Who owns the massive copyright of Jason's singing?

In Tianyu, "Vast" is a song written by Tan Xuan and sung by Jason. This song is the theme song [1] of Chen Xiao TV series "The Condor Heroes" on 20 14, which was included in Jason's album "Pick Up" released on 20 15. The New Year TV series "The Condor Heroes" produced by Huaxia Audio-visual and produced by JUNG WOO Studio landed at Hunan Satellite TV Diamond Solo Theater at 22: 00 on February 3, 20 14. The theme song of the TV series "The Wild" was sung by singer Jason. Because this song was written and composed by Tan Xuan.