Cig Shanghai (06166) A-share stock trading abnormal fluctuations, there is no significant information that should be disclosed but has not been disclosed.

Cig Shanghai (06166) announced that the A-share stock (security code: 603083, security abbreviation: Cig Shanghai) had a cumulative deviation of 20% in the closing price for three consecutive trading days on June 22, 23, and 24, 2026. According to the relevant regulations of the Shanghai Stock Exchange Trading Rules, this situation falls under abnormal stock trading fluctuations. After consulting with the company's controlling shareholder CIG Cayman, the actual controller Mr. Gerald G Wong, and his concerted action person Mr. Zhao Haibo in writing, it has been verified that there is no significant undisclosed information related to the company by the controlling shareholder, actual controller, and their concerted action person. Apart from the implementation of the reduction plan, there are no other sensitive issues that could have a significant impact on the company's stock price, including major asset reorganization, share issuance, significant trading matters, business restructuring, share repurchase, equity incentives, bankruptcy reorganization, major business cooperation, introduction of strategic investors, etc. After a self-inspection by the company, it was confirmed that apart from CIG Cayman and its concerted action Shanghai Kangling Technology Partnership Enterprise (Limited Partnership) reducing some company stocks during this period of abnormal stock price fluctuation (within the implementation period of the reduction plan), other directors and senior executives of the company did not buy or sell company stocks during this period. After verifying with the management, it was confirmed that there have been no significant changes in the company's daily operations, market environment, or industry policies. The production costs and sales of various products have not experienced significant fluctuations, and the internal production and operation order is normal.