For a foreign citizen living in Sweden, documents to be used in China should be notarized first by a local Notary Public and then authenticated by the Ministry of Foreign Affairs of Sweden before being submitted to the Application Center.
For a Chinese citizen, if documents can not be notarized by Chinese Embassy or Consulate-General, documents need to be first notarized by a local Notary Public and then authenticated by the Ministry of Foreign Affairs of Sweden before submission to the Application Center.
Documents of a third country should be authenticated in that country. If a citizen of a third country living in Sweden applies for passport authentication, his/her application can be accepted by the Chinese Embassy / Consulate-General in Sweden if it has been notarized by the country's embassy in Sweden.