Group 1 - The "Deep Sea No. 1" Phase II project has been fully put into operation, marking it as the largest offshore gas field in China, capable of supplying over 4.5 billion cubic meters of natural gas annually to the Guangdong-Hong Kong-Macao Greater Bay Area and Hainan [1] - The "Deep Sea No. 1" gas field has a proven geological reserve of over 1500 billion cubic meters and operates at the deepest water depth and highest temperature and pressure conditions in China, with a maximum temperature of 138 degrees Celsius [1] - The Shaanbei to Anhui ±800 kV UHVDC transmission project has commenced the core equipment electrical installation phase, with a total length exceeding 1000 kilometers and expected to deliver over 36 billion kilowatt-hours of electricity annually to Anhui by mid-2026 [1] Group 2 - The construction of the Chongqing to Chengdu high-speed railway's main navigation hole bridge has entered the steel beam construction phase, with the bridge being a key node for the railway and expected to be fully operational by 2027 [2] - The Jin-Ha Highway expansion project in the Panjin section has achieved mainline connectivity, spanning 238 kilometers and set to become the first long-distance ten-lane highway in northern China upon completion [2] - The construction of the station building for the Xining to Chengdu railway in Sichuan has commenced, which is a significant part of China's "eight vertical and eight horizontal" high-speed rail network, aimed at promoting economic and social development along the route [2]