On December 10, 1998, the Department General of Posts & Telecommunications (DGPT) issued the stamp set "6th ASEAN Summit - Hanoi’98," featuring a single stamp valued at 1,000 VND. The Summit aimed to enhance solidarity and cooperation among ASEAN nations, promoting peace and development. The stamp design, created by Mr. Do Lenh Tuan, symbolizes ASEAN's unity and collaboration. It includes a central ASEAN emblem surrounded by a geometrically shaped pink flower, representing friendship, while a white bird signifies peace. The artistic elements reflect the aspirations for balanced growth amid the economic and political transitions of the late 1990s.