's application for an IPO on the Science and Technology Innovation Board has been questioned. They are a provider of data storage main control chips and semiconductor storage products.

According to the Securities Times app, on July 8th, Engen Technology Co., Ltd. (referred to as Engen Technology) applied for a change in the status of its listing review on the Shanghai Stock Exchange's Sci-Tech Innovation Board to "under inquiry", with Guotai Junan Securities as the sponsor institution, aiming to raise 3.233 billion yuan.