You need to go to the industrial and commercial office in your jurisdiction to change the business scope. If you change it, it will be quite simple. You only need to bring a copy of your ID card and individual business license to the industrial and commercial office to change photos, and there is no handling fee. Article 22 of the Regulations on Individual Industrial and Commercial Households: If the registered items of individual industrial and commercial households are changed and the change registration is not completed, the registration authority shall order them to make corrections and impose a fine of 1500 yuan; If the circumstances are serious, the business license shall be revoked.

Extended data:

Regulations of People's Republic of China (PRC) Municipality on the Administration of Gold and Silver

Article 19 Units applying for dealing in (including processing and selling) gold and silver products, chemical products containing gold and silver, and recovering gold and silver from waste residue, waste liquid and waste containing gold and silver must be examined and approved by the People's Bank of China and relevant competent authorities in accordance with relevant state regulations and examination and approval procedures, and registered with the administrative department for industry and commerce before starting business.