He said that the permanent missions of China, Iran and Russia held tripartite consultations.
"Doesn't this look like a new triangle in multilateral diplomacy - China, Iran and Russia?"
he wrote on Twitter.
According to Ulyanov, this format can easily expand, because many states are in favor of multipolarity in the international arena.
Earlier, Chinese Foreign Minister Wang Yi, at a meeting with Russian Ambassador to China Igor Morgulov, said that the Chinese and Russian sides do not recognize unipolar hegemony.
Russian leader Vladimir Putin noted that the movement towards multipolarity has become the main vector of international politics.