化纤股震荡拉升 尤夫股份再度涨停

Group 1 - The core viewpoint of the article highlights the significant stock price movements in the chemical fiber sector, particularly the surge in shares of Youfu Co., which hit the daily limit up again [1] - Other companies in the sector, such as Suzhou Longjie, Jilin Chemical Fiber, and Jilin Carbon Valley, also experienced notable increases, with Jilin Chemical Fiber and Jilin Carbon Valley rising over 5% [1] - The recent developments in the industry are linked to a seminar organized by the China Chemical Fiber Industry Association, focusing on the "14th Five-Year" development plan for the chemical fiber industry [1]