QS and trademark are two different things and have nothing to do with each other.

A trademark is a sign used to distinguish the source of goods or services.

QS is the abbreviation of quality safety in English. It is a production license, which is the process and quality requirements that must be met to produce this product. QS is an important symbol to ensure food quality and safety, and is in line with quality and safety Foods subject to market access conditions will be marked with the QS mark.