Un Song Yim

Unsong Yim serves as a key procurement lead within the 0411 Aq Hq Contract Augmented unit of the Department of the Army, responsible for managing complex facility sustainment and infrastructure modernization contracts critical to U.S. Army garrison operations, particularly at overseas installations such as USAG Humphreys and USFK. Their role centers on ensuring mission-critical readiness through the acquisition of construction, maintenance, and technical support services that uphold the integrity of military facilities, utilities, and communication systems. Yim routinely handles task orders and indefinite-delivery/indefinite-quantity (IDIQ) contracts under the Army’s Engineering and Construction portfolio, with a focus on rapid-response and long-term infrastructure resilience. Yim maintains consistent working relationships with a select group of international and domestic contractors, including GLOBAL SYSTEMIZED INDUSTRY, 09CLEAN CO., LTD, KOREA CONTAINER POOL CO., LTD, NOKHWACHANGJO, and GLOBAL COMPANY ALLIANCE CO., LTD. These partnerships reflect a preference for established vendors with proven experience in military-grade facility operations, modular construction, and logistics support in austere environments. The contracting patterns suggest a reliance on pre-vetted, performance-based suppliers capable of delivering integrated solutions across multiple technical domains, often under time-sensitive operational constraints. There is no preference for socioeconomic set-asides, with 100% of awards issued under full and open competition. This reflects a procurement strategy prioritizing technical capability, operational readiness, and global supply chain reliability over socioeconomic targeting, consistent with the mission-critical nature of overseas infrastructure support. Yim’s procurement portfolio is evenly distributed across five core NAICS categories: 238390 (other building finishing), 238120 (structural steel and precast concrete), 334220 (radio and telecommunications equipment manufacturing), 541511 (custom computer programming), and 336211 (motor vehicle body manufacturing). This diversified focus indicates deep expertise in integrated facility systems—spanning physical construction, embedded communications infrastructure, digital command support, and vehicle modification—enabling holistic sustainment of military installations.