A short introduction, for US readers, to each mainland-China chain this project follows — with a link to the company's own site in China and its US site where one exists.
A note on the links. Links to a company's own site in China are provided for reference and are untested by this project — they may be in Chinese, may behave differently outside China, and are followed at your own discretion. US sites are the ones to use for ordering or store hours.