●In April 2018, Desunmet strictly controlled every link of production by using advanced testing methods to ensure the qualified rate of products.
●In June 2017, Desunmet upgraded production equipment, expanded production scale, improved the shortage of existing equipment and improved product quality.
●In March 2015, Desunmet expanded production workshop, optimized working environment,improved production equipment, employee satisfaction and product quality.
●In July 2014, Desunmet expanded the depth of its products on Europium Nitride and Strontium Nitride, and produced different purity specifications to meet the different needs of the market.
●In May 2013, Desunmet introduced advanced production equipment, optimized production process, and earnestly fulfilled the slogan of "based on science and technology, based on quality for development"
●In July 2012, Desunmet successfully developed and produced Europium Nitride in batches.
●In Feb.2012,Desunmet made further breakthroughs and successfully developed nano-aluminium nitride
●In May 2011, Desunmet upgraded the purity of aluminium nitride again, reaching 99.9%, which is in the advanced international level.
●In May 2010, Desunmet launched a series of rare metal nitrides, such as magnesium nitride, calcium nitride, tungsten nitride, strontium nitride, zirconium nitride and so on.
●In December 2008, Desunmet's nitride series products gradually occupied the foreign market and were exported to Europe, America, Southeast Asia and other regions.
●In March 2007, Desunmet introduced advanced production technology from abroad to further improve the quality of AlN and Si3N4 to reach the leading level.
●In January 2006, a series of high-purity titanium nitride, high-purity silicon nitride and high-purity molybdenum disilicide products were introduced.
●In May 2005, Desunmet strengthened product R&D efforts, absorbed outstanding technical talents, established technology R&D departments and established a technology-oriented business philosophy.
●In October 2003,Desunmet further upgraded its products and cooperated with the Chinese Academy of Science to develop aluminium nitride successfully.
●In September 2002, Desunmet Special Ceramics Manufacturing Co.Ltd. established and mainly produced and sold A-phase silicon nitride.

●In April 2018, Desunmet strictly controlled every link of production by using advanced testing methods to ensure the qualified rate of products.
●In June 2017, Desunmet upgraded production equipment, expanded production scale, improved the shortage of existing equipment and improved product quality.
●In March 2015, Desunmet expanded production workshop, optimized working environment,improved production equipment, employee satisfaction and product quality.
●In July 2014, Desunmet expanded the depth of its products on Europium Nitride and Strontium Nitride, and produced different purity specifications to meet the different needs of the market.
●In May 2013, Desunmet introduced advanced production equipment, optimized production process, and earnestly fulfilled the slogan of "based on science and technology, based on quality for development"
●In July 2012, Desunmet successfully developed and produced Europium Nitride in batches.
●In Feb.2012,Desunmet made further breakthroughs and successfully developed nano-aluminium nitride
●In May 2011, Desunmet upgraded the purity of aluminium nitride again, reaching 99.9%, which is in the advanced international level.
●In May 2010, Desunmet launched a series of rare metal nitrides, such as magnesium nitride, calcium nitride, tungsten nitride, strontium nitride, zirconium nitride and so on.
●In December 2008, Desunmet's nitride series products gradually occupied the foreign market and were exported to Europe, America, Southeast Asia and other regions.
●In March 2007, Desunmet introduced advanced production technology from abroad to further improve the quality of AlN and Si3N4 to reach the leading level.
●In January 2006, a series of high-purity titanium nitride, high-purity silicon nitride and high-purity molybdenum disilicide products were introduced.
●In May 2005, Desunmet strengthened product R&D efforts, absorbed outstanding technical talents, established technology R&D departments and established a technology-oriented business philosophy.
●In October 2003,Desunmet further upgraded its products and cooperated with the Chinese Academy of Science to develop aluminium nitride successfully.
●In September 2002, Desunmet Special Ceramics Manufacturing Co.Ltd. established and mainly produced and sold A-phase silicon nitride.