About Us We, at Xiamen Winson Import&Export CO.,LTD. have served over 200 customers like you since 2007. We have more than 100 colors of granite, marble and quartz, customized color of quartz is also available. We are shipping random slabs, large slabs, cut-to-size tiles and prefab countertops to all over the world. We believe in quality and this has helped us to grow rapidly in stone industry. Honesty is the keyword for WINSON.