The 2022 National Academic and Trade Information Exchange Conference on Plastic Coloring and Color Masterbatch and the 29th China Color Masterbatch Industry Annual Conference was held in Chongqing Changshou from March 2nd to 5th. The conference was hosted by the Color Masterbatch Professional Committee of the China Dyeing and Printing Industry Association and co-organized by 18 Chinese and foreign enterprises including Chongqing Aocai New Materials Co., Ltd., Chongqing Lanyue New Materials Co., Ltd., Suzhou Baolidi Materials Technology Co., Ltd., and Qingdao Bonni Chemical Co., Ltd. A total of 415 representatives from 261 enterprises attended the conference. 47 papers and reports were collected, 23 conference reports were given by Chinese and foreign enterprises, and 59 Chinese and foreign enterprises participated in the exhibition. Qingdao Bonni Chemical, as the co-organizer, also set up a booth. 

Sun Lichui from the technical support department of Qingdao Bonni Chemical Company presented a report at the conference, titled "Selection of Dispersants in Color Masterbatches and Recommended Methods".