Glass substrate concept stocks fluctuated and weakened, with WG Tech nearing the daily limit down.

In the afternoon, the glass substrate concept fluctuated and weakened, with Woguang Optoelectronics approaching the daily limit down, Dier Laser and Meidikai falling more than 10%, and Gobica, Delong Laser, Rainbow Shares, Lens Technology, Linuo Pharmaceutical Packaging, and Kaisheng Technology all falling more than 5%.