How to transfer the social security bought in Chengdu back to the famous mountain area of Ya 'an City?

Going to the local social security department to go through the social security transfer formalities requires an ID card, a social security blueprint and a social security card. The original company has gone through the social security transfer formalities, but now the company card is used to get the social security, and then you can go to the current social security department to make social security changes (the original town is changed to agricultural registered permanent residence), or directly let the current company continue to pay the original social security (town), but it will be more troublesome to receive pension and medical reimbursement in the future! If it is inter-provincial, it can't be done for the time being, but the new social security law stipulates that it can be transferred out after paying social security in the original social security department for 5 years!