CDSE has made a successful connection between ISS, HNUE and the Hong Kong Federation of Education Workers.
In January 2012, the HKFEW paid an official visit to Vietnam to meet with ISS, HNUE and to establish a long-term cooperation with ISS and the CDSE. This event has been an impetus for HKFEW to send their students to Vietnam on a Culture Exchange and Language Training program to be conducted in July-August 2012 and in the following years.