Seojin Construction Co.,Ltd

Seojin Construction Co., Ltd., a South Korea-based for-profit construction firm, operates as a prime contractor exclusively (100% of recent awards) providing facility maintenance, repair, and infrastructure upgrade services to the U.S. Army Installation Management Command at military installations throughout South Korea. The company holds no SBA set-aside certifications and competes in the open market across all awards.

Seojin's customer base is geographically concentrated and entirely within the Department of Defense. The Army Installation Management Command's Pacific Region accounts for 45 awards (44 in delivery order form plus one IDIQ vehicle) with $762 million in combined potential value, while the Korean Region holds 6 awards totaling $247.3 million. This 100% concentration with two customer entities within IMCOM reflects Seojin's specialized positioning as a primary construction and facility stewardship provider for U.S. Forces Korea installations. The two rankings align completely — both volume and dollar value flow from the same two regional commands.

Seojin's primary vehicle position is the General Construction by Operation and Maintenance, Army IDIQ, under which it has executed 36 task orders carrying $7.7 million in combined potential value. The vendor also holds a $245 million single-award IDIQ contract for General Construction Repair and Upgrade of USFK Facilities awarded October 5, 2023 and extending through October 4, 2028, from which 28 documented delivery orders have been issued spanning facility repairs, utility replacements, infrastructure upgrades, and emergency remediation. A second $20 million multiple-award IDIQ for Minor General Building Repair and Construction at U.S. Army Garrison Daegu, awarded April 5, 2023 and running through April 4, 2029, feeds additional task orders capped at $250 thousand each. Recent representative delivery orders include a $598,421.21 storm drainage system repair at Camp Carroll (September 8, 2025), a $450,597.64 fire hydrant replacement at Camp Tango (July 23, 2024), a $523,242.63 building repair at Camp Humphreys (July 2, 2024), and a $687,610.47 general building repair (July 5, 2024). All task orders are firm fixed-price awards with no set-aside designation.

Activity has grown sharply — from five awards in 2023 to 32 in 2024 — then moderated to 13 in 2025 with one award year-to-date in 2026. Combined potential value across all 51 awards stands at approximately $1.01 billion, though only $9.3 million (1%) has been obligated to date, reflecting the typical IDIQ mechanics where ceiling values dwarf near-term cash commitment. Work is performed exclusively in South Korea at major installations including Camp Walker, Camp Carroll, Camp Henry, Camp Humphreys, Busan Storage Facility, and U.S. Army Garrison Daegu, funded through Operation and Maintenance, Army appropriations and the Logistics Civil Augmentation Program.

Seojin's capability portfolio is narrowly defined by NAICS code 236220 (Commercial and Institutional Building Construction), with 51 awards across that category and PSC code B908 (Maintenance of Other Administrative Facilities and Service Buildings) representing 49 of the awards. Work spans routine facility stewardship — electrical repairs, HVAC maintenance, roof replacements, utility line upgrades, bathroom and laundry repairs, LED lighting conversion, pool deck refinishing, security gate and fence installation, and emergency damage restoration — all at scales under $2 million per delivery order. The company carries no documented subcontractor relationships across its prime footprint and serves entirely as a direct performer. Seojin has been registered in the System for Award Management since 2011 and operates with no parent company or subsidiary relationships noted in the source material.