Take context from the input text and decide on the accurate relationship between 'Sinopec' and 'Beijing' from the options provided.
Options: subsidiary, headquarters location, industry, currency

Bertoli also rates Tingyi Holding Corp (a maker of instant noodles and beverages in China), Astro Malaysia Holdings (a pay-TV provider), the Hong Kong-listed Beijing Capital International Airport and Sinopec Kantons Holdings (an oil terminal and pipeline provider in China).
headquarters location