| Contact Us T H has two locations serving Wisconsin, the Upper Peninsula and Greater Michigan, Ohio, Indiana, Illinois, and Minnesota. Our office is centrally located in Plainfield, Wisconsin. Please give us a call or email us to let us help you with all of your agricultural control needs. |
 Home Office in Plainfield |
| Contact us in Plainfield, WI: By Phone: 715.335.6343 Toll Free: 866.666.THAG (8424) By Email: thag@thagrichemicals.com By Fax: 715.335.4949 By Mail or in Person: T H Agri-Chemicals Inc. P.O. Box 265 617 E. North Street Plainfield, WI 54966 |
| Directions to our Plainfield Office: Take I-39 north of Portage to the Plainfield/Hwy 73 exit. Head east for approximately 2 miles, to nearly the edge of town. We are on the south side of Hwy 73, across the street from both the Assembly of God church and the Royal Supermarket. |