Since its inception in 1998, Shandong Subang Fluorescence Technology Co., Ltd. has only focused on the R & D, production and sales of fluorescent whitening agents and their intermediates. With domestic mature technical strength and good quality fluorescent whitening agent series products. MORE + This product is widely used in plastic, ink paint, water-based coatings, printing and dyeing, and other fields. MORE + The product has high technology content, advanced production equipment and strong technical force. MORE + Development Located in Yucheng, Dezhou City, Shandong Subang dedicated into the R&D, manufacturing and sales of optical brighteners since 1998. 1998 Mr. Xiao Hongjun and his friends jointly established Jinan Ruiyou Trading Co., Ltd. 2005 Jinan Subang Fine Chemical Co., Ltd was registered. 2009 Foreign Trade Department was established. 2012 2 acres warehouse was built in Jinan, Shandong. 2013 Intermediate production line was set up. 2014 Shandong Joy-ring Chemical Co., Ltd. was registed. 2015 General Manager Mr Xiao Hongjun set the current goal of "small but professional. specific and specialized." 2017 Began to build new warehouse and logistics base in Dezhou, Shandong Shandong Subang Fluorescence Technology Co., Ltd was registered. 2019 Bought 1000 square meters office in JINAN.Warehouse and logistics base completed and put into use. We strive to provide customers with quality products.