胜利股份：公司持有山东胜利生物工程有限公司45%股权，该公司属于医药制造业

Group 1 - The company holds a 45% stake in Shandong Shengli Biological Engineering Co., Ltd. [1] - Shandong Shengli belongs to the pharmaceutical manufacturing industry [1] - The company primarily utilizes biological fermentation technology to produce animal-specific antibiotic raw materials, formulations, and feed additives [1] - The products are mainly applied to terrestrial and aquatic animals [1]