Kasuo Stone products are SGS tested and certified, providing internationally recognized third-party verification of safety, quality, and performance. Our quartz and silicon-free stone meet global standards for formaldehyde-free composition, heavy metal content, scratch resistance, stain resistance, and durability. With SGS certification, we build trust with buyers, distributors, and designers worldwide, support market access in multiple countries, and demonstrate our commitment to reliable, safe, and high-quality products. We provide complete compositional analysis and physical performance test reports for all our products.