ROSMUN club was founded in 2008. Gradually, a growing number of delegates joined the club and so the decision was made to hold an annual conference. ROSMUN club members meet weekly to debate crucial issues affecting our globe; furthermore, they organize training sessions for new delegates, hold several simulations, and assist in organizing ROSMUN conference. Rosary Sisters’ delegations yearly participate in numerous international MUN conferences worldwide.

Rosary Sisters’ High School MUN conference 2018 (ROSMUN) is a three- day conference. It includes seven committees: Disarmament Committee, Human Rights Committee, Political Committee, Environment Committee, Special Conference, Economic and Social Council, and Security Council. Delegates in each committee are supposed to write policy statements and to prepare draft clauses on the issues listed on the conference’s agenda as the form of debate is clause based.