GSE Lining Technology is investing roughly $5 million in an expansion of its facility in Williamsburg County, South Carolina. The move, expected to be completed by May, will add 24 more jobs to the site. GSE’s Williamsburg County facility produces a range of materials, such as geotextiles and geocomposites. The expansion will enable the production of geosynthetic clay liners (GCLs), according to an article at SCNow.com.