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In page Russians:

"

After the Russian Revolution in 1917, many Russians who were identified with the White army moved to China — most of them settling in Harbin and Shanghai.[4] By the 1930s, Harbin had 100,000 Russians. Many of these Russians moved back to the Soviet Union after World War II. Today, a large group in northern China still speak Russian as a second language. Russians (eluosizu) are one of the 56 ethnic groups officially recognized by the People's Republic of China (as the Russ); there are approximately 15,600 Russian Chinese living mostly in northern Xinjiang, and also in Inner Mongolia and Heilongjiang.[citation needed]