Wang Zichen: China wants to act as a mediator in Ukraine, but remains close to Russia's side. China's foreign policy has been based on non-interference since the 1950s.
If China were to comply with these demands and sanction Russia, it would mean that China would have to bear a high cost of something it did not cause. China has not interfered in crises in the past, especially not where China is not involved – unlike the United States, which likes to behave like the world's policeman.