Seojin Construction Co.,Ltd

Seojin Construction Co., Ltd., a South Korea-based construction firm, operates exclusively as a prime contractor on U.S. Army facility maintenance and repair delivery orders at U.S. Forces Korea installations, with all 60 awards issued without set-aside designation through open federal competition. The vendor holds a $245 million single-award IDIQ contract with the Department of the Army Installation Management Command's Pacific Region (awarded October 5, 2023, extending through October 2028) and a $20 million multiple-award IDIQ with the same command at U.S. Army Garrison Daegu (awarded April 5, 2023, extending through April 2029), both funded through Operation and Maintenance, Army appropriations and the Logistics Civil Augmentation Program.

Seojin Construction's work centers on commercial and institutional building construction and facility maintenance (NAICS 236220, PSC D307) across U.S. military installations throughout South Korea, including Camp Walker, Camp Carroll, Camp Henry, Camp Humphreys, Busan Storage Facility, and U.S. Army Garrison Daegu. The vendor performs direct facility stewardship services including electrical repairs, HVAC maintenance, utility system replacements, roof repairs, water and sewer line replacements, LED lighting installations, perimeter security enhancements, fire suppression system installations, parking lot rehabilitation, and emergency damage remediation. Representative work includes a $450,597.64 delivery order for fire hydrant replacement at Camp Tango (completion September 30, 2025), a $687,610.47 delivery order for building repairs at a Korean Region facility (completion April 15, 2025), a $598,421.21 delivery order for storm drainage system repair at Camp Carroll (completion May 6, 2026), and a $926,915.16 delivery order for general "K work" (non-work-plan flexible capacity) issued by the Pacific Region (completion May 1, 2025). All work is performed as firm fixed-price contracts with place of performance in South Korea, and Seojin Construction maintains no documented subcontractor relationships across its portfolio.

Customer concentration is absolute: 100% of awards split between the Department of the Army Installation Management Command's Pacific Region (54 awards, $762.6 million combined potential value) and Korean Region (6 awards, $247.3 million combined potential value). The vendor's award activity grew sharply from five awards in 2023 to 32 in 2024, then moderated to 13 in 2025 and 10 in 2026 year-to-date as of October 15, 2026. Combined potential value across all 60 awards totals $1.01 billion; however, only $9.9 million (1% of potential value) has been obligated to date, reflecting that most awards carry ceiling values representing maximum procurement authority rather than committed spend. Task orders flow primarily through the General Construction by OMA parent vehicle (43 task orders, $8.3 million combined potential value), with smaller volumes on the Daegu-specific IDIQ (9 task orders, $452 thousand) and the General Construction Repair and Upgrade of USFK Facilities IDIQ (3 task orders, $1.1 million). Only five awards (combined potential value $562 thousand) face ultimate completion within the next twenty-four months, indicating minimal near-term recompete exposure from this pool, though the underlying IDIQs themselves extend through 2028–2029.