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| EIEisai Inc (215) | Exton | PA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
| EIEntegris, INC. | Ambler | PA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| EDEnzyme Development Corporation | Scranton | PA | Food Manufacturing311999 | 20-99 | ◐ LIKELY ACTIVE |
| ESEsstech Site B | Essington | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| FCFmc Corporation | Philadelphia | PA | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| FTFreeport Terminals | Freeport | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| FBFrontida BioPharm LLC. - Dungan | Philadelphia | PA | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| GBGe Betz Trevose Fac | Trevose | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| GMGlaxosmithkline/upper Merion Biopharm | West Conshohocken | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| GCGreenwood Clnr/bristol | Fairless Hills | PA | Chemical Manufacturing325191 | — | ◐ LIKELY ACTIVE |
| GFGrowmark Fs LLC Somerset Fac | Somerset | PA | Chemical Manufacturing325314 | — | ◐ LIKELY ACTIVE |
| GVGSK Vaccines Marietta, PA | Marietta | PA | Chemical Manufacturing325411 | 100-499 | ◐ LIKELY ACTIVE |
| GPG&w Pa Lab/sellersville | Sellersville | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| HGHammond Group INC | Pottstown | PA | Chemical Manufacturing325130 | 20-99 | ◐ LIKELY ACTIVE |
| HEHansen Eng Inc/west Alexander | West Alexander | PA | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| HLHayward Laboratories, INC. | East Stroudsburg | PA | Chemical Manufacturing325611 | 100-499 | ◐ LIKELY ACTIVE |
| HCHenwil CORP Swi | Newell | PA | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| ICIconx Chemicals | Canonsburg | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| ICIndspec Chemical CO | Petrolia | PA | Chemical Manufacturing325188 | — | ◐ LIKELY ACTIVE |
| I2Inventions 2000 INC | Wyomissing | PA | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| JBJanssen Biotech, INC. | Malvern | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| JRJanssen Research & Development Llc/lower Gwynedd | Spring House | PA | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| KBKenvue Brands Llc/whitemarsh Twp | Fort Washington | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| KFKnf Flexpak Corporation | Tamaqua | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| KTKvk Tech Inc/ Terry Dr | Newtown | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| LILabchem INC | Zelienople | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| LELake Erie Biofuels LLC d/b/a Hero BX | Erie | PA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
Lane Enterprises Inc/carlisle | Carlisle | PA | Chemical Manufacturing325220 | — | ◐ LIKELY ACTIVE |
| LCLord CORP | Saegertown | PA | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
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| MLMesser LLC Braddock Plt | Braddock | PA | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
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| PGPa Gellner & CO. L.l.c. | Hometown | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| PSParticle Size Tech/quakertown | Quakertown | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| PCPMC Crystal | Lansdale | PA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| PIPolyflo, INC. | Saint Clair | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| PPowdersize | Quakertown | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| PLPower Line Packaging | Conshohocken | PA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| PQP Q | Conshohocken | PA | Chemical Manufacturing325131 | — | ◐ LIKELY ACTIVE |
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| QUQEMETICA US Silica - Monroeville | Monroeville | PA | Chemical Manufacturing325180 | 1-19 | ◐ LIKELY ACTIVE |
| QSQuotient Sciences GV | Garnet Valley | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
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| RIReading Industries INC | Reading | PA | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |