{ "module": "kr-suppliers", "itemId": "4118141476", "title": "JA-1 CONSTRUCT.CORP (자이종합건설주식회사)", "summary": "Public procurement supplier (4118141476): 4 contracts, KRW 4,141,022,100.", "data": { "kind": "supplier", "business_registration_no": "4118141476", "corp_code": null, "name_en": "JA-1 CONSTRUCT.CORP", "name_ko": "자이종합건설주식회사", "established_date": "2005-07-18", "address": "전남광주통합특별시 무안군 삼향읍 남악2로22번길 30 (뉴캐슬주상복합아파트) , 상가 102호", "homepage": null, "manufacturer_type": { "code": "supplier", "raw_ko": "공급" }, "employees_reported": 14, "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": 4, "joint_contract_count": 0, "total_amount_krw": 4141022100, "by_category": { "goods": { "contract_count": 0, "amount_krw": 0 }, "construction": { "contract_count": 4, "amount_krw": 4141022100 }, "services": { "contract_count": 0, "amount_krw": 0 }, "foreign": { "contract_count": 0, "amount_krw": 0 } }, "by_contract_type": { "lump_sum": { "contract_count": 1, "amount_total_krw": 1098216100, "amount_this_krw": 1098216100, "share_amount_krw": 1098216100 }, "unit_price": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 }, "multi_year": { "contract_count": 3, "amount_total_krw": 9106159590, "amount_this_krw": 3042806000, "share_amount_krw": 3042806000 }, "unknown": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 } }, "top_buyers": [ { "buyer_code": "5785000", "buyer_ko": "전남광주통합특별시 여수시", "contract_count": 1, "amount_krw": 2571239000 }, { "buyer_code": "8682000", "buyer_ko": "전남광주통합특별시교육청 전남광주통합특별시영광교육지원청", "contract_count": 1, "amount_krw": 1098216100 }, { "buyer_code": "5875000", "buyer_ko": "전남광주통합특별시 영암군", "contract_count": 1, "amount_krw": 466687000 }, { "buyer_code": "1613260", "buyer_ko": "국토교통부 익산지방국토관리청 광주국토관리사무소", "contract_count": 1, "amount_krw": 4880000 } ], "recent_contracts": [ { "contract_no": "R26TA02130270", "title_ko": "영암 현충공원 조성사업 건축공사(1차)", "category": "construction", "contract_type": "multi_year", "signed_date": "2026-08-07", "changed_date": "2026-08-24", "amount_total_krw": 583340300, "amount_this_krw": 466687000, "amount_krw": 466687000, "buyer_ko": "전남광주통합특별시 영암군", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02130270&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01997776", "title_ko": "영광옥당중 태권도훈련장 증축공사", "category": "construction", "contract_type": "lump_sum", "signed_date": "2026-06-24", "changed_date": null, "amount_total_krw": 1098216100, "amount_this_krw": 1098216100, "amount_krw": 1098216100, "buyer_ko": "전남광주통합특별시교육청 전남광주통합특별시영광교육지원청", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01997776&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01855130", "title_ko": "국도23호선 함평 대덕지구 등 6개소 도로시설물 정비공사", "category": "construction", "contract_type": "multi_year", "signed_date": "2026-05-20", "changed_date": "2026-10-08", "amount_total_krw": 1233421290, "amount_this_krw": 4880000, "amount_krw": 4880000, "buyer_ko": "국토교통부 익산지방국토관리청 광주국토관리사무소", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01855130&ctrtChgOrd=02&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R26TA01473565", "title_ko": "돌산 생활SOC 복합화 사업(건축)(3차분)", "category": "construction", "contract_type": "multi_year", "signed_date": "2026-02-20", "changed_date": "2026-06-11", "amount_total_krw": 7289398000, "amount_this_krw": 2571239000, "amount_krw": 2571239000, "buyer_ko": "전남광주통합특별시 여수시", "method_ko": "제한경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01473565&ctrtChgOrd=04&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." }