Sichuan Energy Industry Investment Group Co., Ltd. entered into an agreement to acquire 13.7% stake in Anhui Shengyun Environment-Protection group Co., Ltd (SZSE:300090) from an unknown controlling shareholder on May 22, 2018. Sichuan Energy Industry Investment Group Co., Ltd. cancelled the acquisition of 13.7% stake in Anhui Shengyun Environment-Protection group Co., Ltd (SZSE:300090) from an unknown controlling shareholder on May 22, 2019.