{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T12:40:34Z",
  "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-PY-0YDMV8W05I",
    "type": "page",
    "country": "py",
    "name": "RET SL CONSTRUCCIONES S.A: public contracts won without a rival in Paraguay",
    "url": "https://assay-systems.com/register/py/uncontested/s/ret-sl-construcciones-s-a/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 15,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 75,
        "unit": "percent",
        "display": "75%"
      },
      {
        "label": "without a competition",
        "value": 1,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 14,
        "unit": "count"
      }
    ],
    "text": [
      "RET SL CONSTRUCCIONES S.A won 15 of its 20 public contract awards in Paraguay without a rival from 2023-05-05 to 2026-03-09: 1 without a competition and 14 after a competition that drew a single bid. 4 buyers awarded it without a rival, the largest Municipalidad de Cárlos Antonio López with 7."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2025-10-27",
          "Buyer": "Municipalidad de Cárlos Antonio López ocds-03ad3f-475895-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-carlos-antonio-lopez/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2025-10-23",
          "Buyer": "Municipalidad de Cárlos Antonio López ocds-03ad3f-474873-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-carlos-antonio-lopez/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2025-10-14",
          "Buyer": "Municipalidad de Mayor Otaño ocds-03ad3f-475426-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mayor-otano/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2025-08-08",
          "Buyer": "Municipalidad de Cárlos Antonio López ocds-03ad3f-472854-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-carlos-antonio-lopez/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2025-07-09",
          "Buyer": "Municipalidad de Cárlos Antonio López ocds-03ad3f-471856-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-carlos-antonio-lopez/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2025-05-16",
          "Buyer": "Municipalidad de Mayor Otaño ocds-03ad3f-468626-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mayor-otano/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Paraguay",
        "url": "https://assay-systems.com/register/py/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/py/ret-sl-construcciones-s-a/"
      },
      {
        "name": "Municipalidad de Cárlos Antonio López",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-carlos-antonio-lopez/"
      },
      {
        "name": "Municipalidad de Mayor Otaño",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mayor-otano/"
      },
      {
        "name": "Municipalidad de San Rafael del Paraná",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-san-rafael-del-parana/"
      },
      {
        "name": "Municipalidad de Alto Verá",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-alto-vera/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-PY-0YDMV8W05I",
    "cite_as": "Assay Systems, \"RET SL CONSTRUCCIONES S.A: public contracts won without a rival in Paraguay\", https://assay-systems.com/register/py/uncontested/s/ret-sl-construcciones-s-a/"
  }
}