Yi Gangxiao signed a share transfer letter of intent to acquire 55.3% stake in Chengdu Xintong Wangyi Medical Science and Technology Development Co., Ltd. from Vanfund Urban Investment and Development Co., Ltd. (SZSE:000638) on February 12, 2020. Yi Gangxiao cancelled the acquisition of 55.3% stake in Chengdu Xintong Wangyi Medical Science and Technology Development Co., Ltd. from Vanfund Urban Investment and Development Co., Ltd. (SZSE:000638) on February 12, 2021.