31 Inc is an internationally well-known manufacturer of tire repair materials, including patches, plugs, patch-plugs, cement, mounting chemicals, solutions, and small tools. Headquartered in the small farming community of Newcomerstown, Ohio, 31 Inc employs about 125 persons in North America and another 100 in itÕs joint venture factory in Shangyu, China. Almost all of the Mighty branded tire repair products from 31 are made in the USA.