Group 1 - The company, Kuncai Technology (603826.SH), primarily engages in the production and sales of pearlescent materials and mica, and does not currently involve plastic chemical management in its production process [1] - An investor inquired about the company's involvement with plastic chemicals and the absence of related disclosures in annual and ESG reports, questioning future plans for such disclosures [1]

Group 1 - The core viewpoint of the article is that Wihua New Materials (603310.SH) does not engage in the management of plastic chemicals during its business operations [1] - The company primarily produces intermediates such as chlorotoluene and trifluoromethylbenzene series [1]

Group 1 - The company, Huading Co., Ltd. (601113.SH), focuses on the research, production, and sales of high-quality, differentiated nylon filament for civilian use [1] - The company does not engage in the management of plastic chemicals during its business operations [1]

Group 1 - The company, Dinglong Technology (603004.SH), primarily produces PI monomers and PBO monomers for the synthesis of polyimide materials and PBO fibers, with minimal involvement in the management of plastic chemicals during the monomer production process [1] - An investor inquired about the company's involvement with plastic chemicals in its products and services, questioning the absence of disclosures regarding plastic chemical management in annual and ESG reports [3] - The company has not disclosed any information related to the management of plastic chemicals in its annual and ESG reports, raising questions about future plans for such disclosures [3]