Hong Kong is a vibrant city, and a major gateway to Mainland China. Hong Kong's economy is characterised by free trade, low taxation and minimum government intervention. It is the world's 10th largest trading economy, with the mainland of China as its most significant trading partner. Hong Kong is also a major service economy, with particularly strong links to mainland China and the rest of the Asia-Pacific region.

At the south-eastern tip of China, Hong Kong covers Hong Kong Island, Lantau Island, the Kowloon Peninsula and the New Territories, including 261 outlying islands. Between Hong Kong Island and the Kowloon Peninsula lies Victoria Harbour, one of the world's most renowned deep-water harbours.
Excerpts from the webpage: https://www.gov.hk/en/about/abouthk/facts.htm