Its registered office is located in Lausanne, Switzerland.

The Mahjong International League (MIL) was founded in 2015, and it was registered in Lausanne, Switzerland.

"Mahjong International League Establishment Ceremony" was held on May 11, 2015 in Diaoyutai State Guest Hotel in Beijing, China.

The 1st World Mahjong Sports Games (WMSG) was held from 24 to 28 October 2015, in the city of Sanya, Hainan Province, China.

[4] On February 26, 2016, MIL was recognized as an observer by International Mind Sport Association (IMSA) after a presentation by Frank Ng, the president of MIL.