Group 1 - The core point of the article is that Yangnong Chemical (600486) has filed an international patent application for a compound related to phenoxyaryl compounds, with the application number PCT/CN2025/107253 and an international publication date set for January 29, 2026 [1] - In 2023, Yangnong Chemical has announced one international patent application [1] - The company invested 167 million yuan in research and development in the first half of 2025, which represents a year-on-year decrease of 0.64% [1]