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Mr. Xiangyu Yang serves as COO of HJ Science Co., Ltd. from February 18, 2024 and is its Executive Director since July 11, 2025 and had been its Director since January 18, 2024. Mr. Yang joined the HJ Science Co. Ltd. on February 20, 2017. From August 2013 to July 2016, he worked as a drug development researcher at Diao Group, a company principally engaged in research and development and sales of drug products, where he was primarily responsible for drug research and development. Mr. Yang obtained his bachelor’s degree in bioengineering from the Hunan Agricultural University in the PRC in June 2008 and a master’s degree in pharmaceutical chemistry from the University of Chinese Academy of Sciences in the PRC in July 2013.