China Calcium L-Threonate Our History Jiahe Biological is a high-tech enterprise dedicated to the research, development, production and sales of amino acids and their derivatives. Headquartered in Shantou City, Guangdong Province. Subordinate Shantou headquarters production base and Shandong Xintai production base. Shantou Jiahe Biotechnology Co., Ltd., the production base of Shantou...