Santer Corporation: Currently, the company's integrated business of solar energy storage is in the expansion stage with a small proportion of revenue.

Cent Shares issued a abnormal trading announcement. The closing price of the company's stock deviated from the previous 20% for three consecutive trading days on September 5th, 8th, and 9th, 2025, indicating abnormal fluctuations in stock trading. The media has been focusing on the company's new energy investment business. After verification, the company's main business includes integrated building photovoltaic, high-end building metal enclosure, and soil and groundwater environmental management. Currently, the company's integrated energy storage business is in the expansion stage. In addition, Beijing Cent New Energy Investment Co., Ltd. was established on March 25, 2025. As of the end of August 2025, the company held station total electricity income of 10.84 million yuan. Up to now, the revenue from these two businesses is relatively small. The company conducted a self-inspection and confirmed with the controlling shareholders and actual controllers that as of the disclosure date of this announcement, there were no significant undisclosed items that should have been disclosed.