Guohe One is one of China's 16 national science and technology major projects. It took SPIC, the leading entity of the project, 12 years to complete the R&D and design of Guohe One in coordination with over 600 entities and more than 31,000 technical personnel nationwide, achieving fully independent intellectual property rights. Independent design and domestic manufacture have been realized in key equipment and materials of Guohe One, with the overall localization rate surpassing 90%. Guohe One has contributed over 7,000 intellectual property achievements and enabled 590 novel products, materials, technologies, equipment and software. It is widely recognized for its high safety factor, good economic performance and multiple innovative achievements, and represents the most advanced level of Gen III nuclear power technology in the world. Currently, with the technology R&D completed, the demonstration project proceeds as scheduled.