The conference papers retrieved by ssci don't need to spend money, and you can choose to publish them in free pages. However, if you want to issue a paper retrieval report, that is, you have to hand it over to the sci-tech novelty retrieval station. Generally, there is a charge.

Paper retrieval means that you can search the designated papers in relevant journals online to prove that the articles are of high level, and then you can use the retrieval certificates issued to evaluate professional titles, receive bonuses, get promotions, etc.