Weian Corporation's IPO on the Shanghai Stock Exchange Main Board has been under inquiry, making it one of the largest circuit protection companies in mainland China.

According to the Securities Times APP, on July 17th, Shanghai Weian Electronic Co., Ltd. (referred to as Weian Co., Ltd.) changed its status of application for listing on the main board of the Shanghai Stock Exchange to "inquiry received". CITIC Securities is its sponsor institution, and it plans to raise 1.835 billion yuan.