Chinese people love Costco. I had relatives from China visiting the U.S. recently and went to Costco with them multiple times. I also live in a community with many Chinese immigrants and the local Costco is doing a ton of business with immigrants and tourists from China.
If only Costco had an app like Sams I would go more often. I have both memberships, but go to Sam's about 75% of the time due to the ease of the scan and go app.