No need. The National Development and Reform Commission is mainly responsible for the formulation and adjustment of macroeconomic policies, and does not directly participate in the examination and approval of specific products or technologies. Conductive 6-inch silicon carbide ingot belongs to a kind of material, and its approval is more related to the evaluation and approval of departments in science and technology, industry or related industries, which is not within the scope of approval of the National Development and Reform Commission. The project approval of specific products or technologies is usually the responsibility of the relevant industry authorities, science and technology departments or local government departments, and the specific project approval process needs to be operated according to the regulations and requirements of relevant departments.