The first unit of China Natural Conclusion refers to the supporting unit that undertakes the project of the National Natural Science Foundation, that is, the subordinate unit to which the main project leader belongs. As one of the proof materials of achievements, the concluding article should reflect that the supporting unit has completed relevant scientific research tasks and achieved corresponding results according to the requirements of the Fund Committee. In publishing and dissemination, it needs to rely on support units to provide recognition and support. This can ensure that the closing report truly and accurately reflects the work and contribution of the project in a specific organization.