In 2009, Jun reached the Samsung Cup Final with a chance to win his first world championship.

By Chinese Special Promotion rules, Jun was raised to the rank of 9-dan, being China's 31st 9-dan player.

He subsequently lost the final to Korean rising star Park Junghwan.

Jun joins a selection of players who have reached multiple World Championship Finals without victories in any.

This biographical article relating to a Go figure from the People's Republic of China is a stub.