Erchim

In 2020, Erchim disappeared from the league table under its own name. It had merged with Khaan Khuns Titem, itself a club that had already changed identity twice, from Black Morgan to Khangarid City, and the combined side, Khaan Khuns-Erchim. Only after that second championship did the club drop the borrowed name and return to being simply Erchim.

4 in Ulaanbaatar; some trace the team back to 1948, though the professional club dates its own founding to 1994 and entered the Premier League for the first time in 1996.

Erchim plays at the MFF Football Centre, a 5,000-capacity ground once known as Erchim Stadium, and its rivalry with FC Ulaanbaatar has sharpened as the derby's stakes changed. Erchim spent years as the dominant side; FC Ulaanbaatar only emerged as a genuine title threat in the 2010s, and the two clashed directly for the championship in 2022, when Khaan Khuns-Erchim held them off. Since then the club has slipped out of the top flight and into the Mongolian First League.