Swallow Slate Ltd. is a company who specialise in the quarrying and production of the highest quality slate and stone products for roofing. The Swallow Slate Company Ltd. is a family owned business with over 15 years experience in the sourcing and exportation of natural stones. We have roofing slate quarries in China and all natural slate products supplied by Swallow Slate Ltd. are produced from its quarries in Daba mountains on the upper reaches of the Han river. They have very rich resources and of excellent quality. Our products pass the requirement of ASTM(U.S.), the requirements of BS680 part 2:1971(U.K.) and the requirement from Stone Materials Quality Inspection & Test Center of China Building Materials Industry. They have approved for use in many conservation areas.