Bostal Drug Delivery Co., Ltd. announced that it has received $31.4 million in its Series B+ round of funding led by Huatai Zijin Investment Co. Ltd on April 19, 2022. The transaction included participation from Guangzhou Chuangyu Investment Management Co., Ltd., Guangzhou Jet Bio-Filtration Co., Ltd., and Guangzhou Sanmei Investment Management Center (Limited Partnership).