Group 1 - The core viewpoint of the article highlights that Zhejiang Longsheng has experienced price increases in domestic dyes due to rising raw material costs, specifically mentioning a significant rise in the price of disperse black dye by 3000 yuan per ton [1] Group 2 - The company reported that various dye products, including disperse dyes, reactive brilliant blue, and other reactive dyes, have seen a certain degree of price increase [1]