Have been to the indoor skiing in Shanghai, Minhang district, called Yinqixing.
That was fun.

Also went to Jihua and hour from Harbin. Was interviewed by
the local Harbin TV news while there. Not because I was a laowai,
but I can ski better than their instructors.

There is I believe a better place to ski outside of Harbin called Yabuli.

Beijing has indoor skiing and also they set up some kind of ski school
in the Bird's Nest Stadium.

Other ski places near Beijing: Nanshan Ski Resort, Shijinglong Ski Resort, Huibei Ski Resort, Jundushan Ski Resort, Snow World Ski Resort.

Nothing in China like the Alps or Rocky Mountains, but nonetheless fun.^

side note on Jihua:

They had what looked like a ridiculous amount of ski rental equipment.
I asked how many? They said they have 10,000 pairs of skis for rent.
Well that's China...lots of people.