Changchun High-tech (000661.SZ) announced that on November 26, 2021, the company received a notice from Mr. Jin Lei, a shareholder holding more than 5% of the shares, based on the recognition of the company's long-term value and confidence in the company's future development, Mr. Jin Lei recently increased his holding of 154,000 shares of the company's shares through centralized bidding, a total of 45.8884 million yuan.