There are two methods for applying to register your trademark in China.
Submit your application directly to the China National Intellectual Property Administration (CNIPA). Since trademark applications can only be submitted by a person or entity resident in China, you will generally need a Chinese law firm or service provider to do this.
You can engage a service provider in China directly yourself, or you can work through your law firm or IP service provider in Canada. If your Canadian service provider does not have a presence in China, they will also need to engage a service provider in China to assist them. The TCS maintains a list of IP service providers in China.
The second method is through what is known as the “Madrid System”. This allows you to register your trademark in multiple countries through a single, streamlined application process. This process is generally initiated in the country where you have already registered or applied for a national or regional trademark.