Polyethylene Manufacturers
| Manufacturer | Plant Location | Valid Through |
|---|---|---|
| Advanced Drainage Systems, Inc. | Bessemer City, NC, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Buena Vista, VA, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Findlay, OH (plant), US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Logan Township, NJ, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Ludlow, MA, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Muncy, PA, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Waverly, NY, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Wooster, OH, US | 12/31/2023 |
| Baughman Tile Co. | Paulding, OH, US | 12/31/2023 |
| Haviland Drainage Products Co. | Haviland, OH, US | 12/31/2023 |
| Lane Enterprises, Inc. | Wytheville, VA, US | 12/31/2023 |
| Soleno, Inc. | McAdam, New Brunswick, CA | 12/31/2023 |
| Soleno, Inc. | Saint-Jean-sur-Richelieu, Quebec, CA | 12/31/2023 |
Polypropylene Manufacturers
| Manufacturer | Plant Location | Valid Through |
|---|---|---|
| Advanced Drainage Systems, Inc. | Bessemer City, NC, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Findlay, OH (plant), US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Muncy, PA, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Waverly, NY, US | 12/31/2023 |
| Advanced Drainage Systems, Inc. | Wooster, OH, US | 12/31/2023 |
| Haviland Drainage Products Co. | Haviland, OH, US | 12/31/2023 |
| Lane Enterprises, Inc. | Shippensburg, PA, US | 12/31/2023 |
| Lane Enterprises, Inc. | Wytheville, VA, US | 12/31/2023 |