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NAICS Code· 423520

Coal and Other Mineral and Ore Merchant Wholesalers

This industry comprises establishments primarily engaged in the merchant wholesale distribution of coal, coke, metal ores, and/or nonmetallic minerals (except precious and semiprecious stones and minerals used in construction, such as sand and gravel). Cross-References. Establishments primarily engaged in--Show more

NAICS 423520 – Coal and Other Mineral and Ore Merchant Wholesalers encompasses the wholesale distribution of coal, metallic ores, nonmetallic minerals, and related bulk materials to industrial, commercial, and government end-users. This sector serves as a critical link in the supply chain for energy generation, metallurgical processing, construction, and industrial manufacturing, where bulk mineral commodities are procured in large volumes and delivered via rail, truck, or barge.

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Active solicitations and awarded contracts classified under NAICS 423520 — Coal and Other Mineral and Ore Merchant Wholesalers.

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NAICS 423520 FAQ

Frequently Asked Questions

NAICS code 423520 covers Coal and Other Mineral and Ore Merchant Wholesalers. This industry comprises establishments primarily engaged in the merchant wholesale distribution of coal, coke, metal ores, and/or nonmetallic minerals (except precious and semiprecious stones and minerals used in construction, such as sand and gravel). Cross-References. Establishments primarily engaged in--

Recently Posted in Coal and Other Mineral and Ore Merchant Wholesalers

NAICS: 423520
New
DIBBS
Supply Chain and Material Sourcing for Electrical ContactsThe contract involves the procurement and traceability of raw materials including copper alloys and silver plating materials for use in electrical contacts, with strict adherence to DFARS supply chain risk requirements to ensure materials originate from approved sources and meet defense-grade standards. The subcontractor is responsible for end-to-end supply chain management, including sourcing, documentation, and verification of material origins to prevent counterfeit or non-compliant inputs, particularly critical for Department of Defense applications. This subcontract is issued under the Defense Logistics Agency, part of the Department of Defense, with the NAICS code 423520 indicating wholesale trade of electrical and electronic equipment. The contract was posted on July 13, 2026, and is linked to the award number SPE7M226V4326, though no specific place of performance or point of contact is provided. Compliance with federal defense sourcing regulations is mandatory, and the subcontractor must maintain full traceability of all materials from supplier to delivery, ensuring secure and resilient supply chains aligned with national security objectives.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 423520
Awarded
DIBBS
MOLYBDENUM DISULFIDThe Defense Logistics Agency has awarded a delivery order under contract SPE4AX16D9012 to ASRC FEDERAL FACILITIES LOGISTICS with CAGE code 79343 for the procurement of MOLYBDENUM DISULFIDE, identified by NSN 6810008161025 and PR 7017476958. The total contract value is set at $72.94, and the award was issued on July 13, 2026, under solicitation number SPE4A626FCPHE. This transaction is classified as a federal award with no set-aside designation and no assigned NAICS code. The performance location and point of contact details are not specified, but the contract originates from the Department of Defense and is administered through the DLA. The award notice was posted on DIBBS with a public link providing access to the procurement record.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 423520
New
DIBBS
Raw Material and Component Supply for Valve BlockThe contract involves the supply of raw metal stock including stainless steel, brass, and aluminum, along with critical subcomponents necessary for the manufacture of a valve block, all of which must meet stringent defense material standards. Each shipment must be accompanied by full traceability documentation and certified compliance with required military specifications to ensure material integrity and end-use reliability in defense applications. The work is structured as a subcontract under the Defense Logistics Agency, part of the Department of Defense, and falls under NAICS code 423520 for wholesale trade of metals and minerals. Performance is expected to support defense manufacturing operations without geographic specification, and all materials must adhere to the rigorous quality and documentation protocols mandated by federal defense procurement requirements.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 423520
New
DIBBS
Raw Material Supply for Valve SeatThis contract is for the supply of high-grade metal stock, including stainless steel, brass, or bronze billet and bar stock, specifically intended for use in fabricating valve seat components. The materials must meet stringent quality standards to ensure performance and reliability in critical defense applications. The agreement is structured as a subcontract under the Department of Defense, managed by the Defense Logistics Agency, with the NAICS code 423520 indicating wholesale trade of metal and metal ore merchant wholesalers. The contract was posted on July 13, 2026, and is linked to the award number SPE7M126V3087, with performance obligations tied to the broader defense supply chain but without a specified geographic location for delivery. The scope focuses exclusively on raw material provisioning, requiring precise material specifications and consistent availability to support downstream manufacturing processes without disruption.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 423520
New
DIBBS
Raw Material Supply for Aerospace ComponentsThe contract entails the supply of certified aerospace-grade raw materials including stainless steel, titanium, and specialty alloys specifically for the manufacturing of the Valve X Piston Assembly, with stringent requirements for full traceability and documentation of material origins and quality certifications. All materials must meet exacting industry standards to ensure performance and reliability in critical defense applications, and each batch must be accompanied by comprehensive paperwork verifying compositional integrity and compliance with aerospace specifications. This is a subcontract under the Defense Logistics Agency of the Department of Defense, classified under NAICS code 423520 for Metal and Mineral (Nonenergy) Merchant Wholesalers. The contract was posted on July 13, 2026, and performance is expected to support national defense manufacturing efforts without specific geographic constraints noted. The contractual obligations emphasize quality assurance, regulatory compliance, and the ability to maintain a verifiable chain of custody from supplier to finished component, ensuring alignment with stringent defense procurement protocols.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 423520
New
DIBBS
Supply of Raw Materials or BlanksThe contract requires the supply of alloy steel bar stock or pre-formed screw blanks that meet the stringent standards of ASTM A574, ensuring high strength and reliability for critical applications in defense systems. All materials must be fully traceable through official mill test reports, guaranteeing compliance with material composition, mechanical properties, and manufacturing processes. The deliverables are intended for final manufacturing use within the Department of Defense’s combat vehicles and armament programs, underscoring the critical nature of product integrity and quality control. The solicitation is classified as a subcontract under NAICS code 423520, indicating a focus on wholesale trade of metals and minerals. The place of performance is designated as New Cumberland, Pennsylvania, with a zip code of 17070-5002, and responses must be submitted by July 23, 2026, with the opportunity posted on July 12, 2026. While specific points of contact or set-aside details are not provided, the requirement is positioned within a DLA-managed procurement channel, signifying alignment with broader defense logistics frameworks and strict adherence to defense-grade material specifications.
LSO COMBAT VEHICLES AND ARMAMENT

POSTED

2 days ago

DEADLINE

in 9 days
View Details
NAICS: 423520
New
Federal
Marine-Grade Materials SupplyThe contract seeks the supply of high-strength, corrosion-resistant materials including marine-grade stainless steel, titanium, and advanced composites engineered for long-term submersion in ocean environments with a mandated five-year service life. These materials must maintain structural integrity and performance under sustained exposure to saltwater, high pressure, and biofouling conditions typical of deep-sea and coastal marine applications. The requirement is strictly for materials capable of withstanding extreme environmental stress without degradation, ensuring reliability for critical offshore and underwater infrastructure. This is a small business set-aside subcontract under the SBA’s Total Small Business Set-Aside program, classified under NAICS code 423520 for Metal and Metal Ore Merchant Wholesalers. The solicitation was posted on July 10, 2026, with responses due by July 22, 2026. The contracting agency is the U.S. Department of Commerce, NOAA, though specific performance location and point of contact details are not provided. All proposers must be certified small businesses and must demonstrate technical capability to deliver materials that meet exacting marine durability standards under the specified service life requirements.
Department Of Commerce Noaa

POSTED

4 days ago

DEADLINE

in 7 days
View Details
NAICS: 423520
New
Federal
Metals Distribution and Logistics for Federal ContractsThe contract entails the provision of integrated supply chain services for the sourcing, packaging, and delivery of copper and aluminum materials to NSWC Crane, Indiana under FOB Destination terms, ensuring full responsibility for transportation and delivery risks until the goods reach the designated facility. The work is structured as a subcontract under a Total Small Business Set-Aside, with the NAICS code 423520 indicating the focus on merchant wholesalers of metals and minerals, and all performance must be carried out by a qualified small business entity. The solicitation was posted on July 10, 2026, with a response deadline of July 24, 2026, and the place of performance is specifically identified by the zip code 47522, corresponding to the NSWC Crane location, where all delivered materials must be received and accepted. The Department of Defense, through its naval facility, is the contracting agency, requiring strict adherence to federal procurement standards and logistics protocols to support defense-related operations.
Nswc Crane

POSTED

4 days ago

DEADLINE

in 9 days
View Details
NAICS: 423520
New
SLED
Galvanized Steel Sheet Supply (26-Gauge)The contract involves the supply of 26-gauge galvanized steel sheets that meet ASTM standards, with the quantity sufficient to manufacture exactly 2,400 predator shields. Each batch of material must be accompanied by certified documentation verifying compliance with the specified ASTM requirements, ensuring quality and consistency throughout production. Delivery support is included to guarantee timely and accurate fulfillment of the order, with all materials expected to arrive in condition suitable for immediate use in shield fabrication. The solicitation is classified as a subcontract under NAICS code 423520, and it is issued by the South Carolina office of the Department of Natural Resources. The posting date is July 10, 2026, with a response deadline of August 7, 2026, providing potential vendors a five-week window to submit proposals. The place of performance and point of contact details are not specified, and the contract is accessible via the South Carolina Business Opportunities portal. No set-aside provisions apply, meaning the opportunity is open to all qualified suppliers regardless of business size or ownership classification.
Department Of Natural Resources

POSTED

5 days ago

DEADLINE

in 24 days
View Details
NAICS: 423520
Closed
Federal
Domestic Pipe Distribution and LogisticsThis contract entails the domestic sourcing of seamless steel pipe from authorized manufacturers to meet Buy American requirements, ensuring all materials are produced in the United States and comply with federal procurement standards. The successful bidder will be responsible for managing end-to-end logistics, including FOB destination delivery directly to U.S. Navy shipyards, with a primary performance location in Bremerton. The procurement is strictly limited to small businesses under a total small business set-aside as defined by the Small Business Administration, with NAICS code 423520 pertaining to merchant wholesalers of construction materials. All deliveries must align with stringent military specifications and timelines to support naval infrastructure needs, and compliance with federal acquisition regulations is mandatory throughout the supply chain.
DLA Maritime - Puget Sound

POSTED

5 days ago

CLOSED

4 days ago
View Details
NAICS: 423520
Awarded
DIBBS
ALUMINA AND MAGNESIThe Defense Logistics Agency awarded a delivery order under contract SPE2DX25D9900 to DMS PHARMACEUTICAL GROUP INC, identified by CAGE code 1UNB0, for the procurement of ALUMINA AND MAGNESI with NSN 6505016623715, priced at a total contract value of $10.76. The award was issued on July 8, 2026, under solicitation SPE2DP26F7232, with no set-aside designation or NAICS code specified. The item is procured under the Department of Defense, with no specific delivery location provided beyond the country code US, and no point of contact details listed. The order is accessible via the DIBBS portal under the provided UI link and reflects a minimal-value transaction typical of specialized material support within federal supply chains.
Defense Logistics Agency

POSTED

6 days ago

DEADLINE

N/A
View Details
NAICS: 423520
New
Federal
Towing Hardware Supply (Bridles, Lines, Shackles)The contract calls for the supply of certified towing bridles, emergency tow lines, shackles, and related rigging hardware that fully comply with U.S. Navy technical specifications. All items must be accompanied by complete pedigree documentation and validated test certifications to ensure traceability and quality assurance throughout the manufacturing and inspection process. The equipment is intended for critical maritime operations and must meet stringent military standards for durability, load capacity, and safety under extreme conditions. This is a subcontract opportunity posted by the Department of Defense through the MSC Norfolk office, with a response deadline of July 15, 2026. The North American Industry Classification System code 423520 indicates the focus on wholesale trade of merchant marine supplies and equipment. The place of performance and delivery details are unspecified in the data, but all hardware must be capable of deployment in Navy-operated environments. Bidders are expected to provide full compliance documentation and proof of adherence to all required military specifications without exception.
Mschq Norfolk

POSTED

6 days ago

DEADLINE

in about 19 hours
View Details

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