We are specialized in manufacturing natural roofing slate and flooring slate. We have our own slate quarry and also invested into another two quarries. Our blue black roofing slates conform to BS EN 12326 Part 2: 2000 and classifies the slate as A1, as well as ASTM C406 classified the slate as grade S1 Our quarry is located in Ziyang county, Ankang city of Shaanxi Province of China, which is the biggest slate exporting base in China, The slate vein runs for over 200 km East-west, average 50 km wide. Most of the slate was formed in the age from Ordovician to Cambrian periods. In this area, they have the beautiful, high quality black slate and 50% of national production capacity. People from Germany, France, Belgium, UK, Spain, as well as US have come to visit the area for sourcing, purchasing, investment in slate. We regard quality as life of our company, we have our own quality control system covering all process from cutting, spliting, inspection, packing,transportation, documents, tracking etc. we promise, each piece of slate will be carefully selected by our professional inspectors before cargo is shipped to our customer, we guarantee each slate is good quality. We promise to rovide Premium Grad Product at Competitive rate and delivery in time. We are professional, very honest, we also would like to establish a long time business relationship with esteemed company. please don't hesitate to send us your enquiry by email, fax, or call us directly, we will answer your questions quickly.