The Dachan Bay Low-Carbon Building Materials Competition, the second phase of the Carbon Searching Plan, was jointly launched by Tencent and global industry, investment and ecological partners. It aims to solve the core bottleneck in the process of decarbonization of buildings and accelerate low-carbon. Scenario implementation and large-scale promotion of building materials technology. The competition will focus on key directions such as low-carbon innovation of cement-based building materials, research and development of carbon-sequestration building materials, and application of bio-based building materials, and explore solutions that are both technological breakthrough and engineering practical. At present, the project is open to forward-looking technical teams around the world, which will promote the implementation of benchmark projects with demonstration effects, support start-ups with high economic potential, consolidate underlying technical capabilities, and strengthen basic capacity building for low-carbon transformation and innovation.