Machine-readable JSON: https://agents.comepass.xyz/api/v1/kr-suppliers/3018158739

Seongyun Construction co., LTD. (성윤종합건설 주식회사)

Business Registration No.: 3018158739 | Unlisted Corporate Supplier

English Name (KONEPS / DART)Seongyun Construction co., LTD.
Korean Legal Name성윤종합건설 주식회사
Business Registration No.3018158739
Established Date2002-02-05
Region충청북도 청주시
Address (KO)충청북도 청주시 서원구 가장로 371, 101호 (장암동)
HomepageN/A
Manufacturer Classificationsupplier (공급)
Reported Employees13 (Self-reported employee count at Korea ON-Line E-Procurement System (KONEPS) registration; may differ from National Pension Service (L1) subscriber counts.)
source_urlhttps://www.g2b.go.kr
verified_at2026-11-02T04:36:11.608Z

Public procurement (last 12 months)

Contracts first signed in the last 12 months.

The 12-month window is by original contract signing date: it covers contracts first signed in the period, and excludes amendments registered in the period to contracts signed earlier. Amounts are in KRW from Korea's Public Procurement Service (KONEPS). The 12-month total counts sole contracts in full and joint contracts by the supplier's share; joint contracts without a published share are counted but not summed. Multi-year contracts count only the current-period amount. Unit-price (framework) contracts are reported separately because their values are ceilings, not spend.

Aggregation Period2025-11-01 to 2026-10-31 (basis: original_signed_date)
12-Month Procurement AmountKRW 7,127,698,390
12-Month Contract Count5 (Joint contracts: 0)
Unit-Price (Framework) Contracts (Reported Separately)0 contracts | Ceiling: KRW 0
Procurement Sourcehttps://www.g2b.go.kr (verified: 2026-11-02T04:36:11.608Z)

By Procurement Category

CategoryContracts12M Counted Amount (KRW)
Goods (물품)0KRW 0
Construction (공사)5KRW 7,127,698,390
Services (용역)0KRW 0
Foreign Procurement (외자)0KRW 0

By Contract Type

Contract TypeContractsSupplier Share / Current Amount (KRW)Total Contract Ceiling / Multi-year Total (KRW)
Lump-sum / Standard (총액·일반)3KRW 5,356,153,940KRW 5,356,153,940
Multi-year / Continuing (장기·계속비)2KRW 1,771,544,450KRW 7,220,598,210
Unit-price / Framework Ceiling (단가·제3자단가 — excluded from 12M total)0KRW 0KRW 0
Unclassified / Zero-amount (기타)0KRW 0KRW 0

Top 5 Government Buyers

Buyer (Korean Legal Name)Agency CodeContracts12M Amount (KRW)
한국항공우주연구원Z0048431KRW 4,637,883,940
법무부12700002KRW 1,771,544,450
충청북도 청주시57100001KRW 704,420,000
청주도시공사Z0049781KRW 13,850,000

Recent Contracts (up to 5)

Signed DateContract No. (KONEPS)Contract Title (KO)Category / TypeBuyer (KO)Contract Amount (KRW)Participation
2026-08-24 R26TA02168163 목련공원 동백A기단 개보수 공사 construction / lump_sum 청주도시공사 KRW 13,850,000 Sole (100%)
2026-08-18 R26TA02147688 국가종합비행성능시험장 비행안전 모니터링 연구동 건설공사 construction / lump_sum 한국항공우주연구원 KRW 4,637,883,940 Sole (100%)
2026-04-21 (chg: 2026-09-09) R26TA01774457 청주보호관찰소 청사 증축공사(건축) construction / multi_year 법무부 KRW 1,290,044,450 Sole (100%)
2026-03-13 (chg: 2026-10-16) R26TA01613290 청주아트홀 부속시설 내진보강 및 환경개선공사(건축) construction / lump_sum 충청북도 청주시 KRW 704,420,000 Sole (100%)
2025-12-23 R25TA01253575 청주보호관찰소 청사 증축공사(건축) construction / multi_year 법무부 KRW 481,500,000 Sole (100%)

Source & Disclaimer

source_url: https://www.g2b.go.kr | verified_at: 2026-11-02T04:36:11.608Z

Data from Korea's Public Procurement Service (KONEPS contract and supplier records) via data.go.kr. Corporate suppliers only; sole proprietors are excluded. Not investment advice.