HAIKOU, China, Aug. 2, 2024 /PRNewswire/ -- Haikou, the capital of Hainan Province, is a pivotal city in China's "Belt and Road" initiative and the core city of the Hainan Free Trade Port. As the political, economic, scientific, and cultural center of Hainan, Haikou boasts a tropical climate and picturesque coastal scenery. With an average...