The Hong Kong-Zhuhai-Macao Bridge is a world-class super-large cross-sea passage connecting Hong Kong, Zhuhai, and Macao. With a total length of 55 kilometers, its main project — the "sea bridges and tunnels" — stretches 35.578 kilometers, including an approximately 6.75-kilometer undersea tunnel. It is the world's longest cross-sea bridge, the longest road immersed tunnel globally, and the only deep-buried immersed tunnel in the world.

With its internationally advanced and independently developed patented MMJ technology, Changyuan Electric Power helped resolve key technical challenges, ensured the stability of the power transmission system, safeguarded the structural safety of the bridge, and contributed to the lighting-up of the Hong Kong-Zhuhai-Macao Bridge — demonstrating the technology and expertise of Changyuan Electric Power.