| ID | Facility Name | Address |
|---|---|---|
| TC | Technical Center | 6715 South Sprinkle Road |
| DB | Dearborn Office | 15101 North Commerce Dr. |
| BA | Build Area and Tool Room | 6615 South Sprinkle Road |
| P01 | Summit Plant | 4750 Executive Dr. |
| P02 | Valley Plant | 3140 Kilgore Rd. |
| P03 | Syntech Plant | 1211 Progress St. |
| P04 | Summit Componentes de Mexico | Matamoros, Mexico |
| P05 | East Plant | 6717 S Sprinkle Rd. |
| P06 | Mount Sterling Plant | 160 Clarence Dr. |
| P08 | Vicksburg Plant | 115 S. Leja Drive |
| P09 | Elizabethtown Plant | 2201 West Park Rd. |
| P10 | Chicago Park Plastics | 12359 S. Burley Ave. |
| P11 | Shelbyville Plant | 100 Summit Dr. |
| P13 | Summit Polymers, Nanjing | Nanjing, China |