Hello, QS is a food production certification mark, not a trademark registration mark. During the period of setting up a factory, you can start business as long as you obtain a production license. For trademark registration, you can go to the local industrial and commercial administration Consult with the Administration Bureau or the Industrial and Commercial Office to apply for a trademark name first. Before the trademark registration certificate is issued to you, you can use the trademark name plus the letters TM. Generally, it takes one and a half to two years to register a trademark. The QS mark must be applied for by the Quality Supervision Administration.