An automotive supplier has announced plans to expand into Warren County and bring a projected 100 jobs in the process.Michigan-based DN Plastics plans to locate in a 120,000-square-foot building that will be constructed in Morrison at the intersection of Manchester Highway and Old Well Road.Between its $3.8 million building and new equipment purchases, DN Plastics estimates it will make an initial investment of $10.1 million in Warren County.“This is a definite win for this community,” said Industrial Development Board director George Burke. “This is something the industrial board has worked very hard on for some time and it’s been a very difficult project to finalize.”DN Plastics was founded in Grand Rapids, Mich., in 1998 by Raj Agrawal and his wife, Sunita. The company became interested in Middle Tennessee because of its relationship with VIAM Manufacturing in Manchester.DN Plastics uses state-of-the-art compounding equipment and technology to produce plastic resin and synthetic fiber components.