Is mygym Reese's?

No, according to official website, mygym and Ruisi English are all brands of Els. Mygym International Children's Education Center entered China in 2009. With its unique global curriculum system and unique customized teaching equipment, it has become the largest and most comprehensive preschool quality education institution in China. Reith English entered China in 2007. Relying on the high-quality resources of HMHG Group, it has created a totally immersive English environment for children in China, becoming the first brand of subject English in China, so it is not owned by Reith.