Group 1 - The Shantou-Meizhou Expressway expansion project, the first of its kind in Guangdong's mountainous and hilly areas, spans approximately 88 kilometers and is set to be completed by 2026, expanding from a dual four-lane to a dual eight-lane highway [1] - The project emphasizes green, low-carbon, and efficient construction principles, achieving multiple environmental innovations in resource recycling, energy conservation, and construction process innovation [1] - The project introduces a new "precast T-beam lifting and rotating technology," which allows for the reuse of existing bridge beams, filling a technological gap in Guangdong's highway bridge renovation [1] Group 2 - The project excels in the "turning waste into treasure" approach, utilizing mobile and fixed stone production lines for recycling and processing, significantly reducing the need for external stone purchases and waste disposal [2] - Approximately 1.84 million tons of crushed stone were produced from the processed earth and rock materials along the entire route, equivalent to the load capacity of 60,000 fully loaded heavy trucks, achieving "zero external transportation of waste and full resource recycling" [2]