Guangdong-Hong Kong-Macao Greater Bay Area, AKA GBA.As we all know is a megalopolis, consisting of nine cities and two special administrative regions in South China. Includes Guangdong province (Guangzhou, Shenzhen, Zhuhai, Foshan, Dongguan, Zhongshan, Jiangmen, Huizhou, and Zhao Qing) as well as the two Special Administrative Regions, Hong Kong, and Macau. To be honest, the development place of it is huge. Especially for Hong Kong, I believe Hong Kong will be the most important point in GBA. Why would I say that? It is because Hong Kong is a unique place to Mainland. It was a city for China to connect to the world in the past. As one of the world's leading international financial centers, Hong Kong is not only the preferred location for financial services but also home to many financial institutions. Hong Kong's financial markets operate under effective, transparent and international standards of supervision. Located in the heart of Asia, Hong Kong is closely integrated with the mainland and connected to the rest of the world. Hong Kong's advantages include a sound legal system, a simple and low tax system, a free flow of funds, a wide range of financial products, and a large pool of financial talents. In are economics. The GDP of Hong Kong is one of the highest in the GBA. Hong Kong can develop more in different ways in GBA.