16:25 02/8/2021 Mamison Age Revealed for the First Time (Personal Official) () Mamison and Jin Yongjin, who are promoting 7-year-old wild ginseng on a channel called Marjin Boy, are suddenly…?Are you 17 years old?Mamison says she’s 17 years old. How useful was this post? Click on a star to rate it! Submit Rating Average rating / 5. Vote count: No votes so far! Be the first to rate this post.