Chinese professionals on Tygem?

In his recent interview director of the Chinese Go Association Yang Yi said that internet Go is very useful for improving and that most of Chinese pros are active on Tygem. He noticed 3 names: Gu Li, Wang Xi and Zhou Heyang (all are 9p). All of them according to Yang Yi are active on Tygem, but he decided to keep the nicknames in secret.
We know a lot about Gu Li, but Wang and Zhou accounts are still unknown.