The Japanese government provided assistance in inscribing the Complex of Hue Monuments on the UNESCO World Heritage List, and Mr. Nakagawa, the representative of this research, visited there in 1991 as a consultant under the UNESCO/Japan Trust Fund to provide technical guidance to the local parties involved with the Complex. The Hue Monuments Conservation Center (HMCC) was already active at this time, but the policy on cultural property conservation and restoration remained unclear. So, a lecture on Japanese, Egyptian, and Asian cultural property conservation and restoration techniques and research was delivered to cultural property officials gathered from across Vietnam. In addition, the Hue remains were inspected, and discussions on wooden buildings and general repair techniques were mad with the HMCC staff.
In 1995, Mr. Phung Phu, the Assistant Director of the HMCC, and Mr. Le Dang Truong, a carpenter, were invited to take part in cultural property conservation and restoration training course funded by the UNESCO/Japan Trust Fund for the preservation of the World Cultural Heritage. Then, a full-scale investigation of the Imperial Palace City of Hue and a restoration study on the Can Chanh Dien Court, which is the main complex of Tu Cam Thanh (Vietnamese Forbidden City), were undertaken with a grant from the Grants-in-Aid for Scientific Research provided by the Ministry of Education, Culture, Sports, Science and Technology.
Still continues collaborative and joint research between HMCC and the Hue University College of Sciences (Urban Planning), and established was the joint research center by renovating small palaces within the Imperial Court of Hue and facilities in the city. The center built a bilateral VPN information network and is accumulating academic data to facilitate the Conservation Science Center.