Group 1 - The core investment in the Chongqing key projects, namely the Chengyu expansion and Dianfengwu projects, has reached 3.55 billion yuan, achieving 42% of the annual investment target for the first five months of the year [1] - The Chengyu expansion project is a collaborative investment by multiple central and state-owned enterprises, covering a total length of approximately 100 kilometers with an estimated total investment of about 19.3 billion yuan [2] - The project aims to enhance traffic capacity between the Chengdu-Chongqing economic circle, significantly improving connectivity and promoting regional economic integration [5] Group 2 - The Dianfengwu project spans approximately 160 kilometers with an estimated total investment of about 32.573 billion yuan, and is expected to reduce travel time significantly between various regions [5] - The completion of these projects is anticipated to boost local tourism, rural revitalization, and economic development, contributing to regional cooperation and the construction of new transportation corridors in the western region [5]