The two campaigns are: "Thailand, Medical and Wellness Resort of the World" and "Thailand, World's Shopping Paradise".
Foreign tourists reportedly account for 60 per cent of the country's tourism income.
TAT will also launch a two-month Amazing Thailand Grand Sales 2020 from July 15 to September 15 in five provinces -- Bangkok, Chiang Mai, Phuket, Hat Yai and Pattaya -- featuring 10,000 offline and online businesses, to encourage local and foreign tourists to part from their money.
The campaign will also bolster Thailand's image as a shopping destination.
He added that the fair is expected to generate cash flow of Bt1.5 billion into the economic system, higher than last year's Bt1.4 billion.