Utilize the input text as a context reference, choose the right relationship between Haier and Qingdao 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.

Qingdao Haier Co., also a subsidiary of Haier Group, is listed on the Shanghai Stock Exchange (SHA: 600690) and focuses on driving innovation in smart home technologies.

Answer: headquarters_location