四方科技(603339.SH)：董事钱丹辞职

Group 1 - The core point of the article is the resignation of Qian Dan from the board of directors of Sifang Technology (603339.SH) due to work adjustments, although he will continue to hold other positions within the company [1] Group 2 - Qian Dan submitted a written resignation report to the company's board [1] - The resignation pertains to his position on the fifth board of directors [1] - The company has not indicated any immediate impact on its operations or strategy following this change [1]