Since the recognition of their existence, at specific intervals, the fate of the "earth dragon" species has been classified according to different conservation levels. Therefore, various authorities have employed diverse methods to search for and preserve this rare and precious dragon species.

On the afternoon of November 20, the Thua Thien Hue Provincial People’s Committee and the authorities of Kyoto Province (Japan) held a signing ceremony of a memorandum of understanding (MOU) to establish friendly and cooperative relations between the two sides.