Vontron is specialized in R&D, manufacture and technical service of RO and NF membrane elements. Owning the core technology and capability for fabrication of membrane sheet, Vontron is the biggest professional manufacturer of compound RO membranes in China, and is the provider of system design and applied service with powerful technical support. Vontron operates its manufacturing plant in Guiyang, with total capacity of 10 million square meters of RO and NF membrane sheet annually. Based upon the absorption and renovation of the full-process RO membrane producing line and technologies imported from the United States in 2001, the product series produced by Vontron, including industrial-purpose element, seawater desalination element, fouling resistant element, oxidation resistant element and residential element, etc., have taken the leading position in quality and technological level in the world. Vontron has become the world’s second supplier of dry-type membrane elements with capacity of mass production. Moreover, the oxidation-resistant membrane and fouling-resistant membrane with leading technical advantage under completely independent intellectual property developed by Vontron have been widely applied to the wastewater treatment field, and have surmounted the difficulty in the application of RO membranes, i.e. the organic contamination and biological contamination, and have been widely applied in foodstuff and hygiene industries such as pharmaceutical abstraction, germ-free drinking water, etc. The company has been undertaking a number of state-level and province/ministry level projects, including National 863 Program, National Torch Program and National New Product Program, etc. The company applied for 11 state-level patents in 2001, including compound oxidation resistant RO membrane, laser thermal-melting equipment, etc. The R&D team, consisting mainly of doctorial researchers, has established four professionalized basic platforms separatel