Contact Us
Office Hours:
Monday - Friday 8:30AM to 5:30PM
Thomko Petro Chemical
3110 West 5th Avenue
Gary, IN 46406
Thomko Petro Chemical
3110 West 5th Avenue
Gary, Indiana 46406
Phone
: 219-309-9613
Fax
: 219-979-6746
Charles Thompkins
Office Manager
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