"Russia's biggest supporter and fundamental supporter of the Russian economy is China," BlackRock CEO Larry Fink said on Tuesday.John Lamparski via Getty Images; Sergei Guneyev/Pool/AFP via Getty ImagesLarry Fink says China is the biggest, fundamental supporter of Russia's economy.Fink added that businesses should review their ties with China."You're supporting our enemy," Fink said of China's continued economic engagements with Russia.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.