It operates mainly in the newer suburban overseas Chinese communities, particularly in the Los Angeles, Philadelphia, and New York City areas.

[citation needed] Hong Kong Supermarket specializes mainly in imported Asian groceries.

Many items are from Mainland China, Hong Kong, Macau, Japan, South Korea, Thailand, Taiwan, Vietnam, Indonesia, and the Philippines.

[citation needed] In Southern California, its main competitors were 99 Ranch Market and Shun Fat Supermarket.

In 2009, Hong Kong purchased Super 88, an Asian supermarket chain which had already closed three of its six stores in 2008, citing poor sales.