(269) 496-8495 inquiry@thplastics.com

Our mission is to exceed customers’ expectations in supplier performance through a commitment of continuous improvement and employee enrichment.

TH Plastics provides superior customer support and is a solutions center for all your thermoplastic needs.

Safety | Quality | Productivity | Continual Improvement

Contact Sales

Contact Sales for information about how we can solve your design needs & discuss how TH Plastics can be an integral part of your supply chain.

Contact Human Resources/ Apply

Contact the TH Plastics Human Resources Department for the latest employment opportunities on our growing team.

TH Plastics Employee Portal

Welcome to the TH Plastics Employee Self-Service System and downloadable forms.

Locations & Contact:

TH Plastics is a custom injection molder with locations in Mendon, Michigan, Bowling Green, Ohio, Findlay, Ohio, and Tiffin, Ohio. Family owned and privately operated since 1974.


Mendon, Michigan

Contact Info:

Mendon Administration
106 E Main Street
Mendon, MI 49072
p  (269) 496-8495 x 1110
f  (269)  496-4675

Manufacturing Plant
501 TH Drive
Mendon, MI 49072

Manufacturing Plant

Findlay, Ohio

Contact Info:

Findlay Administration
101 Bentley Court
Findlay, Ohio 45840
p  (419) 425-5825 x 2276
f  (419)  425-3203

Manufacturing Plant

Bowling Green, Ohio

Contact Info:

Bowling Green Administration
843 Miller Drive
Bowling Green, Ohio 43402
p  (419) 352-2770 x 4420
f   (419)-352-2799

Manufacturing Plant

Tiffin, Ohio

Contact Info:

Tiffin Administration
680 Tyber Road
Tiffin, Ohio 44883
p  (567) 268-4200 x 5520
f  (419)  715-4113


Sales: Contact Brad Underwood
(269) 496-8495 x 1129