Tongco was part of the Philippines men's national under-17 basketball team which won the 1st SEABA Under-16 Championship, where he was the tournament's top player in assists (3.0 APG).
In 2014, Tongco was part of the Philippines men's national under-19 basketball team that competed in the 23rd FIBA Asia Under-18 Championship which finished 5th with a 5-3 record [REF].