Utilize the input text as a context reference, choose the right relationship between Sinopec and Beijing from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

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).

Answer: location_of_formation