| CCCemex Concretos INC | Humacao | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCemex Concretos, INC. (formerly, Ready Mix, Plant 20) | Guaynabo | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JFJ. F. Asociados, INC. | Juncos | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| MAMaster Aggregates Carolina | Carolina | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| MAMaster Aggregates Plant 5 | Caguas | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| MCMaster Concrete Plant 5 | San Juan | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OSOriental Sand & Gravel | Yabucoa | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| OIOwens Illinois De Pr | Vega Alta | PR | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| PRPuerto Rico Aggregates | Carolina | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| APAtlantic Pipe CORP | Juana Diaz | PR | Nonmetallic Mineral Product Manufacturing327332 | 20-99 | ◇ UNVERIFIED |
| CLComercial Lapino | San Sebastian | PR | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◇ UNVERIFIED |
| CICristalex INC | Toa Baja | PR | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ◇ UNVERIFIED |
| HCHormigonera Chaparro INC Dba Expreso Ready Mix | Aguada | PR | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◇ UNVERIFIED |
| HOHormigonera Oriental | Isabela | PR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| MCMoca Concrete Poles INC. | Moca | PR | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◇ UNVERIFIED |
| APAtlantic Pipe CORP | Santurce | PR | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| BABetteroads Asphalt Corporation Planta 10 | Manati | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSCantera San Antonio | Guaynabo | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CDCanteras De Puerto Rico | Guaynabo | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCCemex Concretos INC | Isabela | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcretera S Demetri | Vieques | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CMConcretos Metropolitanos LLC | Guaynabo | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CDCristaleria Del Sur | Ponce | PR | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| CLCristaleria La Vega INC | Barranquitas | PR | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| EDE D H CORP. | Carolina | PR | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| EDE D H CORP. | Carolina | PR | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| HMHormig Mayaguezana | San German | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HIHormigonera INC Pl7 | Fajardo | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NSNative Stone INC. | Vega Baja | PR | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PDProductora De Agregados, INC | Vega Baja | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| PRPuerto Rico Stone | Vega Baja | PR | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| QCQuality Concre Mix INC. | Naranjito | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RBRocks By Ninham INC | Toa Baja | PR | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SHSolo Holding LLC | Isabela | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SRStar Ready Mix INC | Cidra | PR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| TEToledo Engineering CORP. | Ponce | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| VMV&p Management and Development V.p.m.d., L.l.c. | Moca | PR | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
