The name Westone® has always been synonymous with the best in China stone slate ever since its' predecessor inception in 1983 when the company started slate quarry operation in the Shaanxi province of China, over the 30 years Westone has consistently produced top quality slate.Westone is a famous slate producer and supplier for roofing slate, flooring slate and billiard slate as well as paving, ledgestone, window sill, countertop.