{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T01:27:35Z",
  "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-15E137218J",
    "type": "page",
    "country": "py",
    "name": "MARIO NUÑEZ ROLON*: public contracts won without a rival in Paraguay",
    "url": "https://assay-systems.com/register/py/uncontested/s/mario-nunez-rolon/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 80,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 60,
        "unit": "percent",
        "display": "60%"
      },
      {
        "label": "without a competition",
        "value": 5,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 75,
        "unit": "count"
      }
    ],
    "text": [
      "MARIO NUÑEZ ROLON* won 80 of its 134 public contract awards in Paraguay without a rival from 2016-03-29 to 2024-10-29: 5 without a competition and 75 after a competition that drew a single bid. 14 buyers awarded it without a rival, the largest Municipalidad de Ypejhu with 40."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2024-10-29",
          "Buyer": "Municipalidad de Ypejhu ocds-03ad3f-455463-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-ypejhu/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2023-10-16",
          "Buyer": "Municipalidad de Yasy Cañy ocds-03ad3f-435841-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-yasy-cany/",
          "How": "Single bid open",
          "Stated reason": "Contratación Directa"
        },
        {
          "Date": "2023-09-18",
          "Buyer": "Municipalidad de Ypejhu ocds-03ad3f-432386-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-ypejhu/",
          "How": "Single bid open",
          "Stated reason": "Concurso de Ofertas"
        },
        {
          "Date": "2023-09-08",
          "Buyer": "Municipalidad de Yasy Cañy ocds-03ad3f-434270-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-yasy-cany/",
          "How": "Single bid open",
          "Stated reason": "Contratación Directa"
        },
        {
          "Date": "2023-03-10",
          "Buyer": "Municipalidad de Juan León Mallorquín ocds-03ad3f-422207-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-juan-leon-mallorquin/",
          "How": "Single bid open",
          "Stated reason": "Contratación Directa"
        },
        {
          "Date": "2022-11-02",
          "Buyer": "Municipalidad de Ypejhu ocds-03ad3f-420276-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-ypejhu/",
          "How": "Single bid open",
          "Stated reason": "Contratación Directa"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Paraguay",
        "url": "https://assay-systems.com/register/py/uncontested/"
      },
      {
        "name": "Municipalidad de Ypejhu",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-ypejhu/"
      },
      {
        "name": "Municipalidad de Yasy Cañy",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-yasy-cany/"
      },
      {
        "name": "Municipalidad de Gral. Francisco I. Resquin",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-gral-francisco-i-resquin/"
      },
      {
        "name": "Municipalidad de Villa Ygatimí",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-villa-ygatimi/"
      },
      {
        "name": "Municipalidad de Capiibary",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-capiibary/"
      },
      {
        "name": "Municipalidad de Yrybucuá",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-yrybucua/"
      },
      {
        "name": "Municipalidad de Itanará",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-itanara/"
      },
      {
        "name": "Municipalidad de Juan León Mallorquín",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-juan-leon-mallorquin/"
      },
      {
        "name": "Municipalidad de Villa Curuguaty",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-villa-curuguaty/"
      },
      {
        "name": "Municipalidad de Paso Barreto",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-paso-barreto/"
      },
      {
        "name": "Municipalidad de Ciudad del Este",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-ciudad-del-este/"
      },
      {
        "name": "Gobierno Departamental de San Pedro (S.PEDRO)",
        "url": "https://assay-systems.com/register/py/uncontested/b/gobierno-departamental-de-san-pedro-s-pedro/"
      },
      {
        "name": "Municipalidad de Puerto Pinasco",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-puerto-pinasco/"
      },
      {
        "name": "Gobierno Departamental de Concepción (CONCEPCIÓN)",
        "url": "https://assay-systems.com/register/py/uncontested/b/gobierno-departamental-de-concepcion-concepcion/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-PY-15E137218J",
    "cite_as": "Assay Systems, \"MARIO NUÑEZ ROLON*: public contracts won without a rival in Paraguay\", https://assay-systems.com/register/py/uncontested/s/mario-nunez-rolon/"
  }
}