Dialogue with the Roman Catholic Church

The Joint International Commission for Theological Dialogue between the Catholic Church and the Oriental Orthodox Churches is the only official international dialogue (learn more here). However, there are also several ecumenical platforms that facilitate Oriental Orthodox-Roman Catholic dialogue at the national and regional levels. They are as follows:

The United States of America
The Official Oriental Orthodox-Roman Catholic Consultation in the United States of America

The United Kingdom and the Republic of Ireland 
The Catholic-Oriental Orthodox Regional Forum (COORF)

India
Malankara Orthodox-Roman Catholic Ecumenical Consultation Committee
Jacobite Syriac Orthodox-Roman Catholic Ecumenical Consultation Committee