M One Engineering & Solution Company LIMITED

M One Engineering & Solution Company LIMITED, a Thailand-based for-profit corporate entity, provides HVAC replacement and maintenance services to the U.S. federal government as a prime contractor operating in full-and-open competition with no set-aside posture. The vendor is headquartered in Nonthaburi Province, Thailand, and specializes in air-conditioning equipment installation and repair work classified under NAICS 238210 (Commercial and Institutional Building Construction) and PSC code for installation and maintenance of refrigeration and air-conditioning equipment.

The vendor's entire federal footprint consists of five purchase orders issued by the Department of State's Bureau of Overseas Building Operations (OBOT) between April 2022 and July 2026. All five awards total $543 thousand in combined potential value, with 100% of that amount already obligated. Work is performed exclusively at overseas U.S. government facilities in Thailand. Representative awards include a $144,277 firm fixed-price purchase order awarded July 2, 2026, for HVAC replacement of three units at a Thailand location (MLN 3) with completion date November 29, 2026; a $142,245 purchase order from June 10, 2025, for three-unit HVAC replacement also in Thailand; and a $127,537 purchase order from June 11, 2024, for three-unit HVAC replacement. Earlier awards from February 2023 ($89,206) and April 2022 ($39,286) covered two-unit and single-unit HVAC replacements at other Thailand facilities. Customer concentration is absolute — OBOT accounts for 100% of awards and 100% of combined potential value. Activity is flat at one award per year. One award ($144,277) reaches ultimate completion within the next twenty-four months and faces recompete exposure in that window. The vendor operates as a prime contractor with no subcontract activity in the source data and does not sit on any parent vehicles or IDIQs.