D Nine Solution Engineering Company LIMITED

D Nine Solution Engineering Company LIMITED, a Thailand-based for-profit entity, provides replacement and repair services for air conditioning and HVAC systems at U.S. government facilities in Thailand, operating exclusively as a prime contractor on full-and-open purchase orders issued by the Department of State.

D Nine is registered in SAM.gov and headquartered at 72 Lat Phrao Road in Bangkok, Thailand. The vendor has operated continuously since August 2016 and carries no SBA set-aside designations across its federal footprint. Capability framing centers on mechanical and HVAC maintenance work — air conditioning unit replacement, chilled water pump repair, condensing-unit pipe and valve replacement, and air-handling-unit component work — all performed at U.S. Presence Abroad facilities, diplomatic consulates, and government properties throughout Thailand. Primary NAICS coding reflects air-conditioning and refrigeration equipment manufacturing and repair; PSC categories track air-conditioning equipment, refrigeration and air-conditioning maintenance and repair, and specialized equipment installation and maintenance.

Customer concentration is absolute: both the Department of State Bureau of Overseas Building Operations and the Bureau of East Asian and Pacific Affairs account for 100% of awards in the source. The Bureau of Overseas Building Operations dominates by dollar value, anchoring nine awards for $355 thousand in combined potential value, while the Bureau of East Asian and Pacific Affairs holds seven awards for $133 thousand. Representative work includes a $25,891 firm fixed-price purchase order from March 2026 for server room air conditioning unit replacement at a GPF (Government Furnished Property) facility, issued by the Bureau of East Asian and Pacific Affairs with completion scheduled for April 2026; a $25,365 purchase order from September 2025 for server room air-conditioning replacement at GPF P1235, issued by the Bureau of Overseas Building Operations; and a $14,793 purchase order from April 2025 for chilled water pump repair at a U.S. Presence Abroad facility. Older work includes a $41,640 air-conditioning replacement at RRM Apartments (September 2021) and a $35,173 air-handling-unit replacement (December 2022), both under ICASS (International Cooperative Administrative Support Services) funding.

Total awards across the source data span 16 purchase orders from 2016 to March 2026, with combined potential value of $488 thousand and combined obligated dollars of $457 thousand (94% of ceiling). Activity is sparse and irregular — one award in 2020, one in 2021, three in 2022, a two-year gap, then two awards in 2025 and one in 2026. No subcontract footprint is present; the vendor operates entirely as a prime. No parent vehicles, GWACs, BPAs, or IDIQs appear in the award history; all work flows through direct purchase orders.