Zhu Jiawei, COO of Huobi, left the crypto exchange in April “to spend more time with families,” according to an announcement made public on Wednesday. Zhu joined the exchange in 2015 and had assumed top roles including CEO assistant and director of operations. Founded in China in 2013, Huobi stopped providing services to mainland Chinese customers in late September because of the country’s year-long crackdown on cryptocurrency trading. [CLS, in Chinese]