Group 1 - The event "Sichuan-Hong Kong Infrastructure Investment Cooperation Enterprise Seminar" was held in Chengdu, focusing on promoting Hong Kong's infrastructure projects to Sichuan's construction sector [1] - The Hong Kong government has significantly increased infrastructure investment in recent years, with an average annual expenditure expected to rise to approximately HKD 120 billion [1] - Hong Kong is advancing numerous infrastructure projects, including the Northern Metropolis, artificial islands, public housing, hospitals, urban redevelopment, and transportation infrastructure [1] Group 2 - Hong Kong serves as a crucial gateway for mainland enterprises to expand their international presence, with increasing numbers of Sichuan companies leveraging the Hong Kong market for global development [2] - The number of western region enterprises participating in Hong Kong's infrastructure projects has been rising, with Sichuan companies leading in participation [2] - Engaging in Hong Kong projects allows mainland enterprises to showcase their technical capabilities and attract more global clients [2]