| AVY | Avery Dennison |
| CCK | Crown |
| MYE | Myers Industries |
| PTVE | Pactiv Evergreen |
| REYN | Reynolds Consumer Products |
| SEE | Sealed Air |
| SON | Sonoco Products Company |
| BALL | Ball |
| IP | International Paper Company |
| GEF | Greif |
| PKG | Packaging Corporation of America |
| MGIH | Millennium Group |