Joinn Laboratories addresses unusual stock trading after price surge

Joinn Laboratories (China) Co., Ltd.'s shares experienced abnormal trading fluctuations, with the cumulative deviation from the daily closing price exceeding 20% over three consecutive trading days: September 11, September 12, and September 15, 2025. This falls under the definition of abnormal stock trading according to Shanghai Stock Exchange trading rules.

Following an internal review and inquiries with its controlling shareholders and actual controllers, the company confirmed that as of the announcement date, there is no disclosed material information that has not yet been revealed. The company's production and operation activities are normal, with no significant changes in the internal or external operating environment.

Furthermore, Joinn Laboratories stated that no major asset restructurings, share issuances, company acquisitions, debt restructurings, asset divestitures, or asset injections are being planned or discussed. The company also found no media reports or market rumors requiring clarification and no trading of its shares by controlling shareholders, actual controllers, directors, supervisors, or senior management during the abnormal fluctuation period.