Rim proved successful in the 69kg category of women's weightlifting at the 30th Olympic Games held in Juche 101 (2012) and in the 75kg category of women's weightlifting at the 31st Olympic Games to become a twice Olympic gold medalist.

At that time, her victories were praised and widely reported by media of foreign countries.

She also won victories at the 6th East Asian Games, the 29th Summer Universiad and the 18th Asian Games and the IWF World Championships, the Asian Weightlifting Championship and the IWF World Cup held in 2019.

And she obtained gold medals in the women's 63kg category jerk of the 2011 World Junior Weightlifting Championships and in the women's 76kg category snatch of the 2018 IWF World Championships.

She was awarded the title of DPRK Labor Hero in 2012, the title of People's Athlete in 2016 and Kim Jong Il Prize in 2019.