Yunseong Ko

Procurement contact · U.S. EMBASSY SEOUL · Department of State

Email	koys@state.gov
Phone	8223974613
On SAM.gov notices	20 since Jul 2025 — 20 in the last 24 months
Last listed	Jul 2026

What they buy

NAICS	Industry	Notices
561920	Convention And Trade Show Organizers	11
3361	—	7
541614	Process, Physical Distribution, And Logistics Consulting Services	1
711310	Promoters Of Performing Arts, Sports, And Similar Events With Facilities	1

PSC	Product or service	Notices
R708	SUPPORT- MANAGEMENT: PUBLIC RELATIONS	13
2310	PASSENGER MOTOR VEHICLES	7

How they restrict competition

No set-aside stated — 16
NONE — 4

What they post

Presolicitation — 15
Solicitation — 5

Recent notices

Purchase of two Midsize SUVs — Presolicitation, Jul 2026
Freedom 250 Commemorative Event Services — Presolicitation, Jun 2026
Purchase of 9-Seater Van — Presolicitation, May 2026
Freedom 250 Commemorative Event Services — Presolicitation, May 2026

Listed alongside

Tina Wong
Seoul Contract Proposals
Helen Y No

Track what State Department buys

See Yunseong's full record, every buyer at State Department and the contracts expiring next in FedSift's Agency Intelligence. Free plan available, no credit card.

Open in FedSift →

Source: SAM.gov contract notices that list this contact, including SAM's fiscal-year archives from FY2015. FedSift republishes public federal procurement data and is not affiliated with the U.S. Government. Is this you? Ask us to remove this page.