Group 1 - The core viewpoint of the article is that Kaisheng Technology clarified its business focus on display materials, specifically mentioning that it does not engage in research related to photoresist glass [2]. Group 2 - The company's display materials business includes flexible foldable glass (UTG), ultra-thin electronic glass, ITO conductive film glass, flexible touch, panel thinning, and integrated touch modules [2].

Group 1 - The core business of the company includes flexible foldable glass (UTG), ultra-thin electronic glass, ITO conductive film glass, flexible touch, panel thinning, and integrated display touch modules [1] - Currently, the company does not have any products used for photomasks [1]