Industries › NAICS 327
Nonmetallic Mineral Product Manufacturing
NAICS subsector 327. OSHA inspections, injury summaries, Wage and Hour cases and OFLC filings for employers classified in the subsector.
Nonmetallic Mineral Product Manufacturing (NAICS 327) accounts for 8,800 OSHA inspections since 2016, 1.1% of all inspections, with $48M in current penalties ($5,433 per inspection; all industries $3,754).
Wage and Hour Division cases concluded in the industry number 647, with $9.5M in back wages agreed to pay. Employers in the industry filed 1,028 labor condition applications and 519 PERM applications in the fiscal years covered.
3,694 establishments reported 2025 injury summaries: a total recordable case rate of 3.1 per 100 full-time workers, close to the 3.5 across all reporting establishments; the median reporting establishment has a rate of 2.4 (quartiles 0.0–5.4).
OSHA inspections and citations
Citations may be contested; the status shown reflects the record at the data date. Enforcement data through 14 Sep 2026.
| Measure | NAICS 327 | All industries |
|---|---|---|
| Citations per inspection | 2.9 | 1.9 |
| Current penalty per inspection | $5,433 | $3,754 |
| Share of all inspections | 1% | 100% |
Most-cited standards
| Standard | Subject | Citations |
|---|---|---|
| 1910.134 | Respiratory protection | 2,976 |
| 1910.1053 | Respirable crystalline silica | 2,438 |
| 1910.1200 | Hazard communication | 2,259 |
| 1910.178 | Powered industrial trucks | 1,406 |
| 1910.147 | The control of hazardous energy (lockout/tagout) | 1,368 |
| 1910.305 | Electrical, wiring methods, components and equipment | 794 |
| 1910.212 | Machinery and machine guarding, general requirements | 705 |
| 1910.95 | Occupational noise exposure | 671 |
| 1910.303 | Electrical, general requirements | 616 |
| 1910.132 | Personal protective equipment, general requirements | 461 |
Employers with the most inspections
| Employer | City | Inspections |
|---|---|---|
| Fuyao Glass America Inc. | Moraine | 20 |
| Consumers Concrete Corporation | Kalamazoo | 16 |
| Oldcastle APG South, INC | Orlando | 13 |
| Anchor Glass Container Corporation | Tampa | 12 |
| Gallo Glass Company | Modesto | 12 |
| Mutual Materials Co | Lacey | 12 |
| Acme Brick Company | Fort Worth | 11 |
| Caesarstone Technologies USA, Inc. | Richmond Hill | 11 |
| Carlex Glass America, LLC | Nashville | 11 |
| Gentex Corporation | Zeeland | 11 |
| Ingram Readymix, Inc. | San Antonio | 11 |
| ORCO Block & Hardscape | Riverside | 11 |
| Tindall Corporation | Petersburg | 11 |
| Angelus Block Co., Inc | Sun Valley | 10 |
| CEMEX Construction Materials Florida, LLC | West Palm Beach | 10 |
| Cemex, Inc. | Gibsonton | 10 |
| Central Valley Concrete, Inc. | Merced | 10 |
| Elementis Specialties, Inc. | Newberry Springs | 10 |
| SESCO Cement Corp. | Houston | 10 |
| Techo-Bloc Corp | Pen Argyl | 10 |
The list names employers that have a page on this site (organisations above the size floor); the totals above count every record in the files.
Injuries Form 300A summaries
Establishments submit their own Form 300A summaries; OSHA publishes the data as submitted and does not verify it. Rates are per 100 full-time workers.
Injury-rate distribution, 2025
Total recordable case rates across 3,068 establishments with at least 20,000 hours worked; the pooled rate uses all 3,694 reporting establishments' hours and cases.
| Year | Establishments | Employees | Recordable cases | TRC rate | DART rate | Median establishment |
|---|---|---|---|---|---|---|
| 2023 | 3,838 | 330,184 | 9,668 | 3.6 | 2.4 | 2.9 |
| 2024 | 3,644 | 584,250 | 8,264 | 3.3 | 2.2 | 2.6 |
| 2025 | 3,694 | 435,149 | 7,264 | 3.1 | 2.1 | 2.4 |
Labor Wage and Hour Division
Concluded compliance actions since fiscal year 2005; amounts are back wages the employer agreed to pay, as recorded at case conclusion. Data through 15 Jun 2026.
Acts
| Act | Violations | Back wages |
|---|---|---|
| Fair Labor Standards Act | 9,384 | $8.5M |
| Davis-Bacon and Related Acts | 390 | $441K |
| H-2B provisions | 260 | $375K |
| Family and Medical Leave Act | 1,886 | $100K |
| Service Contract Act | 65 | $42K |
| Consumer Credit Protection Act | 4 | $896 |
| Employee Polygraph Protection Act | 3 | $854 |
| FLSA child labor provisions | 49 | $0 |
| Contract Work Hours and Safety Standards Act | 42 | $0 |
| Walsh-Healey Public Contracts Act | 1 | $0 |
Employers with the largest back wages
| Employer | City | Back wages |
|---|---|---|
| CEMEX, Inc. | Houston | $1,518,582 |
| Aggregate Industries | Broomfield | $637,129 |
| Redi-Mix | Euless | $338,446 |
| U.S. Granite Corporation | Rancho Cordova | $338,295 |
| The Stone Studio, LLC | Chantilly | $127,813 |
| Cemex, Inc. | Gibsonton | $81,488 |
| 3M Company | Cumberland | $70,000 |
| All Granite & Marble Corp. | Ridgefield Park | $66,936 |
| Granite Masters, Inc. | Suwanee | $52,510 |
| International Stone Gallery | Lockport | $48,879 |
| Sherman Industries | Birmingham | $40,476 |
| Distinctive Marble & Granite | Plain City | $35,536 |
| Rio Stone Products, Inc. | McAllen | $31,530 |
| Carstin Brands, LLC | Arthur | $27,711 |
| P-D Valmiera Glass USA Corp. | Dublin | $27,491 |
The list names employers that have a page on this site (organisations above the size floor); the totals above count every record in the files.
Immigration OFLC labor condition applications and PERM
Employer-specific case information was provided to OFLC by employers who submitted foreign labor certification applications. These are not employer responses to the Bureau of Labor Statistics' survey. Data through 30 Jun 2026.
H-1B applications by fiscal year
PERM applications by fiscal year
Employers with the most H-1B applications
| Employer | City | Applications |
|---|---|---|
| Fuyao Glass America Inc. | Moraine | 158 |
| Corning Incorporated | Corning | 82 |
| Kohler Company | Kohler | 60 |
| Heidelberg Materials US, Inc. | Irving | 23 |
| Fuyao Automotive North America, Inc. | Plymouth | 22 |
| James Hardie Building Products, Inc. | Chicago | 22 |
| AGCO Corporation | Duluth | 21 |
| Anchor Glass Container Corporation | Tampa | 18 |
| Sibelco North America Inc. | Charlotte | 16 |
| CertainTeed Gypsum, Inc. | Malvern | 15 |
| Gentex Corporation | Zeeland | 15 |
| Ardagh Glass Inc. | Indianapolis | 14 |
| Dal-Tile, LLC | Dallas | 14 |
| Diamond Foundry Inc. | South San Francisco | 13 |
| Doka USA, Ltd. | Kenilworth | 13 |
The list names employers that have a page on this site (organisations above the size floor); the totals above count every record in the files.
Questions and answers
Which employers in Nonmetallic Mineral Product Manufacturing have the most OSHA inspections?
Fuyao Glass America Inc. (20), Consumers Concrete Corporation (16), Oldcastle APG South, INC (13)
What is the injury rate in Nonmetallic Mineral Product Manufacturing?
Establishments reporting for 2025 had a pooled total recordable case rate of 3.1 per 100 full-time workers; the median reporting establishment's rate is 2.4 with quartiles 0.0 to 5.4.
How many H-1B applications come from Nonmetallic Mineral Product Manufacturing?
1,028 labor condition applications in fiscal years 2025–2026 and 519 PERM applications.
How much in back wages did the Wage and Hour Division find due in Nonmetallic Mineral Product Manufacturing?
$9,503,594 agreed to pay across 647 concluded cases since fiscal year 2005.
Industry is the NAICS code on each record (the most common code where an employer's sources differ), grouped at the three-digit subsector. Sources: DOL enforcement data, OSHA ITA, OFLC disclosure data; see data sources and methodology.