1998 Guangdong Well-silica sol co., ltd. was established(headquarter).
2000 Shijiazhuang Well-silica sol branch was established.
2006 Dalian Well-silica sol branch was established.
2013 Yangjiang Well-silica sol branch was established.
2015 Hubei Zhenghe-silica sol branch was established.
2016 Guangdong Well-nanotech co., Ltd. was established.
![Milestones]( "Milestones")