South China's Guangdong province, known to many Arab, Asian, African and European traders, is of particular importance. In addition to Guangzhou, which is famous for its trade fair held since 1957, it is home to several emerging economic and industrial cities, overlooking the Greater Bay Area, which includes Hong Kong and Macau.

Shenzhen and Qinhai are the last of Hong Kong and Macao's nine neighbors upwards, and with them 11 Chinese cities are economically integrated.

Last December, a trade conference on "Greater Bay Area Development" was held in Hong Kong for the second year in a row with more than a thousand officials, investors and businessmen from home and abroad, including Hong Kong, Macau and the cities of the geographically corresponding Guangdong province.

In a country with a vast area along with its population, "developmental geography" is an essential element in the implementation of the economic plans of a country that has become economically and technologically competitive with Western and Asian countries, and each region in China is distinguished in some aspect of production, industry, development or export.

This urban, technical and economic phenomenon is based on catching up with Hong Kong as a world-famous economic and financial hub, and seeks to make Hong Kong a "lever" and "window" for its nine neighbors, each of which has features and attractions no less than Hong Kong's past and present.

China aspires to make the Greater Bay Area a "hub for innovation and technology" in the south of the country, and includes 9 cities or municipalities, as follows:

Guangzhou, the provincial capital of the famous annual trade fair, and the commercial capital of China, is home to 80 universities, about a million university students and more than 100,000 companies and technical businesses.

Gaocheng, the city is culturally, historically and touristically famous.

Khoi Gu, known for its port, petrochemical and information electronics industries, in which ExxonMobil invested $ 18.97 billion until the end of 2022, has huge natural resources, including about 30 varieties of minerals, a good living environment, many tourist areas, agricultural production of rice and others, and good areas of forests, which explains the quality and purity of the air.

Foshan, famous for furniture, household appliances, pottery, opera, Chinese medicine, martial arts and other folk arts.

Dongguan, the global industrial hub that produces about 60,000 products in about 40 sectors and supplies about 90 percent of electronic parts, including mobile phones, is home to some 5,700 Chinese companies that integrate with Shenzhen and Hong Kong.

Zhongshan, a major transport point on the west bank of the Pearl River, and an industrial zone where many industrial experiments are conducted in Guangdong province, and includes the manufacture of home furnishings, textiles, fabrics, lighting, health products, medicines and boats, and in its port a number of major state companies such as the Shipbuilding Company, the Train Company, the Offshore Oil Company, and the Iron and Steel Company.

Jiangmin is the favorite city for Chinese returning from countries where they emigrated and worked.

Zhuhai, home to the defense and air exhibition grounds, is the only city on mainland China connected to Hong Kong and Macau following the completion in 2018 of a 50-kilometer bridge between the three metropolises as the longest overwater bridge in the world, which was crossed in 2024 by 27 million people or 5.5 million cars.

Shenzhen, the ninth city, is the "Silicon Valley of China" home to startups.