From started producing magnesium oxide products in 1992.The initial stage of its rapid development was to set up factoriesin indonesia, vietam,the philippines and other countries to produce low-end roof tiles by hand and semiautomaticity. ater, due to changes in China’s relations wth neighboring countries, china’s control ove raw materials and local market protection, the factory gradually closed down and returned to domestic production.The rise of industy,the price of ron and stel products,the manrket impact on the produc, so the production and sales business moved to china, after several years o XO development, continuous improvement of technology, adjustment ofthe oroduction nrocess automation graduallyimproved, quality has also been greatly improved