Core Insights - The company Xinhecheng (002001) has filed an international patent application for a catalyst and its preparation method, as well as a method for preparing unsaturated acids or their esters, with the application number PCT/CN2024/127351 and an international publication date of August 7, 2025 [1]. Group 1 - Xinhecheng has announced a total of three international patent applications this year, representing a 25% decrease compared to the same period last year [3]. - In 2024, the company invested 1.036 billion yuan in research and development, which is a year-on-year increase of 16.71% [3].