| OEC | Orion Engineered Carbons |
| FF | FutureFuel |
| ESI | Element Solutions |
| RPM | RPM |
| SXT | Sensient |
| FUL | H.B. Fuller Company |
| CBT | Cabot |
| KRO | Kronos Worldwide |
| ODC | Oil-Dri Corporation of America |
| IOSP | Innospec |
| KWR | Quaker Chemical |
| ASH | Ashland |
| MTX | Minerals |
| WTTR | Select Energy Services |