Usually, many countries have international agreements on the transfer of social taxes of all employed foreigner tax payers to their home country social funds. So, for example, you work in Turkey and pay the social/pension taxes there (along with your income tax). Then, Turkey transfers all paid social taxes to your pension/social fund account in your home country, so that when you retire, you receive your retirement money from that fund.
As you might know, Georgia does not have any social fund/pension taxation from monthly salaries, there is only income tax. Consequently, you do not accumulate any funds in your social/pension fund in your home country for your retirement.
Could you share your experience on this issue? How do you manage to pay you pension taxes?