for ongoing fuel distribution operations. This comprehensive IDC covers the delivery of approximately 2.8 million gallons of diverse petroleum products including aviation turbine fuel, automotive gasoline, burner fuel oil, marine gas oil, and liquefied petroleum gas to multiple U.S. military installations across Japan, including major facilities such as Yokota Air Base, Kadena Air Base, Camp Courtney, Camp Kinser, and various Navy and Army installations. The contract utilizes fixed pricing with economic price adjustments based on Platts Japan escalators, with price adjustments occurring on the 1st and 3rd Monday of each month using the previous five-day average of specified petroleum indices, ensuring cost stability while accommodating market fluctuations in fuel commodities. Since the contract's award on September 13, 2024, DLA Energy has issued numerous delivery orders to Ryuseki Corporation with individual task orders ranging from under $350 to over $373,000 in ceiling value, demonstrating the strategic operational importance of maintaining reliable fuel supply chains for Department of Defense installations throughout the Indo-Pacific region. All delivery orders have been executed at the Japan place of performance without set-aside designations, with the parent IDC solicited through a requirements-type vehicle with continuous solicitation authority. Ryuseki Corporation's performance as the sole-source provider under this vehicle reflects its established capability to reliably distribute petroleum products to support U.S. military logistics and operational readiness at forward-deployed installations in Japan.