维生素概念股持续活跃 尔康制药20CM涨停

Group 1 - The core viewpoint is that vitamin concept stocks are experiencing significant activity, with Erkang Pharmaceutical hitting a 20% limit up [1] - Other companies such as Yong'an Pharmaceutical and Hehua Co. also reached their daily limit up, while Brother Technology, Xin Ganjiang, and Huayuan Biological increased by over 5% [1] - The price of feed-grade vitamin D3 in Taizhou Haisheng has been raised to 600 yuan per kilogram, indicating a price increase in the market [1] Group 2 - Major domestic manufacturers have collectively stopped reporting prices as of April, suggesting a tightening supply situation [1] - The European market is facing a stock shortage, which may further impact pricing and availability [1]