“What are the outcomes of sanctions? ... Since 2011, the US has imposed more than 100 sanctions against Russia. Evidently, imposing sanctions remains inefficient in resolving problems,” Wang said. “It will only severely worsen regional economics.”

In another article it says a few Chinese banks including Bank of China are already complying with US sanctions on Russia https://www.bloombergquint.com/global-economics/chinese-state-banks-restrict-financing-for-russian-commodities