@ Kim, and to other interested guys, here’s what I confirmed today for clothes donating:
Place: Chengdu Bao Yue 4S shop, it’s a BMW selling company, located in Jinke South Road no. 3, Jinniu District
Final beneficiary: a primary school in Yushu city, Qinghai Province. the clothes will be sent to the children there and their parents
Note: I was told by the staff from BMW 4S shop, that the 4S shop sponsored a primary school in Yushu city, and they organize and accept clothes donating from time to time. Because of the whether there, winter clothes, or at least warm clothes are preferred
for your easy, I attached the screenshot of the map, on which you will find the place marked by ‘A’ in red