Group 1: Infrastructure Development - The successful installation of a 30-meter, 106-ton box girder marks the completion of the first prefabricated box girder for the Chengyu Expressway expansion project [1] - The Chengyu Expressway, built 30 years ago, is undergoing expansion to address issues of narrow roads, sharp turns, and steep slopes [1] - The expansion project is part of the broader Chengdu-Chongqing Economic Circle initiative, aimed at creating a significant economic center and innovation hub [1] Group 2: Economic Growth and Investment - Chengdu's GDP has increased from 1.7 trillion yuan in 2019 to 2.35 trillion yuan in 2024, averaging an annual increase of 100 billion yuan [7] - In the first three quarters of 2025, Chengdu's GDP growth rate reached 5.8%, indicating stable economic performance [7] - A recent investment conference in Chengdu resulted in the signing of 16 major industrial projects, totaling over 82.53 billion yuan [3] Group 3: Technological Innovation - Chengdu has established a high-level innovation system, including one national laboratory and four national innovation centers [8] - The city has achieved significant breakthroughs in nuclear fusion technology, with the "China Circulation No. 3" project reaching dual temperatures of one hundred million degrees Celsius [8] - Chengdu is promoting the transformation of scientific achievements into market applications through various innovation support initiatives [8] Group 4: Regional Cooperation - Chengdu and Chongqing are enhancing their collaboration through joint initiatives in transportation, manufacturing, and scientific innovation [12] - The two cities have established a comprehensive transportation hub, with daily high-speed train operations averaging 101 pairs and a passenger flow of 189,000 [15] - The Chengdu-Chongqing Economic Circle is focusing on building a world-class advanced manufacturing cluster, particularly in the electronics sector [15] Group 5: Quality of Life and Public Services - The two cities are working together to improve public services, including healthcare and education, enhancing the quality of life for residents [17] - Initiatives such as cross-province mutual recognition of medical insurance payment years have been implemented to break regional barriers [17] - The collaboration has led to increased public satisfaction and a sense of security among residents in both cities [17]