Machine-readable JSON: https://agents.comepass.xyz/api/v1/kr-suppliers/5158118281

Seyoon Development Company (세윤산업개발(주))

Business Registration No.: 5158118281 | Unlisted Corporate Supplier

English Name (KONEPS / DART)Seyoon Development Company
Korean Legal Name세윤산업개발(주)
Business Registration No.5158118281
Established Date2000-09-21
Region경상북도 영천시
Address (KO)경상북도 영천시 화산면 장수로 1177
HomepageN/A
Manufacturer Classificationsupplier (공급)
Reported Employees11 (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 5,105,394,760
12-Month Contract Count4 (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)4KRW 5,105,394,760
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)2KRW 1,667,560,960KRW 1,667,560,960
Multi-year / Continuing (장기·계속비)2KRW 3,437,833,800KRW 4,758,820,160
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)
해양수산부 포항지방해양수산청11923641KRW 2,095,033,800
경상북도 김천시50600001KRW 1,342,800,000
경상북도 의성군51500001KRW 1,340,077,390
경상북도 영천시51000001KRW 327,483,570

Recent Contracts (up to 4)

Signed DateContract No. (KONEPS)Contract Title (KO)Category / TypeBuyer (KO)Contract Amount (KRW)Participation
2026-08-04 R26TA02118594 북안 관리 용호천 정비공사 construction / lump_sum 경상북도 영천시 KRW 327,483,570 Sole (100%)
2026-04-30 (chg: 2026-06-09) R26TA01816461 어모처리분구(남산리) 하수관로 정비사업(3차분) construction / multi_year 경상북도 김천시 KRW 1,342,800,000 Sole (100%)
2026-04-07 (chg: 2026-08-19) R26TA01718066 의성아사소하천친수환경개선공사 construction / lump_sum 경상북도 의성군 KRW 1,340,077,390 Sole (100%)
2026-02-12 R26TA01465335 울릉(도동)항 북방파호안 보강공사(2차) construction / multi_year 해양수산부 포항지방해양수산청 KRW 2,095,033,800 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.