Buy social security 14 years in Sihui and 1 year in Shenzhen. Wherever I retire, I will take it with me.

Both places are fine. You have paid social security in Sihui and Shenzhen. You can consult the social security centers of the two places or the human resources and social security departments about your payment records and collection, and choose where to receive retirement security benefits. According to the provisions of the Social Insurance Law, as long as the social security payment period and retirement age are met, you can receive the corresponding pension insurance benefits anywhere.