ONS has been participating in major events sponsored by the CIER. In this context, it highlights the IntegraCIER Congress, held in November in Punta del Este, when the fiftieth anniversary of the CIER was celebrated.

As Brazilian representative in the Operators Working Group and Market Managers, ONS continues participating in Operation subgroup, consisting of the leading operators in Latin America. There is the participation in SIGER Project / Atlas, which aims to develop a data manager system for regional energy integration and a regional geographic atlas georeferenced, and Operators Mentioning Project in Latin America, in order to know the best operating practices and thereby continue to improve the processes.