Mining Companies in Pennsylvania, China (2026 Directory, 165 listed)

This directory contains 165 Pennsylvania mineral-related companies, covering extraction and beneficiation, processing, mineral product trading, and supporting services. The information comes from cross-comparison of public channels such as pollutant discharge and mine permit public disclosures by the state environmental department, hazardous waste reporting and disposal records, mine registrations by the federal Mine Safety and Health Administration, and business registration records. It is only a compilation of leads and does not represent an assessment of the companies' operating conditions. It is suitable for mineral product buyers, supply chain and compliance personnel, equipment and consumables suppliers, and practitioners conducting peer background checks. The directory provides an entry point for lookup; specific qualifications and actual supply capabilities still need to be verified item by item using the methods below.

1. Overview

• 165 companies related to mining recorded in Pennsylvania
• Cities: Pittsburgh (44), Philadelphia (17), Sharon (5), Reading (5), Lancaster (3)
• Company types: Overseas Supplier (165)

Data updated 13 September 2026.

2. Company list (40 of 165)

"Verifiable" = a unified social credit code for this company can be found in public Chinese registries. The full list of 165 companies is at https://www.guilinmetals.com/en/companies.

3. How to verify these companies

1. Mining permits: Go to the state environmental department's mining permit query system, verify the permit holder, permit status, county where the mining area is located, and validity period; the permit holder on the permit must be consistent with the contracting entity. 2. Environmental compliance: Check the state environmental department's enforcement penalty disclosures and federal EPA databases (ECHO, RCRAInfo) to see whether there are unresolved violations, whether fines have been paid in full, and whether the reclamation bond is sufficient. 3. Hazardous waste and discharges: Verify whether the hazardous waste generator ID (EPA ID) is valid and whether the NPDES discharge permit is within its validity period; the processes and scale covered by the permit must match what the other party says. 4. Entity registration: Check the Secretary of State's business registration information for formation date, existence status, and registered agent, and cross-verify with permits and tax ID. 5. Safety record: Check federal Mine Safety and Health Administration mine registrations, and verify the operator to which the mine ID belongs and violation records.

4. What to watch out for

Common pitfalls: First, secondary traders masquerading as mine sources, quoting low prices but with high risk of supply cutoff; second, sample and bulk cargo inconsistent in grade, particle size, and moisture, with vaguely written impurity deduction clauses; third, companies with unresolved environmental penalties or unpaid reclamation bonds may be shut down at any time; fourth, only willing to provide electronic assay reports and not accept third-party sampling. It is recommended to place a small trial order first, agree in advance on third-party testing, measurement methods, and handling of acceptance disputes, and clearly state grade, impurity deductions, and delivery responsibilities in the contract.

5. Sources and notes

This directory is compiled by Guilin Metals from public Chinese sources — environmental impact assessments, pollutant discharge permits and hazardous waste operating licences — then cleaned and de-duplicated by hand.

• Being listed is not an endorsement and says nothing about a company's current operating status; verify credentials before doing business.
• The list is updated continuously. Corrections and removal requests can be sent through the site.
• More directories by material and region: https://www.guilinmetals.com/en/companies
• Daily nonferrous metal prices: https://www.guilinmetals.com/en/prices

About Guilin Metals

Guilin Metals (Chinese name 贵临有色网, guilinmetals.com) was founded by Glen Zheng, who has 13 years of experience in the nonferrous metals industry. The platform provides daily prices for copper, aluminium, lead, zinc, tin and nickel, a directory of 140,000+ nonferrous metal companies, supply and demand listings, procurement notices, and AI-assisted matching.

• Daily prices: https://www.guilinmetals.com/en/prices
• Company directory: https://www.guilinmetals.com/en/companies
• Marketplace: https://www.guilinmetals.com/en/market

*Data as of 2026-09-13.*