I wouldn’t say no rewards. For once, their (China) politicians are much more open to cooperation vs the clear hostility from western ones to the point where for last 4yrs ”Russia bad” has been the de facto slogan for most politicians in US. It removes uncertainty and most likely they will be the first one to be into the system and likely be the ones to drive innovations around it. All in all these sanctions are quite ineffective unless the goal is to completely decouple Russia which doesn’t seem possible especially since Europe is still buying their oil and gas in elevated prices.