seaju construction co., ltd. ((주)세주건설)
Business Registration No.: 3018135959 | Unlisted Corporate Supplier
| English Name (KONEPS / DART) | seaju construction co., ltd. |
|---|---|
| Korean Legal Name | (주)세주건설 |
| Business Registration No. | 3018135959 |
| Established Date | 1999-03-08 |
| Region | 충청북도 청주시 |
| Address (KO) | 충청북도 청주시 서원구 남이면 양촌3길 12 () |
| Homepage | N/A |
| Manufacturer Classification | supplier (공급) |
| Reported Employees | 10 (Self-reported employee count at Korea ON-Line E-Procurement System (KONEPS) registration; may differ from National Pension Service (L1) subscriber counts.) |
| source_url | https://www.g2b.go.kr |
| verified_at | 2026-11-02T04:36:11.608Z |
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 Period | 2025-11-01 to 2026-10-31 (basis: original_signed_date) |
|---|---|
| 12-Month Procurement Amount | KRW 2,249,807,100 |
| 12-Month Contract Count | 15 (Joint contracts: 0) |
| Unit-Price (Framework) Contracts (Reported Separately) | 3 contracts | Ceiling: KRW 109,679,460 |
| Procurement Source | https://www.g2b.go.kr (verified: 2026-11-02T04:36:11.608Z) |
By Procurement Category
| Category | Contracts | 12M Counted Amount (KRW) |
|---|---|---|
| Goods (물품) | 0 | KRW 0 |
| Construction (공사) | 15 | KRW 2,249,807,100 |
| Services (용역) | 0 | KRW 0 |
| Foreign Procurement (외자) | 0 | KRW 0 |
By Contract Type
| Contract Type | Contracts | Supplier Share / Current Amount (KRW) | Total Contract Ceiling / Multi-year Total (KRW) |
|---|---|---|---|
| Lump-sum / Standard (총액·일반) | 10 | KRW 1,971,937,100 | KRW 1,971,937,100 |
| Multi-year / Continuing (장기·계속비) | 2 | KRW 277,870,000 | KRW 551,463,000 |
| Unit-price / Framework Ceiling (단가·제3자단가 — excluded from 12M total) | 3 | KRW 109,679,460 | KRW 109,679,460 |
| Unclassified / Zero-amount (기타) | 0 | KRW 0 | KRW 0 |
Top 5 Government Buyers
| Buyer (Korean Legal Name) | Agency Code | Contracts | 12M Amount (KRW) |
|---|---|---|---|
| 충청북도 보은군 | 4420000 | 1 | KRW 1,393,423,000 |
| 충청북도 청주시 | 5710000 | 2 | KRW 349,791,000 |
| 국토교통부 대전지방국토관리청 충주국토관리사무소 | 1613234 | 2 | KRW 277,870,000 |
| 충청북도 청주시 상당구 | 5720000 | 1 | KRW 59,067,000 |
| 충청북도 청주시 서원구 | 5725000 | 2 | KRW 40,275,000 |
Recent Contracts (up to 15)
| Signed Date | Contract No. (KONEPS) | Contract Title (KO) | Category / Type | Buyer (KO) | Contract Amount (KRW) | Participation |
|---|---|---|---|---|---|---|
2026-10-19 |
R26TA02327828 |
2026년 상당구 관내 과속방지턱 설치공사 연간단가 2차 | construction / lump_sum |
충청북도 청주시 상당구 | KRW 59,067,000 |
Sole (100%) |
2026-10-06 |
R26TA02286802 |
공북1리 도로확포장공사 | construction / lump_sum |
충청북도 청주시 흥덕구 오송읍 | KRW 27,011,000 |
Sole (100%) |
2026-08-25 (chg: 2026-09-10) |
R26TA02161818 |
2026년 하반기 서원구 지붕형 승강장 설치공사 | construction / lump_sum |
충청북도 청주시 서원구 | KRW 40,275,000 |
Sole (100%) |
2026-08-07 |
R26TA02122083 |
2026년 자전거이용시설 유지보수 단가계약공사(2차) | construction / unit_price |
충청북도 청주시 | KRW 80,000,000 |
Sole (100%) |
2026-07-06 (chg: 2026-10-01) |
R26TA02033466 |
국도5호선 제천 명지동 등 2개소 도로비탈면 정비공사(2차) | construction / multi_year |
국토교통부 대전지방국토관리청 충주국토관리사무소 | KRW 177,870,000 |
Sole (100%) |
2026-06-16 (chg: 2026-08-26) |
R26TA01968281 |
복대동 3158번지 일원 보도정비공사 | construction / lump_sum |
충청북도 청주시 흥덕구 | KRW 31,549,100 |
Sole (100%) |
2026-05-04 (chg: 2026-07-08) |
R26TA01814017 |
교통영향평가 교통개선 시설물 설치공사 | construction / lump_sum |
충청북도 농업기술원 | KRW 36,351,000 |
Sole (100%) |
2026-04-23 (chg: 2026-06-11) |
R26TA01787998 |
척북1리 아스콘덧씌우기공사 | construction / lump_sum |
충청북도 청주시 서원구 남이면 | KRW 12,300,000 |
Sole (100%) |
2026-04-20 (chg: 2026-05-28) |
R26TA01768985 |
사동2리 마을안길 정비공사 | construction / lump_sum |
충청북도 청주시 서원구 남이면 | KRW 10,350,000 |
Sole (100%) |
2026-04-20 (chg: 2026-05-28) |
R26TA01768904 |
가좌2리 마을안길 정비공사 | construction / lump_sum |
충청북도 청주시 서원구 남이면 | KRW 11,820,000 |
Sole (100%) |
2026-03-27 (chg: 2026-07-14) |
R26TA01673045 |
청원구 공항로 등 4개 노선 차선도색공사 | construction / lump_sum |
충청북도 청주시 | KRW 349,791,000 |
Sole (100%) |
2026-02-02 |
R26TA01406587 |
2026년 서원구 관내 주정차금지 (보조)표지판 정비공사(단가계약) | construction / unit_price |
충청북도 청주시 서원구 | KRW 15,000,000 |
Sole (100%) |
2026-01-27 (chg: 2026-09-21) |
R26TA01387347 |
2026년 청원구 관내 주정차금지(보조)표지판 정비공사 단가계약 | construction / unit_price |
충청북도 청주시 청원구 | KRW 14,679,460 |
Sole (100%) |
2025-12-23 (chg: 2026-09-09) |
R25TA01260491 |
급경사지 붕괴위험지구(길탕3) 정비사업 | construction / lump_sum |
충청북도 보은군 | KRW 1,393,423,000 |
Sole (100%) |
2025-12-03 (chg: 2026-06-25) |
R25TA01158922 |
국도5호선 제천 명지동 등 2개소 도로비탈면 정비공사(1차) | construction / multi_year |
국토교통부 대전지방국토관리청 충주국토관리사무소 | KRW 100,000,000 |
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.