"The Jinjiang River brings vigorous spring from the edge of heaven and earth, and the Yulei Mountain is surrounded by ever changing clouds from ancient times to the present." The Fuhe River, also known as Jinjiang River, is the cradle of Chengdu, which nurtures the economic, cultural and social development of the city, thus it is called the "Mother River of Chengdu".

On July 9 2022, more than 100 volunteers from CASCO Chengdu Company and Chengdu Metro Operation Co., Ltd. Maintenance Branch gathered on the banks of Fuhe River to jointly protect the mother river and the blue planet.

The volunteers, which were divided into 12 groups in 3 routes, patrolled along the banks to thoroughly clean the garbage left by sanitation workers in the grass and corners.