The Myanmar Embassy in Singapore has announced that those who want to renounce their Myanmar citizenship can apply submitting the documents.
The applicant must submit Myanmar passport, original national registration card (if never applied for a NRC, a letter stating that you do not hold it), a copy of the household registration list (if not included in the household registration list, a letter stating that you do not include in it) and a copy of birth certificate and so on.
Additionally, they must also submit the application to renounce citizenship, resume and a request for proof of renunciation of Myanmar citizenship from the Singapore government and applications that cannot return the documents will not be issued a letter of endorsement.