The small difference between the Thai Tencel and Red Bull logos mainly lies in their meaning and shape.

1. Thai Tencel logo: Thai Tencel is the owner of the Red Bull trademark. Its logo is transliterated from the Thai of "Thailand Tencel Medical Health Care Co., Ltd." and consists of a red circle and silver Font composition. The logo represents the official brand of Tencel Thailand and the Red Bull beverage product line produced by the company.

2. Red Bull logo: The Red Bull logo is the trademark of the Red Bull drink. It consists of a red bull-shaped pattern on an orange background and gold fonts. This logo represents the brand image and market positioning of Red Bull Beverage.

In summary, the difference between the Thai Tencel logo and the Red Bull logo mainly lies in the different brands and products they represent, as well as the different shapes and colors of the logos.