S1 CONSTRUCTION CO.,LTD. (에스원건설(주))
Business Registration No.: 1418108262 | Unlisted Corporate Supplier
| English Name (KONEPS / DART) | S1 CONSTRUCTION CO.,LTD. |
|---|---|
| Korean Legal Name | 에스원건설(주) |
| Business Registration No. | 1418108262 |
| Established Date | 2007-02-01 |
| Region | 강원특별자치도 원주시 |
| Address (KO) | 강원특별자치도 원주시 흥업면 대안은행정길 99, 2동 2층 |
| Homepage | N/A |
| Manufacturer Classification | manufacturer (제조) |
| Reported Employees | 13 (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 24,645,301,640 |
| 12-Month Contract Count | 12 (Joint contracts: 4) |
| Unit-Price (Framework) Contracts (Reported Separately) | 0 contracts | Ceiling: KRW 0 |
| 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) | 12 | KRW 24,645,301,640 |
| 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) | 4 | KRW 8,277,462,000 | KRW 8,277,462,000 |
| Multi-year / Continuing (장기·계속비) | 8 | KRW 16,367,839,640 | KRW 55,641,035,000 |
| Unit-price / Framework Ceiling (단가·제3자단가 — excluded from 12M total) | 0 | KRW 0 | KRW 0 |
| Unclassified / Zero-amount (기타) | 0 | KRW 0 | KRW 0 |
Top 5 Government Buyers
| Buyer (Korean Legal Name) | Agency Code | Contracts | 12M Amount (KRW) |
|---|---|---|---|
| 강원특별자치도 평창군 | 4281000 | 1 | KRW 6,472,610,000 |
| 재단법인 한국엘피지사업관리원 | ZT00968 | 1 | KRW 6,067,880,000 |
| 제주특별자치도개발공사 | B551939 | 1 | KRW 3,601,184,650 |
| 강원특별자치도 강릉시 상하수도사업소 | 4201031 | 2 | KRW 3,112,838,190 |
| 한국농어촌공사 강원지역본부 원주지사 | D150182 | 1 | KRW 1,841,603,000 |
Recent Contracts (up to 12)
| Signed Date | Contract No. (KONEPS) | Contract Title (KO) | Category / Type | Buyer (KO) | Contract Amount (KRW) | Participation |
|---|---|---|---|---|---|---|
2026-10-06 |
R26TA02285060 |
강릉시 남대천 우안 차집관로 복선화사업(2차분) | construction / multi_year |
강원특별자치도 강릉시 상하수도사업소 | KRW 5,177,051,000 |
Joint (49%) |
2026-09-16 |
R26TA02228710 |
호저면 행정복지센터 및 주민자치센터 신축공사(소방) | construction / multi_year |
강원특별자치도 원주시 | KRW 102,759,000 |
Sole (100%) |
2026-08-27 |
R26TA02171746 |
춘천초 교실 및 급식소 증축 전기공사 | construction / multi_year |
강원특별자치도교육청 강원특별자치도춘천교육지원청 | KRW 1,089,204,000 |
Sole (100%) |
2026-07-16 |
R26TA02059055 |
남부권 골프연습장 진입로 조성사업 | construction / lump_sum |
강원특별자치도 정선군 | KRW 411,193,000 |
Sole (100%) |
2026-05-26 |
R26TA01881158 |
인제군 남면 접경지역 LPG배관망 구축사업 시설공사 | construction / lump_sum |
재단법인 한국엘피지사업관리원 | KRW 6,067,880,000 |
Sole (100%) |
2026-05-26 |
R26TA01875284 |
동홍동 공공주택 건립사업(건축) | construction / multi_year |
제주특별자치도개발공사 | KRW 10,289,099,000 |
Joint (35%) |
2026-05-21 |
R26TA01872288 |
강릉시 남대천 우안 차집관로 복선화사업 | construction / multi_year |
강원특별자치도 강릉시 상하수도사업소 | KRW 1,175,680,000 |
Joint (49%) |
2026-04-22 (chg: 2026-10-06) |
R26TA01785905 |
농업생명과학대학 개축 소방공사 | construction / multi_year |
강원대학교 | KRW 492,136,000 |
Joint (30%) |
2026-04-22 (chg: 2026-10-23) |
R26TA01775448 |
연곡 파크골프장 조성사업 | construction / lump_sum |
강원특별자치도 강릉시 | KRW 1,326,295,000 |
Sole (100%) |
2026-04-03 (chg: 2026-04-07) |
R26TA01679735 |
창리 소규모 마을하수도 설치사업(토목,건축,기계) | construction / multi_year |
강원특별자치도 평창군 | KRW 6,472,610,000 |
Sole (100%) |
2026-03-11 |
R26TA01580021 |
정선군 임계면 직원지구 밭기반정비사업 토목공사 | construction / multi_year |
한국농어촌공사 강원지역본부 원주지사 | KRW 1,841,603,000 |
Sole (100%) |
2025-11-11 (chg: 2026-10-06) |
R25TA01054939 |
승일교 야간 미디어아트로드 조성 공사(조경) | construction / lump_sum |
강원특별자치도 철원군 | KRW 472,094,000 |
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.