{ "module": "kr-suppliers", "itemId": "2838600730", "title": "yoonseong construction co. (윤성건설 주식회사)", "summary": "Public procurement supplier (2838600730): 11 contracts, KRW 2,082,344,450.", "data": { "kind": "supplier", "business_registration_no": "2838600730", "corp_code": null, "name_en": "yoonseong construction co.", "name_ko": "윤성건설 주식회사", "established_date": "2016-12-21", "address": "경기도 의왕시 철도박물관로 176-0, 신기술실용화센터2동 기술사업화연구실 315호 (월암동, 한국철도기술연구원)", "homepage": null, "manufacturer_type": { "code": "supplier", "raw_ko": "공급" }, "employees_reported": 30, "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": 11, "joint_contract_count": 1, "total_amount_krw": 2082344450, "by_category": { "goods": { "contract_count": 0, "amount_krw": 0 }, "construction": { "contract_count": 10, "amount_krw": 2082344450 }, "services": { "contract_count": 1, "amount_krw": 0 }, "foreign": { "contract_count": 0, "amount_krw": 0 } }, "by_contract_type": { "lump_sum": { "contract_count": 9, "amount_total_krw": 2569013950, "amount_this_krw": 2569013950, "share_amount_krw": 2003273950 }, "unit_price": { "contract_count": 1, "amount_total_krw": 63941380, "amount_this_krw": 63941380, "share_amount_krw": 63941380 }, "multi_year": { "contract_count": 1, "amount_total_krw": 79070500, "amount_this_krw": 79070500, "share_amount_krw": 79070500 }, "unknown": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 } }, "top_buyers": [ { "buyer_code": "B553766", "buyer_ko": "서울교통공사", "contract_count": 2, "amount_krw": 1591422030 }, { "buyer_code": "3990037", "buyer_ko": "경기도 남양주시 화도읍", "contract_count": 1, "amount_krw": 202462870 }, { "buyer_code": "7642000", "buyer_ko": "경기도교육청 경기도군포의왕교육지원청", "contract_count": 2, "amount_krw": 134509500 }, { "buyer_code": "4030000", "buyer_ko": "경기도 의왕시", "contract_count": 3, "amount_krw": 101909050 }, { "buyer_code": "Z003991", "buyer_ko": "인천교통공사", "contract_count": 2, "amount_krw": 31781000 } ], "recent_contracts": [ { "contract_no": "R26TA02129270", "title_ko": "관광열차 레일 및 턴테이블 보수공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-08-10", "changed_date": null, "amount_total_krw": 20260000, "amount_this_krw": 20260000, "amount_krw": 20260000, "buyer_ko": "경상북도 문경시", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02129270&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA02073044", "title_ko": "인천1호선 작전103A분기기 성능개선공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-07-20", "changed_date": null, "amount_total_krw": 18691000, "amount_this_krw": 18691000, "amount_krw": 18691000, "buyer_ko": "인천교통공사", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02073044&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA02041642", "title_ko": "의왕부곡초 외2교(곡란중, 흥진고) 석면해체제거공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-07-09", "changed_date": "2026-08-11", "amount_total_krw": 55439000, "amount_this_krw": 55439000, "amount_krw": 55439000, "buyer_ko": "경기도교육청 경기도군포의왕교육지원청", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02041642&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA02007098", "title_ko": "2026년 의왕시 빗물받이준설 단가공사 2구역(2차)", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-06-26", "changed_date": "2026-10-27", "amount_total_krw": 83049050, "amount_this_krw": 83049050, "amount_krw": 83049050, "buyer_ko": "경기도 의왕시", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02007098&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01999036", "title_ko": "2026년 3호선 궤도도상개량공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-06-24", "changed_date": null, "amount_total_krw": 1591422030, "amount_this_krw": 1591422030, "amount_krw": 1591422030, "buyer_ko": "서울교통공사", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01999036&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01967683", "title_ko": "차산3리 인도교 설치공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-06-16", "changed_date": null, "amount_total_krw": 202462870, "amount_this_krw": 202462870, "amount_krw": 202462870, "buyer_ko": "경기도 남양주시 화도읍", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01967683&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01874550", "title_ko": "2026년 8호선 별내구간 궤도시설 정밀진단 및 성능평가 용역", "category": "services", "contract_type": "lump_sum", "signed_date": "2026-05-20", "changed_date": null, "amount_total_krw": 565740000, "amount_this_krw": 565740000, "amount_krw": 565740000, "buyer_ko": "서울교통공사", "method_ko": "제한경쟁", "role": "도급업체", "joint": true, "share_pct": null, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01874550&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070002&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01523871", "title_ko": "2026년 의왕시 빗물받이 준설 단가공사(2구역)", "category": "construction", "contract_type": "unit_price", "signed_date": "2026-02-24", "changed_date": null, "amount_total_krw": 63941380, "amount_this_krw": 63941380, "amount_krw": 63941380, "buyer_ko": "경기도 의왕시", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01523871&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01091961", "title_ko": "군포e비즈니스고 석면해체제거공사(계속비)", "category": "construction", "contract_type": "multi_year", "signed_date": "2025-11-18", "changed_date": "2026-01-30", "amount_total_krw": 79070500, "amount_this_krw": 79070500, "amount_krw": 79070500, "buyer_ko": "경기도교육청 경기도군포의왕교육지원청", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01091961&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01094659", "title_ko": "검단오류 분기레일 보수공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2025-11-17", "changed_date": null, "amount_total_krw": 13090000, "amount_this_krw": 13090000, "amount_krw": 13090000, "buyer_ko": "인천교통공사", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01094659&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01054824", "title_ko": "어린이보호구역 내 옐로카펫 교체 및 신규 설치 공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2025-11-06", "changed_date": null, "amount_total_krw": 18860000, "amount_this_krw": 18860000, "amount_krw": 18860000, "buyer_ko": "경기도 의왕시", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01054824&ctrtChgOrd=00&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." }