Group 1 - The number of shareholders for Zhongjin Irradiation as of August 31 decreased to 16,517, a reduction of 978 compared to the previous period, representing a decline of 5.59% [2] - The closing price of Zhongjin Irradiation was 17.22 yuan, with a slight increase of 0.29%, but the stock price has cumulatively decreased by 6.06% since the concentration of chips began, with 7 days of increase and 8 days of decrease [2] - The latest margin trading data shows that as of September 9, the total margin balance for the stock was 195 million yuan, with a financing balance of 195 million yuan, which has increased by 20.87 million yuan, or 12.01%, since the concentration of chips began [2] Group 2 - In the first half of the year, Zhongjin Irradiation achieved an operating income of 180 million yuan, a year-on-year increase of 0.58%, and a net profit of 65.81 million yuan, a year-on-year increase of 1.75% [2] - The basic earnings per share were 0.2493 yuan, and the weighted average return on net assets was 6.75% [2]