| BCBasalite Concrete Products - Selma | Selma | CA | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| BMBuilding Materials Mfg CORP (dba Gaf) | Shafter | CA | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| CPCabazon Plant 11 | Cabazon | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| CPCal Portland Cement | Oro Grande | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| CCCemex Construction Materials Pacific LLC | Lemoore | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCemex Construction Materials Pacific Llc- Cemex Victorville -river Plant | Victorville | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| CFCemex Farmersville Plant | Farmersville | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCertainteed, Chowchilla Plant | Chowchilla | CA | Nonmetallic Mineral Product Manufacturing327993 | — | ◐ LIKELY ACTIVE |
| CPCorona Plant 30 | Corona | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| CBCustom Building Products INC | Bell | CA | Nonmetallic Mineral Product Manufacturing327999 | 100-499 | ◐ LIKELY ACTIVE |
| CBCustom Building Products - Sckc Stockton Ca | Stockton | CA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| ECEl Cajon Plant 29 | El Cajon | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| EPEscondido Plant 36 | Escondido | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| FPFoley Products Company - Napa | American Canyon | CA | Nonmetallic Mineral Product Manufacturing327332 | 1-19 | ◐ LIKELY ACTIVE |
| GGGallo Glass Company | Modesto | CA | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| GAGcp Applied Technologies INC | Santa Ana | CA | Nonmetallic Mineral Product Manufacturing327420 | 1-19 | ◐ LIKELY ACTIVE |
| HQHayward Quartz Technology | Fremont | CA | Nonmetallic Mineral Product Manufacturing327212 | 100-499 | ◐ LIKELY ACTIVE |
| HPHesperia Plant 31 | Hesperia | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| IPIrwindale Plant 13 | Irwindale | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| ICItt Cannon LLC | Santa Rosa | CA | Nonmetallic Mineral Product Manufacturing327110 | — | ◐ LIKELY ACTIVE |
| JHJames Hardie Building Products | Fontana | CA | Nonmetallic Mineral Product Manufacturing327390 | 100-499 | ◐ LIKELY ACTIVE |
| LCLivingston's Concrete Service INC | Rancho Cordova | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| MSMid State Concrete Products LLC | Santa Maria | CA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| MPMurrieta Plant 27 | Murrieta | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| NHNorth Hollywood Plant 22 | North Hollywood | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| OMOtay Mesa Plant 28 | Otay Mesa | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| PPPasadena Plant 14 | Pasadena | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| PMPetrochem Materials Innovation LLC | South Gate | CA | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| PPPomona Plant 5 | Pomona | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| QCQuikrete - Corona, Ca Plant | Corona | CA | Nonmetallic Mineral Product Manufacturing327390 | 100-499 | ◐ LIKELY ACTIVE |
| RPRedlands Plant 3 | Redlands | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| RPRiverside Plant 1 | Riverside | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| RRRobertson's Ready Mix Carroll Canyon Plant 32 | San Diego | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SFSanta Fe Springs Plant 10 | Santa Fe Springs | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSun City Plant 8 | Sun City | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| TPThousand Palms Plant 26 | Thousand Palms | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| USUnited States Tile CO Corona | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| ARAa Ready Mixed Concrete | Gardena | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| ARAlliance Ready Mix | Arroyo Grande | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| ARAssociated Ready Mix Concrete | Oxnard | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| BRBoral Roofing | French Camp | CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| BSBoral Stone Products LLC | American Canyon | CA | Nonmetallic Mineral Product Manufacturing327110 | — | ◐ LIKELY ACTIVE |
| CCCalportland Cement Plant | Redding | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| CCCalportland CO Alameda Plant | Los Angeles | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCalportland Company | Fresno | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCalportland CO Paso Robles Plant | Templeton | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCalportland CO San Luis Obispo | San Luis Obispo | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCalportland CO Vista Chino Plant | Thousand Palms | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CPCa Portland Cement CO | Mojave | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| CPCatalina Pacific Concrete CO El Segundo Plant | El Segundo | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |