Even though streetwear brand Supreme doesn't have a single store in China, you'll probably see it in almost every major Chinese city. While the brand selling "Supreme" in China might not be the original from New York, it is a testament to the immense popularity of streetwear in China. Last year, Chinese spending on luxury streetwear goods rose by 62%.  And as the industry grows, foreign brands are trying to capitalize, while Chinese streetwear labels aim to expand abroad. In the video above,…