{ "module": "kr-suppliers", "itemId": "1198173766", "title": "CHOONGSOO SYSTEM (청수시스템(주))", "summary": "Public procurement supplier (1198173766): 4 contracts, KRW 2,178,976,160.", "data": { "kind": "supplier", "business_registration_no": "1198173766", "corp_code": null, "name_en": "CHOONGSOO SYSTEM", "name_ko": "청수시스템(주)", "established_date": "2004-06-03", "address": "서울특별시 금천구 시흥대로 97 (시흥동) 1동 330호", "homepage": null, "manufacturer_type": { "code": "supplier", "raw_ko": "공급" }, "employees_reported": 18, "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": 2178976160, "by_category": { "goods": { "contract_count": 0, "amount_krw": 0 }, "construction": { "contract_count": 0, "amount_krw": 0 }, "services": { "contract_count": 4, "amount_krw": 2178976160 }, "foreign": { "contract_count": 0, "amount_krw": 0 } }, "by_contract_type": { "lump_sum": { "contract_count": 3, "amount_total_krw": 989610800, "amount_this_krw": 989610800, "share_amount_krw": 989610800 }, "unit_price": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 }, "multi_year": { "contract_count": 1, "amount_total_krw": 2175126700, "amount_this_krw": 1189365360, "share_amount_krw": 1189365360 }, "unknown": { "contract_count": 0, "amount_total_krw": 0, "amount_this_krw": 0, "share_amount_krw": 0 } }, "top_buyers": [ { "buyer_code": "4500000", "buyer_ko": "충청남도 공주시", "contract_count": 1, "amount_krw": 1189365360 }, { "buyer_code": "3280000", "buyer_ko": "부산광역시 영도구", "contract_count": 1, "amount_krw": 746751900 }, { "buyer_code": "1400417", "buyer_ko": "산림청 국립자연휴양림관리소", "contract_count": 1, "amount_krw": 238238900 }, { "buyer_code": "7590019", "buyer_ko": "경기도광명교육청 광명광성초등학교", "contract_count": 1, "amount_krw": 4620000 } ], "recent_contracts": [ { "contract_no": "R26TA01409809", "title_ko": "2026학년도 공기청정기 유지보수 계약", "category": "services", "contract_type": "lump_sum", "signed_date": "2026-02-04", "changed_date": null, "amount_total_krw": 4620000, "amount_this_krw": 4620000, "amount_krw": 4620000, "buyer_ko": "경기도광명교육청 광명광성초등학교", "method_ko": "수의계약", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01409809&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070002&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01301501", "title_ko": "2026년 국립대관령자연휴양림 청소세탁용역", "category": "services", "contract_type": "lump_sum", "signed_date": "2025-12-31", "changed_date": "2026-06-12", "amount_total_krw": 238238900, "amount_this_krw": 238238900, "amount_krw": 238238900, "buyer_ko": "산림청 국립자연휴양림관리소", "method_ko": "일반경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01301501&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070002&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01258256", "title_ko": "[계약대행] 2026~2027년 공주시 CCTV통합관제센터 관제업무 위탁용역(1차)", "category": "services", "contract_type": "multi_year", "signed_date": "2025-12-23", "changed_date": "2026-01-28", "amount_total_krw": 2175126700, "amount_this_krw": 1189365360, "amount_krw": 1189365360, "buyer_ko": "충청남도 공주시", "method_ko": "지명경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01258256&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070002&srchName=ctrtCrst&openUrl=Y" }, { "contract_no": "R25TA01234650", "title_ko": "2026년 영도구 CCTV 통합관제센터 관제 용역", "category": "services", "contract_type": "lump_sum", "signed_date": "2025-12-18", "changed_date": null, "amount_total_krw": 746751900, "amount_this_krw": 746751900, "amount_krw": 746751900, "buyer_ko": "부산광역시 영도구", "method_ko": "지명경쟁", "role": "주계약업체", "joint": false, "share_pct": 100, "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01234650&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070002&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." }