At the end of September 1928, the Tonkin Regional Committee (or Bac Ky) is said to have a "Reorganization Conference" near Hanoi to discuss approaches to 'proletarianize' their group.
The growth of ICP threatened the rest of Thanh Nien leaders in Cochinchina Regional Committee (or Nam Ky), i.e. the moderate faction in the Thanh Nien.