LEOMINSTER, Mass. (June 19)—AlphaGary Corp. is making moves at three of its plants, closing one unit in the U.S., expanding capability at a second domestic factory and bringing a United Kingdom facility up to full usage. These moves include: phasing out the firm´s Newark, N.J., facility; adding equipment and manufacturing at the Pineville, N.C., plant; and bringing the Pineville´s ``twin´´ factory in the U.K. up to full operational status. The compounder of thermoplastic elastomers, polyvinyl chloride and PVC blends began moving key pieces of machinery to Pineville from Newark about two months ago, an official said. The company intends to close the Newark site within the next month and likely will sell the facility, Advertising Manager Denise O´Connell said. AlphaGary also plans to add new equipment and increase capacity at the Pineville operation.