You can invest in a private property overseas once you have met your 5-year Minimum Occupation Period (MOP).
Hope this answers your question.
You will need to serve your 5-year MOP before you can purchase another property overseas.
I am experienced and well-versed in both HDB and private transactions. I will be able to assist you in your property plans. Please get in touch with me for a more in-depth discussion.
Should you need require further assistance in matters relating to property, please contact me at my mobile 9748 6305. I will be happy to assess and share with you the possibilities for you in the current market.