Rosi Company was founded in 1989,with the current total investment over 100 million RMB.Under the brand name of "LERUI",Rosi manufactures acid dyes, mordant dyes, direct dyes,and leather dyes.

　　In 1996,Rosi became the first one among domestic dyestuff companies to pass the ISO9001,and in 2001,Rosi once again led the industry by passing the certification of ISO14001,which greatly improved the image of Rosi, and enhanced customer's confidence in Rosi.

　　With the total annual output of dyestuffs and intermediates hitting more than 5000 MT,nearly 85% of the products are to be exported to the customers in 20 countries and areas scattered over Europe and North America, among which are celebrated companies like CIBA,CLARIANT and DYSTAR.

　　Consisting of senior engineers,PH.D holders, and postgraduate students, and aided by advanced equipments like spectophotometer,UV,GC and HPLC,Rosi's technical team is proud of its strength on R&D,and confident in its competitive edge over Rosi's competitors.

　　To obey contracts strictly, guarantee quality seriously and to serve all customer's demand wholeheartedly are the sole purpose of the company. We have expect sincerely good business relationship, true friendship and cooperation with all domestic and foreign friends. Your presence and guidance are requested.