[4] THTI promotes the development of textiles and garments and helps business operators enhance their competitiveness.

[5] THTI also works with textile and clothing manufacturers to improve their design, management, and brand-name development and to establish relationships with foreign firms.

[8] THTI also contributes to regional and international reporting and information sources such as the 2010 Guide to Investment Regimes of APEC Member Economies (7th Edition).

Mr. Virat Tandaechanurat, THTI's former executive director, said that as part of the effort to boost the industry’s success, in 2004 THTI launched the “Trendy Fabric Manufacturing by SMEs” project — aimed at improving the competitiveness and textile quality of smaller firms’ and established clusters of factories to provide one-stop shopping for buyers.

[12] Another project they participated in was a collaboration with Rajamangala University of Technology Thanyaburi (RMUTT) to develop green coconut fibers to produce textile products with special antibacterial features that suit the elderly.

[14][15] In 2017, THTI and 22 cloth producers collaborated in the Electricity Generating Authority of Thailand (EGAT) Energy Efficiency Label No.