Group 1 - The core viewpoint of the article is that Dazhongnan (002263) is actively engaged in the development of differentiated specialty membrane products and new materials through its subsidiary Hangzhou Dazhongnan High-tech New Materials Co., Ltd [1] Group 2 - The company is focusing on innovative materials, indicating a strategic direction towards advanced material technology [1]

Group 1 - The company has a subsidiary named Hangzhou Dadongnan High-tech New Materials Co., Ltd. which focuses on differentiated specialty membrane products and is currently developing new products [2] - The inquiry was made by an investor on an interactive platform regarding the main new materials that the company invests in [2] - The company responded to the investor's question on August 21, indicating its commitment to innovation in new materials [2]