{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T01:46:11Z",
  "source": "Assay Systems register, https://assay-systems.com/register/",
  "access_notice": "On 15 November 2026, automated access to assay-systems.com closes. After that date, access is available only under a paid annual subscription contract. Contact: contact@assay-systems.com",
  "data": {
    "id": "ASY-NG-0WIYFYJ0NV",
    "type": "page",
    "country": "ng",
    "name": "DIAMOND LEEDS LTD: public contracts won without a rival in Nigeria",
    "url": "https://assay-systems.com/register/ng/uncontested/s/diamond-leeds-ltd/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 7,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 44,
        "unit": "percent",
        "display": "44%"
      },
      {
        "label": "without a competition",
        "value": 0,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 7,
        "unit": "count"
      }
    ],
    "text": [
      "DIAMOND LEEDS LTD won 7 of its 16 public contract awards in Nigeria without a rival from 2020-01-24 to 2023-10-31: 0 without a competition and 7 after a competition that drew a single bid. 6 buyers awarded it without a rival, the largest UPPER BENUE RBDA with 2."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2023-10-31",
          "Buyer": "NIGERIA INSTITUTE OF LEATHER AND SCIENCE TECHNOLOGY (NILEST) HQTRS ocds-gyl66f-228050001-000183",
          "Buyer link": "https://assay-systems.com/register/ng/uncontested/b/nigeria-institute-of-leather-and-science-technology-nilest-hqtrs/",
          "How": "Single bid open",
          "Stated reason": "National Competitive Bidding"
        },
        {
          "Date": "2022-08-15",
          "Buyer": "NATIONAL CENTRE FOR WOMEN DEVELOPMENT ocds-gyl66f-514002001-000017",
          "Buyer link": "https://assay-systems.com/register/ng/uncontested/b/national-centre-for-women-development/",
          "How": "Single bid open",
          "Stated reason": "Selective Tendering"
        },
        {
          "Date": "2021-09-30",
          "Buyer": "UPPER BENUE RBDA ocds-gyl66f-252047001-000228",
          "Buyer link": "https://assay-systems.com/register/ng/uncontested/b/upper-benue-rbda/",
          "How": "Single bid open",
          "Stated reason": "National Competitive Bidding"
        },
        {
          "Date": "2021-05-03",
          "Buyer": "FEDERAL MINISTRY OF WATER RESOURCES - HQTRS ocds-gyl66f-252001001-000074",
          "Buyer link": "https://assay-systems.com/register/ng/uncontested/b/federal-ministry-of-water-resources-hqtrs/",
          "How": "Single bid open",
          "Stated reason": "Emergency"
        },
        {
          "Date": "2020-11-09",
          "Buyer": "LOWER BENUE RBDA ocds-gyl66f-252042001-000222",
          "Buyer link": "https://assay-systems.com/register/ng/uncontested/b/lower-benue-rbda/",
          "How": "Single bid open",
          "Stated reason": "Selective Tendering"
        },
        {
          "Date": "2020-10-30",
          "Buyer": "UPPER BENUE RBDA ocds-gyl66f-252047001-000170",
          "Buyer link": "https://assay-systems.com/register/ng/uncontested/b/upper-benue-rbda/",
          "How": "Single bid open",
          "Stated reason": "Selective Tendering"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Nigeria",
        "url": "https://assay-systems.com/register/ng/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/ng/diamond-leeds-ltd/"
      },
      {
        "name": "UPPER BENUE RBDA",
        "url": "https://assay-systems.com/register/ng/uncontested/b/upper-benue-rbda/"
      },
      {
        "name": "FEDERAL MINISTRY OF ENVIRONMENT HEADQUARTERS",
        "url": "https://assay-systems.com/register/ng/uncontested/b/federal-ministry-of-environment-headquarters/"
      },
      {
        "name": "NIGERIA INSTITUTE OF LEATHER AND SCIENCE TECHNOLOGY (NILEST) HQTRS",
        "url": "https://assay-systems.com/register/ng/uncontested/b/nigeria-institute-of-leather-and-science-technology-nilest-hqtrs/"
      },
      {
        "name": "NATIONAL CENTRE FOR WOMEN DEVELOPMENT",
        "url": "https://assay-systems.com/register/ng/uncontested/b/national-centre-for-women-development/"
      },
      {
        "name": "FEDERAL MINISTRY OF WATER RESOURCES - HQTRS",
        "url": "https://assay-systems.com/register/ng/uncontested/b/federal-ministry-of-water-resources-hqtrs/"
      },
      {
        "name": "LOWER BENUE RBDA",
        "url": "https://assay-systems.com/register/ng/uncontested/b/lower-benue-rbda/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-NG-0WIYFYJ0NV",
    "cite_as": "Assay Systems, \"DIAMOND LEEDS LTD: public contracts won without a rival in Nigeria\", https://assay-systems.com/register/ng/uncontested/s/diamond-leeds-ltd/"
  }
}