磷化工板块走强，宏达股份涨停

Core Viewpoint - The phosphate chemical sector has shown strong performance, with significant gains in stock prices for several companies, indicating positive market sentiment and potential investment opportunities in this industry [1]. Group 1: Company Performance - Hongda Co., Ltd. reached the daily limit increase in stock price [1] - Hubei Yihua, Chuanfa Longmang, and Chuanheng Co., Ltd. also experienced stock price increases, reflecting a broader trend in the phosphate chemical sector [1].