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).
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