http://www.mfa.gov.sg/content/mfa/overseasmission/shanghai/consular_services/notarial.html

All documents issued by the Singapore Government Departments (eg. Registry of Marriage Certificates, Birth Certificates and Educational Certificates from local government schools) in their original text will be directly legalised by Ministry of Foreign Affairs (MFA). However, computer generated documents eg. Registrar of Marriage Search, Certificate of Making Decree Nisi Absolute, Adoption Petition, Business Profile from ACRA etc, must be certified by the issuing department first before presenting to MFA for legalisation.

For legalisation of true copies, please present the photocopy together with the original document for verification.

After the legalisation by MFA, the documents should then be brought to the Chinese Embassy in Singapore for authentication. For more details, visit the website of theChinese Embassy in Singapore.