Utilize the input text as a context reference, choose the right relationship between Samsung and Seoul 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.

Bearish Outlook Shares of Samsung fell to 1,185,000 won in Seoul on Friday, down from 1,268,000 won on June 30.

Answer: location_of_formation