AAR Sumisho Aviation Services LLC is a 50/50 joint venture between AAR Supply Chain, Inc., a wholly-owned subsidiary of AAR CORP. (NYSE: AIR), and ASAS Japan Inc., a wholly-owned subsidiary of Sumitomo Corporation. The Chicago area based joint venture was established in 2020 to provide comprehensive parts supply and services, including the distribution of OEM parts, to Japanese defense customers, and to distribute parts globally on behalf of Japanese OEMs. ASAS combines AAR’s global network and competitive expertise in aviation supply chain and parts distribution with Sumitomo’s logistics specialization and large footprint in the Japanese market.