Proper Polymers plans to build a new facility in Greenville County to manufacture injection-molded components for the automotive industries. The development brings $15.45 million in investment and lead to the creation of 87 jobs. A division of Proper Group International, Proper Polymers Greenville plans to build a 50,000-square-foot facility in Greenville County’s Matrix Park, expandable up to 100,000-square-feet. The company [...]