Founded in 1995, OYH has over 30 years of expertise in the building materials industry. We provide integrated solutions for tens of thousands of major infrastructure projects, industrial developments, and residential and commercial buildings worldwide. With functional building materials at our core, we have evolved into a full-spectrum provider by expanding across the entire value chain. Our diverse portfolio includes waterproofing systems, dry mix mortars, cement-based construction materials, non-woven fabrics, architectural coatings, building renovation products, energy-efficient insulation, specialty films, and chemical raw materials.