It took Minh, the tournament second seed, only 37 minutes to beat the third seed Ponsana.
Olympian Minh beat three Thai players and one from the Republic ofKorea to win his first title of the year after missing the AvivaSingapore Super Series, Drajum Indonesia Super Series and Bingo BonanzaPhilippines Grand Prix Gold.
Minh also beat host rival Pakkawat Vilailak 21-18, 21-11 in thesemi-final on Saturday and Thai Tanongsak Saensomboonsuk in thequarter-final on Friday.
Last month, the HCM City-born athlete, who ranks 14 th in the world,shocked world No 1 Lee Chong Wei of Malaysia 24-22, 20-22, 21-19 in thesecond round of the Aviva Singapore Super Series.
Minh, 24, who became the first Vietnamese Olympian badminton player atthe Beijing Games last year, has secured three sponsorship contracts inthe past two months.
The 120,000 USD Thailand Grand Prix is the third season of BadmintonWorld Federation’s Grand Prix Gold and Grand Prix with 13 tournamentcontested./.