BlackRock's CEO says China is the biggest supporter of Russia's economy amid the Ukraine war

China is Russia's biggest war backer, BlackRock chairman and CEO Larry Fink said on Tuesday.

Fink spoke at a panel at the Berlin Global Dialogue conference when he said that Western businesses need to re-evaluate their relationship with China.

"Russia's biggest supporter and fundamental supporter of the Russian economy is China. And that has to be at least discussed," Fink said.