{
  "@context": [
    "https://schema.org",
    {
      "ec": "https://entitycodes.org/vocab#"
    }
  ],
  "@type": "DefinedTerm",
  "@id": "https://entitycodes.org/naics/212230/",
  "identifier": "212230",
  "name": "Copper, Nickel, Lead, and Zinc Mining",
  "description": "This industry comprises establishments primarily engaged in developing the mine site, mining, and/or beneficiating (i.e., preparing) ores valued chiefly for their copper, nickel, lead, or zinc content.  Beneficiating includes the transformation of ores into concentrates.  Establishments primarily engaged in recovering copper concentrates by the precipitation, leaching, or electrowinning of copper ore are included in this industry.",
  "url": "https://entitycodes.org/naics/212230/",
  "inDefinedTermSet": {
    "@type": "DefinedTermSet",
    "name": "NAICS 2022",
    "url": "https://entitycodes.org/naics/"
  },
  "sameAs": [
    "https://www.census.gov/naics/?input=212230&year=2022"
  ],
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "SBA size standard",
      "value": "1,400 employees",
      "unitText": "employees",
      "description": "13 CFR 121.201, as-of 2023-03-17"
    },
    {
      "@type": "PropertyValue",
      "name": "IRS PBA code",
      "value": "212200",
      "description": "IRS Principal Business Activity code (method: rolled-up)"
    },
    {
      "@type": "PropertyValue",
      "name": "US establishments",
      "value": 61,
      "description": "Census County Business Patterns 2023"
    }
  ],
  "ec:crosswalk": [
    {
      "system": "SIC 1987",
      "code": "1021",
      "title": "Copper Ores",
      "confidence": "chain",
      "via": "SIC1987:1021\u2192NAICS1997:212234\u21922002:212234\u21922007:212234\u21922012:212234\u21922017:212230\u21922022:212230",
      "url": "https://entitycodes.org/sic/1021/"
    },
    {
      "system": "SIC 1987",
      "code": "1031",
      "title": "Lead and Zinc Ores",
      "confidence": "chain",
      "via": "SIC1987:1031\u2192NAICS1997:212231\u21922002:212231\u21922007:212231\u21922012:212231\u21922017:212230\u21922022:212230",
      "url": "https://entitycodes.org/sic/1031/"
    },
    {
      "system": "SIC 1987",
      "code": "1061",
      "title": "Ferroalloy Ores, Except Vanadium",
      "confidence": "chain",
      "via": "SIC1987:1061\u2192NAICS1997:212234\u21922002:212234\u21922007:212234\u21922012:212234\u21922017:212230\u21922022:212230",
      "url": "https://entitycodes.org/sic/1061/"
    }
  ],
  "ec:provenance": {
    "definition": {
      "source": "US Census 2022 NAICS Manual",
      "type": "US gov \u2014 public domain"
    },
    "crosswalk": {
      "source": "Census NAICS\u2194SIC concordance",
      "method": "transitive chain (NOT direct)"
    },
    "sba_size_standard": {
      "source": "SBA Table of Size Standards (13 CFR 121.201)",
      "as_of": "2023-03-17"
    },
    "establishments": {
      "source": "Census County Business Patterns",
      "year": 2023
    }
  },
  "license": "https://www.usa.gov/government-works",
  "dateModified": "2026-07-21",
  "isPartOf": {
    "@type": "DefinedTerm",
    "identifier": "2122",
    "name": "Metal Ore Mining",
    "@id": "https://entitycodes.org/naics/2122/"
  }
}