Grinm Advanced Materials announced that the company's stocks experienced abnormal fluctuations in trading prices on the consecutive two trading days of November 26 and 27, 2024, with a cumulative deviation exceeding 20%, indicating unusual stock trading volatility. Upon self-inspection by the company and verification with the controlling shareholder China Grinm Technology Group Co., Ltd., as of the date of this announcement, there are no significant undisclosed information that should be disclosed. The production and operation activities of the company and its subsidiaries are all normal, with no major changes in the internal or external environment. The company has not identified any media reports or market rumors that could significantly impact the trading price of the company's stocks. There was no evidence found of directors, supervisors, senior management, and controlling shareholders of the company buying or selling company stocks during this period of abnormal stock trading volatility.