Canaan Land Building Material Maintenance Co., Ltd. was established in 2005 in Taipei, Taiwan, by a team of professionals with chemical, mechanical and material engineering backgrounds. The aim of the company is to solve various building material problems including pollution, disease and maintenance, and to better serve customers with a professional and experienced engineering team.Canaan Land Science Co., Ltd. was then set up after 10-year's industrious development. We have systematically developed and produced relevant products to expand the market share. To further march the global market, Mainland China based company SimonStone (Xiamen) New Material Tech Co., Ltd. was new born in 2018, aiming to provide quality services to global customers.