Minth Group Ltd. is investing $87 million in an additional facility on the company's property in Lewisburg, Tenn., and creating 254 jobs over the next five years. The project includes the construction of a 236,000-square-foot plant, which will be used for the production of injection molded, painted and chrome-plated plastic parts for automaker customers such as General Motors Co. and Ford Motor Co. The facility is expected to be completed by 2021. As part of that investment, the company renovated an existing 125,000-square-foot facility in Lewisburg.