大洋生物：股东汪贤高计划减持公司股份不超过57万股

Group 1 - The core point of the article is that Mr. Wang Xiangao, a shareholder holding more than 5% of Dayang Biotechnology, plans to reduce his shareholding by up to 570,000 shares, which is 0.68% of the company's total shares, within three months after the announcement [1] - As of the announcement date, Mr. Wang holds approximately 650,000 shares, representing 0.77% of the total shares of Dayang Biotechnology [1] - The company's market capitalization is reported to be 2.4 billion yuan [1] Group 2 - For the first half of 2025, Dayang Biotechnology's revenue composition indicates that the chemical industry accounts for 95.72% of its total revenue, while other sectors contribute 4.28% [1]