Group 1 - The chairman of Dongfang Materials, Xu Guangbin, has resigned from his position due to personal reasons but will continue to serve as a board member [7] - Xu Guangbin's resignation will not affect the minimum number of board members required by law, and the company will proceed with the election of a new chairman and the reappointment of committee members [7] - As of July 28, 2025, Xu Guangbin holds 3.6428 million shares of the company, which will be managed according to regulatory requirements [7] Group 2 - Dongfang Materials announced a significant decrease in expected net profit for the first half of the year, projecting a profit of between 500,000 to 750,000 yuan, a decrease of 518,000 to 493,000 yuan compared to the previous year, representing a year-on-year decline of 91.20% to 84.32% [10] - The decline in performance is attributed to intense competition in the ink market, leading to reduced sales prices and lower gross margins, as well as increased sales expenses due to higher compensation for sales personnel [10]