Other industries include the manufacture of plastics, electrical and electronic equipment, appliances, metal products, rubber products, chemicals, watches, jewelry, and toys. Shipbuilding, machine tooling, and other heavy industries are also important. Tourism is a major source of revenue, in addition to motion-picture production, insurance, and publishing. As the city has grown, large sections of Victoria Harbor have been filled in to provide space for office buildings, a convention center, and highways. Rice and a variety of vegetables are grown, but most food is imported from mainland China.
Fishing is a common occupation.
7 Hong Kong's rail link with the mainland is by the Kowloon-Guangzhou Railway. The colony prospered as an east-west trading center, the commercial gateway to, and distribution center for, S China. It was efficiently governed, and its banking, insurance, and shipping services quickly became known as the most reliable in SE Asia. It was reoccupied by the British on Sept. 16, 1945. After 1949, when the Communists took control of mainland China, hundreds of thousands of refugees crossed the border, making Hong Kong's urban areas some of the most densely populated in the world.