NAICS Code 212231: Lead Ore and Zinc Ore Mining

National industry Retired in 2017

Definition

This U.S. industry comprises establishments primarily engaged in developing the mine site, mining, and/or beneficiating (i.e., preparing) lead ores, zinc ores, or lead-zinc ores. As of 2017, this NAICS code is no longer in use. It has been replaced by 212230.

Code facts

NAICS codes and definitions come from the U.S. Census Bureau.

Business activities under NAICS 212231

  • Blende (zinc) mining and/or beneficiating
  • Calamine mining and/or beneficiating
  • Cerussite mining and/or beneficiating
  • Galena mining and/or beneficiating
  • Lead ore mine site development for own account
  • Lead ore mining and/or beneficiating
  • Lead-zinc ore mining and/or beneficiating
  • Smithsonite mining and/or beneficiating
  • Sphalerite mining and/or beneficiating
  • Willemite mining and/or beneficiating
  • Zinc ore mine site development for own account
  • Zinc ores mining and/or beneficiating
  • Zinc-blende (sphalerite) mining and/or beneficiating
  • Zincite mining and/or beneficiating

Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.

Contract opportunities

Notice Posted Due
Zinc Anodes Award Notice · Naval Supply Systems Command (Navy) —

Size standard history

Federal Register rules that named this code

Final rule Published Effective
Small Business Size Standards: Industries With Employee Based Size Standards Not Part of Manufacturing, Wholesale Trade, or Retail Trade 81 FR 4436 · 3245-AG51
Small Business Size Standards; Adoption of Size Standards by 2002 North American Industry Classification System for Size Standards 67 FR 56905 · 3245-AF00
Small Business Size Regulations; Size Standards and the North American Industry Classification System 65 FR 30836

From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.

Quick answers

What is NAICS 212231?

NAICS 212231 is Lead Ore and Zinc Ore Mining, a national industry in NAICS 21, Mining, Quarrying, and Oil and Gas Extraction.

Is NAICS 212231 still used?

NAICS stopped using 212231 in 2017. Older contracts still carry it.

When did the size standard for NAICS 212231 last change?

The most recent Federal Register rule on record that names NAICS 212231 in the SBA's size standards is "Small Business Size Standards: Industries With Employee Based Size Standards Not Part of Manufacturing, Wholesale Trade, or Retail Trade" (81 FR 4436), published Jan 26, 2016 and effective Feb 26, 2016.

What is the latest contract opportunity under NAICS 212231?

The latest contract opportunity under NAICS 212231 is Zinc Anodes, award notice from Naval Supply Systems Command (Navy), posted January 29, 2010.

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