{
  "module": "kr-suppliers",
  "itemId": "2548600917",
  "title": "주식회사 아이제이에스티",
  "summary": "Public procurement supplier (2548600917): 8 contracts, KRW 4,113,783,381.",
  "data": {
    "kind": "supplier",
    "business_registration_no": "2548600917",
    "corp_code": null,
    "name_en": null,
    "name_ko": "주식회사 아이제이에스티",
    "established_date": "2018-03-08",
    "address": "부산광역시 사상구 모라로 22-0 (모라동), 1108호",
    "homepage": null,
    "manufacturer_type": {
      "code": "supplier",
      "raw_ko": "공급"
    },
    "employees_reported": 10,
    "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": 8,
      "joint_contract_count": 1,
      "total_amount_krw": 4113783381,
      "by_category": {
        "goods": {
          "contract_count": 0,
          "amount_krw": 0
        },
        "construction": {
          "contract_count": 8,
          "amount_krw": 4113783381
        },
        "services": {
          "contract_count": 0,
          "amount_krw": 0
        },
        "foreign": {
          "contract_count": 0,
          "amount_krw": 0
        }
      },
      "by_contract_type": {
        "lump_sum": {
          "contract_count": 5,
          "amount_total_krw": 3575656850,
          "amount_this_krw": 3575656850,
          "share_amount_krw": 3575656850
        },
        "unit_price": {
          "contract_count": 2,
          "amount_total_krw": 1609358760,
          "amount_this_krw": 1609358760,
          "share_amount_krw": 1609358760
        },
        "multi_year": {
          "contract_count": 1,
          "amount_total_krw": 32336535000,
          "amount_this_krw": 2460007000,
          "share_amount_krw": 538126531
        },
        "unknown": {
          "contract_count": 0,
          "amount_total_krw": 0,
          "amount_this_krw": 0,
          "share_amount_krw": 0
        }
      },
      "top_buyers": [
        {
          "buyer_code": "B552625",
          "buyer_ko": "부산환경공단",
          "contract_count": 1,
          "amount_krw": 1844260000
        },
        {
          "buyer_code": "3400115",
          "buyer_ko": "부산광역시 기장군 일광읍",
          "contract_count": 1,
          "amount_krw": 945406000
        },
        {
          "buyer_code": "6260361",
          "buyer_ko": "부산광역시 건설본부",
          "contract_count": 1,
          "amount_krw": 538126531
        },
        {
          "buyer_code": "7171000",
          "buyer_ko": "부산광역시교육청 부산광역시서부교육지원청",
          "contract_count": 1,
          "amount_krw": 390328000
        },
        {
          "buyer_code": "7150597",
          "buyer_ko": "부산광역시교육청 대진전자통신고등학교",
          "contract_count": 1,
          "amount_krw": 291795570
        }
      ],
      "recent_contracts": [
        {
          "contract_no": "R26TA02107545",
          "title_ko": "대진전자통신고등학교 산업디자인과 학과재구조화 실내건축 공사 입찰공고(긴급)",
          "category": "construction",
          "contract_type": "lump_sum",
          "signed_date": "2026-07-30",
          "changed_date": "2026-09-13",
          "amount_total_krw": 291795570,
          "amount_this_krw": 291795570,
          "amount_krw": 291795570,
          "buyer_ko": "부산광역시교육청 대진전자통신고등학교",
          "method_ko": "제한경쟁",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA02107545&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R26TA01838476",
          "title_ko": "하수관로 신설(확충)공사[영도처리구역(동삼, 청학동 일원)](4차)",
          "category": "construction",
          "contract_type": "multi_year",
          "signed_date": "2026-05-08",
          "changed_date": null,
          "amount_total_krw": 32336535000,
          "amount_this_krw": 2460007000,
          "amount_krw": 2460007000,
          "buyer_ko": "부산광역시 건설본부",
          "method_ko": "제한경쟁",
          "role": "도급업체",
          "joint": true,
          "share_pct": 21.875,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01838476&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R26TA01786456",
          "title_ko": "맨홀 추락방지시설 및 노후맨홀 정비공사",
          "category": "construction",
          "contract_type": "lump_sum",
          "signed_date": "2026-04-24",
          "changed_date": "2026-09-07",
          "amount_total_krw": 1844260000,
          "amount_this_krw": 1844260000,
          "amount_krw": 1844260000,
          "buyer_ko": "부산환경공단",
          "method_ko": "제한경쟁",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01786456&ctrtChgOrd=02&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R26TA01439377",
          "title_ko": "2026년 오수관로 유지관리 긴급보수 단가계약 공사(서부권)",
          "category": "construction",
          "contract_type": "unit_price",
          "signed_date": "2026-02-11",
          "changed_date": null,
          "amount_total_krw": 1536908910,
          "amount_this_krw": 1536908910,
          "amount_krw": 1536908910,
          "buyer_ko": "부산환경공단 관로사업소",
          "method_ko": "제한경쟁",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01439377&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R26TA01403770",
          "title_ko": "시설과 환경개선공사",
          "category": "construction",
          "contract_type": "lump_sum",
          "signed_date": "2026-01-29",
          "changed_date": "2026-03-20",
          "amount_total_krw": 103867280,
          "amount_this_krw": 103867280,
          "amount_krw": 103867280,
          "buyer_ko": "한국해양대학교",
          "method_ko": "수의계약",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01403770&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R26TA01383741",
          "title_ko": "일광읍행정복지센터 인테리어 공사(건축)",
          "category": "construction",
          "contract_type": "lump_sum",
          "signed_date": "2026-01-28",
          "changed_date": "2026-05-08",
          "amount_total_krw": 945406000,
          "amount_this_krw": 945406000,
          "amount_krw": 945406000,
          "buyer_ko": "부산광역시 기장군 일광읍",
          "method_ko": "제한경쟁",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01383741&ctrtChgOrd=01&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R26TA01314414",
          "title_ko": "2026년 차선도색 정비공사(단가계약)",
          "category": "construction",
          "contract_type": "unit_price",
          "signed_date": "2026-01-07",
          "changed_date": null,
          "amount_total_krw": 72449850,
          "amount_this_krw": 72449850,
          "amount_krw": 72449850,
          "buyer_ko": "부산광역시 영도구",
          "method_ko": "수의계약",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R26TA01314414&ctrtChgOrd=00&prcmBsneSeCd=%EC%A1%B0070004&srchName=ctrtCrst&openUrl=Y"
        },
        {
          "contract_no": "R25TA01123905",
          "title_ko": "부산남중학교 화장실개량 및 기타공사",
          "category": "construction",
          "contract_type": "lump_sum",
          "signed_date": "2025-12-01",
          "changed_date": "2026-05-07",
          "amount_total_krw": 390328000,
          "amount_this_krw": 390328000,
          "amount_krw": 390328000,
          "buyer_ko": "부산광역시교육청 부산광역시서부교육지원청",
          "method_ko": "제한경쟁",
          "role": "주계약업체",
          "joint": false,
          "share_pct": 100,
          "url": "https://www.g2b.go.kr/link/FIUA027_01/single/?ctrtNo=R25TA01123905&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."
}