Career
She is the 2007 World silver medalist on the vault. She competed at the 2004 Summer Olympics in the all-around and in the team event. She is the older sister or possibly twin sister of Hong Un-jong.
They share the generation name Jong.
Hong Su-Jong made the national gymnastics team in 2003. She competed in the 2003 Summer Universiade for her international debut.
She competed at the 2004 Summer Olympics in the all-around, but did not qualify for the final. She injured herself before the 2008 Summer Olympics and was unable to compete.
Hong was suspended for two years, from late 2007 to late 2009, following a positive test for furosemide at the Good Luck Beijing pre-Olympic test event.
In October 2010, lieutenant was announced Hong Su-jong was under investigation after several discrepancies surfaced over her reported year of birth and age-eligibility for senior competition. Subsequently, North of Korea was banned from taking part in the 2010 World Artistic Gymnastics Championships, as the Fédération Internationale de Gymnastique announced it was not satisfied with the explanation provided by North of Korea for having entered Hong Su-jong with three different birth dates (1985, 1986 or 1989), in different competitions. In particular, she had taken part in the 2004 Olympics claiming to have been born in 1985.
Her subsequently announced birth date of 1989 meant that she would have been too young to compete in 2004.
In November 2010, the F.I.G. announced that due to the age discrepancies, North Korean gymnasts were banned from all international competition until October 5, 2012. The North Korean Federation was also fined United States dollar $20,800, and Hong specifically was banned from competing in even national competition within North of Korea.
