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NAICS Code· 212399

NAICS 212399: All Other Nonmetallic Mineral Mining

NAICS 212399 - All Other Nonmetallic Mineral Mining covers the extraction of nonmetallic minerals that do not fall under specific categories like sand, gravel, or limestone. This includes the mining of industrial minerals such as phosphates, sulfur, potash, and various specialty minerals used in chemical manufacturing, agriculture, and high-tech industrial applications.

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Contract Opportunities

Active solicitations and awarded contracts classified under NAICS 212399 — All Other Nonmetallic Mineral Mining.

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NAICS 212399 FAQ

Frequently Asked Questions

NAICS code 212399 stands for All Other Nonmetallic Mineral Mining. It is a North American Industry Classification System code used by the federal government to classify business activity for procurement and contracting purposes.

Recently Posted in All Other Nonmetallic Mineral Mining

#57 Washed Non-Calcium Carbonate Stone SupplierThis subcontract involves the supply of 26,000 tons of #57 washed non-calcium carbonate stone for landfill projects in Franklin County, Virginia. The supplier is responsible for mining, processing, and washing granular material to meet specific leachate collection layer requirements, ensuring the stone is free of calcium carbonate to prevent system clogging. To qualify, the supplier must pass a physical facility inspection by Franklin County to verify their production capabilities. The solicitation was posted on September 14, 2026, with a response deadline of October 7, 2026.

Franklin County

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DEADLINE

Solicitation # 25-0268-PW

The City of Florissant, Missouri, is soliciting bids under solicitation number 25-0268-PW for the supply of bulk rock salt (sodium chloride) to be used as a deicer. The contract covers a performance period from November 15, 2026, through November 14, 2027, with deliveries made on an as-needed basis to the Florissant Public Works Complex. The required material must be Type 1, Grade 1 sodium chloride with a minimum chemical composition of 95.0 percent NaCl, treated with an anti-caking agent, and delivered in a free-flowing, clean, and usable condition within one to three days after an order is placed. Bidders must submit their proposals electronically via the OpenGov portal by October 1, 2026. Key submission requirements include a bid deposit of at least 5 percent of the bid amount and a guarantee of the total bid price for 60 days. The successful vendor must provide a performance bond equal to 100 percent of the contract price and a certificate of insurance for at least 1,000,000 dollars naming the City as an additional insured. Compliance mandates include the submission of a Work Authorization Affidavit for E-Verify, certification against boycotts of Israel, and confirmation of efforts to use American-made products. Payment is processed within 30 days of approval by the Director, provided that invoices are submitted on company letterhead and accompanied by certified payroll records.

POSTED

DEADLINE

Railroad Ballast Supply

Texas Department of Transportation

POSTED

CLOSED

Aggregate SupplyGarney Pacific, Inc. is seeking a subcontractor for the supply of construction aggregates, specifically gravel, sand, and crushed stone, to be used for site preparation and concrete mix. This opportunity is categorized under NAICS code 212399 and is open to various small business set-asides, including Small Disadvantaged, Women-Owned, HUBZone, and Veteran-Owned small businesses. The solicitation was posted on August 13, 2026, with a response deadline of August 27, 2026. Interested parties must submit their proposals by this date to be considered for the subcontract.

Garney Pacific, Inc.

POSTED

about 1 month ago

CLOSED

Alternative Daily Cover (ADC) Material Supplier

POSTED

about 1 month ago

CLOSED

Crushed Stone and Riprap Supply

W2SD Endist New England

POSTED

about 1 month ago

CLOSED

Material Supply: Aggregate and Base Materials

Henderson County Public Schools

POSTED

about 1 month ago

CLOSED

Supply of Open Graded Aggregate (OGA)The contract calls for the supply of open graded aggregate material suitable for use in drainage layers and base courses, to be delivered to Greene County as needed. The material must meet technical specifications for permeability and structural support, ensuring proper water infiltration and load-bearing capacity for transportation infrastructure applications. The solicitation is issued under the NAICS code 212399 and is classified as a subcontract, indicating it is part of a larger procurement effort managed by the North Carolina Department of Transportation. The solicitation was posted on July 28, 2026, with responses due by August 11, 2026. While the exact delivery locations and quantities are not specified in the data, performance is expected to occur within Greene County, and suppliers must be prepared to respond to dynamic demand based on project needs. No set-aside provisions are indicated, and the contract is open to qualified subcontractors who can reliably deliver compliant aggregate material on a just-in-time basis to support ongoing or future transportation construction or maintenance activities.

Department of Transportation

POSTED

about 2 months ago

CLOSED

about 1 month ago

Supply of Coarse Aggregate (Class 6 Stone)The contract calls for the furnish and delivery of coarse aggregate classified as Class 6 stone to support road base and construction applications at a site in Greene County. The work is being procured under a subcontract arrangement by the North Carolina Department of Transportation with a solicitation posted on July 28, 2026, and responses required by August 11, 2026. The NAICS code 212399 indicates the nature of the industry involves other nonmetallic mineral mining and quarrying, aligning with the production and supply of this aggregate material. The place of performance is specified as Greene County though exact location details are not provided, and all materials must meet Class 6 specifications for use in infrastructure projects. While no point of contact or full address details are listed, the procurement is accessible through a public portal linked in the contract data for further inquiry and submission of proposals.

Department of Transportation

POSTED

about 2 months ago

CLOSED

about 1 month ago

Topsoil Supply and PlacementThe contract pertains to the supply and placement of off-site topsoil for landscaping and site restoration purposes, encompassing screening, spreading, and compaction services to ensure proper soil preparation and integration into the designated areas. This subcontract is open for bidding with a response deadline of August 27, 2026, and was posted on July 27, 2026, under the NAICS code 212399, which classifies it within other mining support activities. The work is being procured by the Iowa agency with no specific location or point of contact provided, and all performance is expected to occur within the state under unspecified site conditions. Interested parties must submit proposals through the designated online portal by the specified deadline.

POSTED

about 2 months ago

CLOSED

Aggregate and Base Material Supply

POSTED

about 2 months ago

CLOSED

about 2 months ago

Aggregate SupplyThe contract calls for the supply of Type 2B cover aggregate that meets specified quality standards for use in asphalt surface treatment applications. This is a subcontract classified as a Total Small Business Set-Aside under the SBA program, ensuring that only small business concerns are eligible to bid. The NAICS code 212399 identifies the work as other mining activities, reflecting the sourcing and processing nature of the aggregate material. Performance of the contract is required in Crofton, Nebraska with a zip code of 68730, and the solicitation is managed by the Department of Defense through its W071 Endist Omaha office. The opportunity was posted on July 16, 2026, with a firm response deadline of August 18, 2026, at 7:00 PM. All proposals must comply with the technical and quality specifications for the aggregate to ensure suitability for surface treatment applications in defense-related infrastructure projects.

W071 Endist Omaha

POSTED

CLOSED

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