| CCK | Crown |
| SLGN | Silgan |
| MYE | Myers Industries |
| PTVE | Pactiv Evergreen |
| REYN | Reynolds Consumer Products |
| OI | O-I Glass |
| SON | Sonoco Products Company |
| BALL | Ball |
| GPK | Graphic Packaging Company |
| SEE | Sealed Air |
| AMCR | Amcor |
| IP | International Paper Company |
| PKG | Packaging Corporation of America |