铜峰电子(600237.SH)：中旭产投累计增持2276.59万股公司A股股份

Group 1 - The core point of the article is that Zhongxu Chantu has completed its share buyback plan for Tongfeng Electronics, acquiring a total of 22.7659 million A-shares, which represents 3.61% of the company's total issued shares [1] - The total amount spent on the share buyback is 151 million yuan, exceeding the lower limit of the planned buyback amount of 150 million yuan [1]