Group 1 - The core point of the article is the announcement of a procurement notice by Zhongyan Anhui Hongsifang Fertilizer Co., Ltd. for various valves, including cutoff valves, drain valves, and ball valves, published on January 29, 2026 [1] Group 2 - The procurement notice is specifically for the purchase of cutoff valves, drain valves, and ball valves [1] - The publication date of the procurement announcement is January 29, 2026 [1] - The announcement is recorded in the Tianyancha database, indicating the company's active engagement in procurement activities [1]