| KTKaneka Texas Cpvc Plant | Pasadena | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| KMKast Marble Mfg | Amarillo | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| KCKcc Corrosion Control | Houston | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| KTKel Tech, INC. | Midland | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| KSKimberly-clark San Antonio Ops | San Antonio | TX | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| KCKior CORP | Pasadena | TX | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| KWKronos Worldwide | Dallas | TX | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| KAKuraray America Inc., Poval Bu, Bayport Plant | Pasadena | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| KHKwal Hanley Paint | El Paso | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| LFLancaster Furniture Company | Houston | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| LILaurel Industries | La Porte | TX | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| LLifelast | Pflugerville | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| LBLinde - Beaumont | Beaumont | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| LLLinde-clear Lake | Pasadena | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| LLinde-sweeny | Sweeny | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| LMLindon Manufacturing & Laboratory | Houston | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| LSLone Star Specialty Products | Lone Star | TX | Chemical Manufacturing325192 | — | ◇ UNVERIFIED |
| LBLongview Blending and Distribution Center | Longview | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| LELongwood Elastomers | Brenham | TX | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| LOLubrizol Oilfield Chemistry | Elmendorf | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MAMagnablend Alice Plant | Alice | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MHMagnablend Howard Plant | Waxahachie | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MIMalakoff Ind INC | Malakoff | TX | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| MEMapei East | Garland | TX | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| MDMarble Designs of Texas | San Antonio | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions US at Palmer Logistics | Grand Prairie | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MTMatheson Tri-gas INC | La Porte | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| MOMeglobal Oyster Creek | Freeport | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MMMesa Marble & Stone CO INC (dba Marble-craft) | Bryan | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MPMgc Pure Chemicals America, INC | Killeen | TX | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials USA INC | Hurst | TX | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| MIMorton International | Grand Saline | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSMpower Specialty Chemicals | Brookshire | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMuehlstein Compounded Products | Houston | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| NINA Industries Pasadena | Seabrook | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| NCNapco Chemical Co., INC. | Spring | TX | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| NCNational Casein | Tyler | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| NGNatural Gas Odorizing, INC. | Baytown | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| NTNeos Therapeutics | Grand Prairie | TX | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NSNovita Solutions, LLC | Gainesville | TX | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| OSOilfield Solutions Midland | Midland | TX | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| OIOptiblend Industries, INC. | Midland | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| OEOxbow Energy Solutions | Texas City | TX | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| OMOzark Materials, Llc, an Ingevity Company | Childress | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| OLOzburn-hessey Logistics | Fort Worth | TX | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| PMPasadena Methanol Plant | Pasadena | TX | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| PGPd Glycol Beaumont Plant | Beaumont | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| PFPeden Facility | Fort Worth | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| PIPhibro-tech INC | Garland | TX | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| PIPlexmar Incorporated | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
