Optical and optoelectronic sectors rebounded in the afternoon, with Crystal Optoelectronics hitting the daily limit, Minbao Optoelectronics previously hitting the limit, Fuguang Co., Ltd. and Meditech Co., Ltd. rising by more than 10%, and Woge Optoelectronics, Fujing Technology, BOE A, Jizhi Technology, Guangpu Co., Ltd. and others following suit.