Yuil Eng. & Const. Co.,Ltd

Yuil Eng. & Const. Co., Ltd, a Seoul-based South Korean construction and facilities maintenance contractor, operates as a prime contractor delivering general construction, repair, design-build, and infrastructure upgrade services to U.S. military installations across South Korea, competing on full-and-open basis without set-aside protections. The company, registered in the System for Award Management since October 2001, holds a portfolio of $329.72 billion in combined potential value across 624 prime awards spanning general facilities repair, HVAC system replacement, utilities infrastructure, roof and pavement repairs, security installations, and design-build construction projects.

Yuil's customer base concentrates heavily on U.S. Forces Korea operations. The top five funding agencies account for 89% of recent awards: the U.S. Army Installation Management Command Pacific Region leads with 246 awards worth $2.21 billion combined potential value, followed by the Army Installation Management Command Korean Region (150 awards, $588.2 million), the U.S. Army Corps of Engineers Far East District (68 awards, $244.09 billion in combined potential value — the largest single dollar concentration), Pacific Air Forces (77 awards, $24.5 million), and Army Pacific Command (14 awards, $4.7 million). The rankings by award count and potential value diverge sharply at the top: while IMCOM Pacific leads in volume, ENDIST Far East anchors the dollar value through large design-build and infrastructure contracts. Representative prime work includes a $4.47 million design-build utilities replacement at the U.S. Embassy Seoul (Department of State, October 2025), a $5.41 million delivery order for elevator replacement at USAG Humphreys (ENDIST Far East, August 2024), a $3.31 million HVAC equipment and piping replacement at USAG Humphreys (August 2025), and a $1.72 million water distribution system repair (June 2025). A $4.15 million definitive contract for heating and cooling system repairs at Osan Air Base (Pacific Air Forces, November 2023) and a $3.27 million facility repair and oily sand treatment contract at Kunsan Air Base (Defense Logistics Agency Engineering Far East, May 2025) round out the major work profile.

Yuil holds five named indefinite delivery vehicles with aggregate capacity exceeding $944 million. The $400 million U.S. Army Corps of Engineers Far East District design-build MATOC (awarded June 2024, effective through December 2030) anchors the portfolio and has generated three task orders totaling $7.37 million. The $245 million Army Installation Management Command Pacific Region single-award IDC for general construction repair and upgrade (awarded October 2023, through October 2028) has executed dozens of delivery orders for roof repairs, water systems, security installations, and facility renovations. A matching $245 million Army Installation Management Command contract (October 2023, through October 2028) covers the same scope across the Korean Region. The $45 million Army design-build MATOC for Korea-wide services (September 2023, through September 2025) has supported fire-rated door installation and elevator replacement projects. A newer $9.5 million Army Installation Management Command Pacific Region single-award IDC (April 2025, through April 2030) covers asphalt concrete pavement and general construction services at USAG Daegu, with one task order issued to date. Task orders issued under these vehicles are uniformly firm fixed price with no set-asides and individual values ranging from $3,000 to $5.4 million, typically targeting completion within six to thirty months of award.

Activity has remained stable across the review period: 11 awards in 2022, 24 in 2023, 19 in 2024, 19 in 2025, and one in 2026. Eight awards carrying combined potential value of $20.8 million face ultimate completion within the next twenty-four months, representing near-term recompete exposure. Yuil's work is performed entirely in South Korea and does not carry sub-award activity — the vendor operates as a 100% prime contractor. The award portfolio clusters heavily into Commercial and Institutional Building Construction (NAICS 236220, 401 awards) and Industrial Building Construction (NAICS 236210, 152 awards), with PSC concentration in repair or alteration of office buildings (166 awards) and construction of office buildings (100 awards). The vendor serves solely as a prime; no sub-award footprint is present in the source data.