Riken Elastomers Riken Elastomers Adding Jobs at Hopkinsville Plant By Rob Canning • May 28, 2015 rec-ky.com An automotive plastics manufacturer is planning to double its facility and workforce in Christian County. Gov. Steve Beshear announced today that Riken Elastomers Corporation will create 27 new jobs and invest more than $22 million into expanding its Hopkinsville facility. Riken Elastomers Breaks Ground on Expansion By John Null • Jul 8, 2013 rec-ky.com A Hopkinsville automotive manufacturer is adding three production lines and six jobs in a 20,000 square foot expansion. Riken Elastomers is investing $7 million in the project.