The International Thermonuclear Fusion Experimental Reactor Program (ITER), headquartered in southern France, held a press conference on the 3rd to introduce a new project roadmap known as the "baseline". According to the new roadmap, ITER's planned goals remain unchanged, but the start of the deuterium tritium fusion experiment phase will be postponed to 2039, resulting in an additional cost of 5 billion euros. It is reported that according to the roadmap formulated in 2016, ITER originally planned to generate the first plasma beam in 2025 and begin deuterium tritium fusion experiments in 2035. However, due to the supply chain delay caused by the COVID-19 epidemic and the need to repair some key machine parts, the original plan has been recognized as no longer a "feasible, practical or ideal" option. According to the new roadmap, the deuterium tritium fusion experimental phase is expected to start in 2039, which is delayed by 4 years from the original plan. ITER Director General Petro Barabaski said at a press conference that the new "baseline" no longer takes "symbolic generation of the first plasma" as the first important milestone in the operational phase of ITER, but starts with "substantial research on plasma". This is a robust start, allowing us to make up for some of the accumulated delays in the project and better mitigate risks in achieving project goals. The baseline also changed the material for the "first wall" of fusion reactors that can withstand extreme high temperatures from beryllium to tungsten. Barabaski explained, "This modification makes our experiment more meaningful for the next stage of the device.". Barabaski explained that the roadmap adjustment will result in an increase of 5 billion euros in ITER's costs. The baseline was submitted to the ITER Board for approval in June this year, and will serve as a reference for work during the evaluation period. ITER is currently one of the largest and most far-reaching international scientific research cooperation projects in the world, aimed at simulating the nuclear fusion process of the sun and exploring the commercial feasibility of controlled nuclear fusion technology. The European Union, China, the United States, Japan, South Korea, India, and Russia jointly fund this project. (Lai Xin She)