一个月股价涨超30%！太龙药业为何此时停牌？

Core Viewpoint - The stock price of Tailong Pharmaceutical (600222) has been rising due to the rapid increase in national flu activity, but the company has chosen to suspend trading amid plans for a potential change in control through a share transfer by its major shareholder, Zhengzhou Tai Rong Industrial Investment Co., Ltd [1][5][6]. Group 1: Company Overview - Tailong Pharmaceutical was established in 1998 and went public in November 1999. Its main business includes drug manufacturing and research services, covering four segments: drug formulation, traditional Chinese medicine pieces, drug research services, and drug material circulation [6][18]. - The company's drug manufacturing business has been a significant contributor, accounting for over 75% of total sales, with the core product, Shuanghuanglian Oral Liquid, being a recommended medication for major epidemic treatment plans [6][18]. Group 2: Recent Developments - The company announced a trading suspension starting December 2, 2025, due to the planned share transfer that may lead to a change in control [1][4]. - The stock price increased by over 30% leading up to the suspension, with a closing price of 8.58 yuan per share and a market capitalization of approximately 4.924 billion yuan on December 1, 2025 [7][19]. Group 3: Financial Performance - In 2024, Tailong Pharmaceutical reported revenue of 1.941 billion yuan, a year-on-year decrease of 6.21%. For the first three quarters of 2025, revenue continued to decline to 1.187 billion yuan, down 11.47% year-on-year [7][19]. - The net profit for 2022-2024 and the first three quarters of 2025 were -76 million yuan, 45 million yuan, 53 million yuan, and 30 million yuan, respectively, showing a significant recovery in 2023 but a slowdown in growth thereafter [20][23].