{ "module": "kr-suppliers", "itemId": "3088106547", "title": "YOUNSUNG CONSTRUCTION CO.,LTD (주식회사 윤성토건)", "summary": "Public procurement supplier (3088106547): 6 contracts, KRW 2,553,512,000.", "data": { "kind": "supplier", "business_registration_no": "3088106547", "corp_code": null, "name_en": "YOUNSUNG CONSTRUCTION CO.,LTD", "name_ko": "주식회사 윤성토건", "established_date": "1995-09-01", "address": "세종특별자치시 장군면 영평사길 33,2층", "homepage": null, "manufacturer_type": { "code": "supplier", "raw_ko": "공급" }, "employees_reported": 12, "employees_note": "Self-reported employee count at Korea ON-Line E-Procurement System (KONEPS) registration; may differ from National Pension Service (L1) subscriber counts.", "amount_note": "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.", "procurement": { "period": { "from": "2025-11-01", "to": "2026-10-31", "basis": "original_signed_date" }, "contract_count": 6, "joint_contract_count": 1, "total_amount_krw": 2553512000, "by_category": { "goods": { "contract_count": 0, "amount_krw": 0 }, "construction": { "contract_count": 4, "amount_krw": 2350908000 }, "services": { "contract_count": 2, "amount_krw": 202604000 }, "foreign": { "contract_count": 0, "amount_krw": 0 } }, "by_contract_type": { "lump_sum": { "contract_count": 4, "amount_total_krw": 452627000, "amount_this_krw": 452627000, "share_amount_krw": 452627000 }, "unit_price": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 }, "multi_year": { "contract_count": 2, "amount_total_krw": 25254036780, "amount_this_krw": 5315285000, "share_amount_krw": 2100885000 }, "unknown": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 } }, "top_buyers": [ { "buyer_code": "1613229", "buyer_ko": "국토교통부 대전지방국토관리청 논산국토관리사무소", "contract_count": 1, "amount_krw": 1297285000 }, { "buyer_code": "7001220", "buyer_ko": "한국교원대학교", "contract_count": 1, "amount_krw": 803600000 }, { "buyer_code": "5690421", "buyer_ko": "세종특별자치시 상하수도사업소", "contract_count": 3, "amount_krw": 272351000 }, { "buyer_code": "1723399", "buyer_ko": "과학기술정보통신부 우정사업본부 충청지방우정청", "contract_count": 1, "amount_krw": 180276000 } ], "recent_contracts": [ { "contract_no": "R26TA02287039", "title_ko": "수질복원센터A1 총인처리설비 섬유여재 교체 및 세척", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-10-12", "changed_date": null, "amount_total_krw": 69747000, "amount_this_krw": 69747000, "amount_krw": 69747000, "buyer_ko": "세종특별자치시 상하수도사업소", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02287039&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA02032890", "title_ko": "한국교원대학교 부설체육중고등특수학교 신축 공사(건축)(장기 2차)", "category": "construction", "contract_type": "multi_year", "signed_date": "2026-07-08", "changed_date": null, "amount_total_krw": 22962575760, "amount_this_krw": 4018000000, "amount_krw": 4018000000, "buyer_ko": "한국교원대학교", "method_ko": "제한경쟁", "role": "도급업체", "joint": true, "share_pct": 20, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02032890&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01843973", "title_ko": "2026년도 세종시 비점오염저감시설 유지관리용역", "category": "services", "contract_type": "lump_sum", "signed_date": "2026-05-14", "changed_date": null, "amount_total_krw": 75388000, "amount_this_krw": 75388000, "amount_krw": 75388000, "buyer_ko": "세종특별자치시 상하수도사업소", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01843973&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070002&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01826326", "title_ko": "2026년 수질복원센터B 분리막 회복세정 용역", "category": "services", "contract_type": "lump_sum", "signed_date": "2026-05-12", "changed_date": null, "amount_total_krw": 127216000, "amount_this_krw": 127216000, "amount_krw": 127216000, "buyer_ko": "세종특별자치시 상하수도사업소", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01826326&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070002&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01444539", "title_ko": "세종집현동우체국 창구 개설공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-02-09", "changed_date": "2026-04-06", "amount_total_krw": 180276000, "amount_this_krw": 180276000, "amount_krw": 180276000, "buyer_ko": "과학기술정보통신부 우정사업본부 충청지방우정청", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01444539&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01288736", "title_ko": "2024년 국도36호선 세종 제설 및 비축창고 신축공사(3차)", "category": "construction", "contract_type": "multi_year", "signed_date": "2025-12-29", "changed_date": "2026-06-15", "amount_total_krw": 2291461020, "amount_this_krw": 1297285000, "amount_krw": 1297285000, "buyer_ko": "국토교통부 대전지방국토관리청 논산국토관리사무소", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01288736&ctrtChgOrd=02&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" } ], "amount_note": "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.", "source_url": "https://www.g2b.go.kr", "verified_at": "2026-11-02T04:36:11.608Z" }, "source_url": "https://www.g2b.go.kr", "verified_at": "2026-11-02T04:36:11.608Z" }, "source_url": "https://www.g2b.go.kr", "verified_at": "2026-11-02T04:36:11.608Z", "updated_at": "2026-11-02T04:36:11.608Z", "notice": "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.", "amount_note": "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." }