OSHIMA SHOKAI CO., LTD.

Oshima Shokai Co., Ltd. specializes in commercial and institutional construction services and the production of specialized chemical formulations for military infrastructure operations. The contractor delivers critical building maintenance and upgrades—including electrical system retrofits, power cable replacements, and facility modernization—at U.S. Marine Corps Air Station Iwakuni, demonstrating deep familiarity with DoD construction standards and mission-critical facility sustainment. Their technical expertise extends to boiler water treatment chemicals and industrial chemical delivery systems, ensuring corrosion control, scale prevention, and operational efficiency in naval and aviation support infrastructure. They also provide ancillary environmental services such as septic tank maintenance and waste station management, integrating facility operations with environmental compliance. The contractor maintains a consistent, long-term relationship with the Department of Defense, primarily supporting U.S. Marine Corps installations in Japan through task orders under indefinite-delivery, indefinite-quantity (IDIQ) contracts. Their work is focused on sustaining operational readiness through timely, small-to-medium scale construction interventions and chemical supply chain support tailored to military facility needs. Their primary industry focus lies in commercial and institutional building construction (NAICS 236220) and basic inorganic chemical manufacturing (NAICS 325180), positioning them as a niche provider of integrated facility and chemical solutions for defense infrastructure. They specialize in mission-critical, low-profile maintenance and chemical delivery systems that ensure uninterrupted operations in austere environments. Oshima Shokai Co., Ltd. is a Japan-based entity with no federal certifications on record. Operating from Iwakuni-shi, the company is strategically positioned to serve U.S. military installations in the Indo-Pacific region, leveraging local presence and logistical agility to deliver responsive, on-site construction and chemical support services under tight operational timelines.