Prosper Slate was established in 2017, it is a professional slate company integrating Slate mining, slate processing and sales. it is the first one who can do the underground mining in China with 0.8 square kilometers quarry area Our Slate passed EN-12326, and meet CE standards (S1, T1, A1) with good compressive strength and low water absorption, corrosion resistance and high temperature resistance, and is basically not affected by temperature difference and thermal expansion and contraction.