彤程新材：9月29日召开董事会会议

Group 1 - The core point of the article is that Tongcheng New Materials (SH 603650) held its 25th meeting of the third board of directors on September 29, 2025, to discuss changes in registered capital, the cancellation of the supervisory board, and amendments to the company's articles of association [1] - For the year 2024, the revenue composition of Tongcheng New Materials is as follows: rubber additives account for 74.67%, electronic materials account for 22.77%, fully biodegradable materials account for 2.47%, and other businesses account for 0.09% [1] - As of the time of reporting, the market capitalization of Tongcheng New Materials is 25.3 billion yuan [1] Group 2 - The article mentions a competitive situation where Nongfu Spring's green bottle product launch has led to a significant decline in market share for Yibao, dropping nearly 5 percentage points [1]