Shandong Kailong Chemical Technology Development Co., Ltd. from Weifang Kailong Chemical Co Ltd wholly built in the early 2009 production industry large sodium sulfite production enterprises, a total investment of one hundred million yuan, "Kay" trademark registered in 2005, 2011 was recognized as a famous brand in Shandong Province, with an annual output of "Kai" brand high purity sodium metabisulfite (above the main content 98%) 200 thousand tons of high purity, Sodium Bisulfite (main content 99.9%), anhydrous sodium sulfite (the main content of 98% 50 thousand tons each). The company has independent technology research and development institutions, in order to develop a recycling economy and the new energy economy as a foothold, is the power source of sustainable development of enterprises. The company has passed ISO9001 certification, the EU REACH pre registration, KOSHER certification, HALAL certification, food additive production license, etc..