Group 1 - The core viewpoint of the article highlights that in 2025, the import and export value of the nine cities in the Guangdong-Hong Kong-Macao Greater Bay Area reached 9.15 trillion yuan, representing a year-on-year growth of 4.7% [1] - The import and export value accounted for 20.1% of the national total, indicating a significant contribution to the overall foreign trade of the country [1] - The Greater Bay Area contributed over one-quarter of the incremental growth in national foreign trade [1]