BlockBeats News, July 30th: In the afternoon of the A-share market, the storage chip sector hit bottom and rebounded. Techsun Technology surged to the daily limit up, while GigaDevice, Jiesai Tech, Netac Technology, and Puya Shares rapidly rose. Changxin Technology rebounded in the afternoon after previously falling by more than 6.5%. As of the time of writing, the trading volume has exceeded 30 billion RMB.