NAICS 213113 Quarterly Industry Report
Support Activities for Coal Mining
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 213113Sector: Mining, Quarrying, and Oil and Gas Extraction (21)Updated: Q1 2026
About This Report
This industry profile for Support Activities for Coal Mining (NAICS 213113) draws on data from the U.S. Census Bureau[9], U.S. Energy Information Administration[6], Bureau of Labor Statistics[10], and SBA size standards database[7]. Published by Fair Market Value and updated quarterly, it provides valuation professionals, mining sector analysts, and coal industry investors with current market data. All quantitative claims are sourced to publicly verifiable databases.
Industry Snapshot
Key metrics for the support activities for coal mining industry.
NAICS Sector
21
Mining, Quarrying, and Oil and Gas Extraction
Industry Definition & Overview
Support Activities for Coal Mining (NAICS 213113) encompasses establishments primarily engaged in providing support activities for coal mining on a contract or fee basis per the U.S. Census Bureau[5]. Activities include contract overburden stripping and removal at surface mines, drilling and blasting services, mine construction and development, reclamation services, and other specialized coal mining support work performed for mine operators.
Contract mining services allow coal mine operators to outsource capital-intensive overburden removal and related activities, reducing fixed equipment and workforce costs. Demand for contract mining support tracks directly with coal production levels, which totaled 512.5 million short tons in 2024 per EIA[6] annual coal data, continuing a multi-year decline driven by natural gas and renewable energy competition. Surface coal mining operations in the Powder River Basin and Appalachian region represent the primary market for contract stripping services. Underground mine support includes shaft sinking, drift development, ventilation construction, and equipment installation. Mine reclamation services have grown as a revenue source as mine closures increase and operators fulfill SMCRA-mandated land restoration obligations.
Per the SBA Table of Size Standards[7], the size standard is $22 million in average annual receipts. The Mine Safety and Health Administration[8] enforces safety standards for contract mining companies under the same Federal Mine Safety and Health Act requirements that apply to mine operators. Contract miners must maintain independent safety programs and training records for their employees working at client mine sites.
What's Included in This Industry
- Contract overburden stripping and removal
- Drilling and blasting services for surface coal mines
- Underground mine shaft sinking and drift development
- Ventilation system construction and installation
- Mine road construction and maintenance
- Coal mine reclamation and revegetation services
- Equipment hauling and mobilization for mine operators
- Mine dewatering and water management services
- Exploration drilling and core sampling for coal deposits
- Mine safety equipment installation and maintenance
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Sector | Mining, Quarrying, and Oil and Gas Extraction | 21 |
| Subsector | Support Activities for Mining | 213 |
| Industry Group | Support Activities for Mining | 2131 |
| NAICS Industry | Support Activities for Mining | 21311 |
| National Industry | Support Activities for Coal Mining | 213113 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 212114 | Surface Coal Mining | Surface Coal Mining operators hire contract support companies to perform overburden stripping, drilling, blasting, and hauling activities, with contract mining arrangements allowing mine operators to scale workforce and equipment without fixed capital investment in stripping equipment fleets |
| 212115 | Underground Coal Mining | Underground Coal Mining operators engage support service companies for shaft construction, drift development, ventilation installation, and specialized equipment work, with contract underground construction firms providing skills and equipment not maintained in-house by mine operators |
| 213114 | Support Activities for Metal Mining | Support Activities for Metal Mining provides similar contract mining services for metal mines, with both coal and metal mining support sharing common heavy equipment types, drilling and blasting expertise, and MSHA regulatory compliance requirements for contractor safety programs |
| 333131 | Mining Machinery and Equipment Manufacturing | Mining Machinery and Equipment Manufacturing produces the draglines, excavators, haul trucks, and drilling equipment that contract coal mining support companies purchase or lease for overburden removal and mine development operations |
| 237310 | Highway, Street, and Bridge Construction | Highway, Street, and Bridge Construction uses heavy earthmoving techniques and equipment common to surface mine stripping, with haul road construction at coal mines requiring similar grading, drainage, and surfacing work performed on public highway projects |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Pennsylvania | 21.5% | 37 |
| 2 | Kentucky | 17.4% | 30 |
| 3 | West Virginia | 15.1% | 26 |
| 4 | Virginia | 10.5% | 18 |
| 5 | Ohio | 7.0% | 12 |
| 6 | Texas | 5.8% | 10 |
| 7 | Alabama | 4.1% | 7 |
| 8 | Indiana | 3.5% | 6 |
| 9 | Georgia | 2.9% | 5 |
| 10 | Colorado | 2.3% | 4 |
% Of Establishments
0%
22%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
16
Total SBA Loans
$14.6M
Total Loan Volume
$913K
Average Loan Size
7 yrs
Average Loan Term
8.75%
Average Interest Rate
1,048
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: Per the SBA Table of Size Standards[7], Support Activities for Coal Mining (NAICS 213113) has a size standard of $22 million in average annual receipts for federal contracting purposes. SBA lending programs[11] support heavy equipment acquisition, mine development contracts, and working capital for qualifying coal mining support firms. Eligible businesses can access SBA 7(a) loans[12] for working capital, equipment, and acquisition financing, while 504 loans[13] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Republic Bank & Trust Company | 8 | $13.8M | $1.7M |
| 2 | Shoreham Bank | 8 | $800K | $100K |
Frequently Asked Questions
Common questions about this industry.
What is NAICS 213113?
NAICS 213113 covers support activities for coal mining including contract stripping, drilling, blasting, mine construction, and reclamation per the U.S. Census Bureau[5]. Coal mine operators who perform their own mining are classified under NAICS 212114 or 212115.
What is contract stripping?
Contract stripping is the outsourced removal of overburden (rock and soil above coal seams) by specialized contractors at surface coal mines. Mine operators hire contract strippers to reduce fixed equipment costs and access specialized large-capacity earthmoving equipment for overburden removal operations.
What is the SBA size standard?
Per the SBA size standard[7], the threshold is $22 million in average annual receipts for federal small business contracting eligibility and SBA lending products for coal mining support firms.
How does declining coal production affect support services?
U.S. coal production totaled 512.5 million short tons in 2024, down 11.3% year-over-year per EIA[6] data. Declining production reduces demand for contract stripping and mine development services while increasing demand for mine closure and reclamation work.
What safety requirements apply to contract miners?
MSHA[8] requires contract mining companies to maintain independent safety programs, training records, and injury reporting under the Federal Mine Safety and Health Act. Contract miners working at client mine sites face the same safety standards as mine operator employees.
What is mine reclamation?
Mine reclamation restores mined land to approximate original contour and productive use as required by the Surface Mining Control and Reclamation Act (SMCRA). Reclamation services include regrading, topsoil replacement, revegetation, and water management system installation at closed or completed mine sections.
What equipment do contract miners use?
Contract mining support firms operate draglines, large hydraulic excavators, haul trucks, drill rigs, and grading equipment for overburden removal and mine development work. Equipment fleet capacity and condition determine contractor competitiveness for large-scale surface mine stripping contracts.
Can construction companies perform mining support?
Heavy civil construction and site preparation firms sometimes provide mining support services using similar earthmoving equipment and techniques. However, MSHA training, mine-specific safety programs, and specialized mining experience create barriers to entry that separate dedicated mining contractors from general construction firms.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]U.S. Census Bureau census.gov
- [6]EIA eia.gov
- [7]SBA Table of Size Standards sba.gov
- [8]Mine Safety and Health Administration msha.gov
- [9]U.S. Census Bureau data.census.gov
- [10]Bureau of Labor Statistics bls.gov
- [11]SBA lending programs sba.gov
- [12]SBA 7(a) loans sba.gov
- [13]504 loans sba.gov
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