Permanent residency in the United States does not normally result in the loss of your foreign citizenship. That is because permanent residency in the United States is not the same thing as becoming a US citizen. Becoming a US citizen could result in the loss of foreign citizenship but it depends on the laws of the foreign country. It is always a good idea to discuss this issue with a legal professional in the specific country.
If you have any questions regarding immigration or US citizenship, please feel free to call me, immigration attorney Shawn Mesa at (813) 679-5780.
Disclaimer: This information is provided as a public service and not intended to establish an attorney-client relationship. Any reliance on this information is taken at your own risk.