Kitanihon-Kako Co., LTD.

Kitanihon-Kako Co., LTD., a Japanese for-profit corporate entity headquartered in Hachinohe, Aomori, Japan, delivers water treatment chemicals, boiler and HVAC maintenance services, and industrial parts supply to Pacific Air Forces as a prime contractor, with 100% of recent awards routed through the Department of the Air Force and no subcontract footprint. The vendor operates exclusively on full-and-open competition with no set-aside designations across its federal portfolio.

Kitanihon-Kako's capability portfolio centers on infrastructure and utility support services for U.S. military installations in Japan. The vendor supplies water treatment chemicals (primary NAICS 424690 — Other Chemical and Allied Products Merchant Wholesalers, accounting for 16 of 33 awards), performs boiler and steam-system maintenance and inspection, delivers HVAC parts and tools, and provides ongoing facility support. Representative work includes a $2.35 million blanket purchase agreement with Pacific Air Forces through July 2026 for the delivery and injection of water treatment chemicals at Misawa Air Base, a $539,013 purchase order awarded September 2026 for hardened aircraft shelter and North Area boiler maintenance and inspection services at Misawa Air Base through August 2029, a $127,304 purchase order for water treatment services at Misawa cooling towers awarded October 2021, and a $95,524 boiler performance inspection service purchase order awarded June 2024. Parts and tools orders for boiler plants and HVAC facilities at Misawa round out the current active portfolio.

Customer concentration is absolute: Pacific Air Forces holds 30 of 33 awards and $4.2 million of the $4.2 million combined potential value. The Department of the Air Force Defense Finance and Accounting Service and the broader Department of the Air Force account for three awards totaling $66 thousand. All work is performed at Misawa Air Base, Japan. Activity has remained sparse and episodic — two awards in 2021 and 2022, one each in 2023 and 2024, and one in 2026 — with combined potential value of $4.2 million and combined dollars obligated at $1.4 million (32% of potential). The blanket purchase agreement carries a July 2026 completion date; the most recent purchase order (September 2026) runs through August 2029, representing the nearest recompete exposure within the vendor's active set.