Shenzhen, also known as "Pengcheng" , is located on the coast of the South China Sea, adjacent to Hong Kong and Macao. lt is the core engine of the Guangdong-Hong Kong-Macao Greater Bay Area, an important window for China’s reform and opening up, a national innovative city, an international garden city, an important international air and sea hub and foreign trade port, and one of the cities with the best business environment in China. Over 300 Fortune 500 companies have invested in Shenzhen, and the total economic volume of Shenzhen has entered the top five cities in Asia, creating a miracle of industrialization, urbanization and modernization in the world.