David Broadfoot This is the info I got about 20 yrs ago from my embassy in Bangkok when my country changed its laws to allow dual citizenship... and they said that even if Thailand would require to renounce our current citizenship from birth my country would still recognize me as one of their own since one can never lose citizenship regardless the law in Thailand. And whereas Thailand may not specifically ask or force you to renounce your nationality, you may not make use of it and stand to be stripped of Thai citizenship if you do and are found out doing so... This includes using you former passport to enter Thailand, live outside Thailand for an extended period, etc. That is why I used the term “covertly”...