1. Contact the local cemetery or funeral home to find out the relevant procedures and fees.
2. Contact the local embassy or consulate of China for relevant procedures and requirements.
3. Go through relevant formalities, including handling exit permits, entrusting the funeral home to dispose of the remains, and obtaining death certificates and cremation certificates.
4. Documentary documents for applying for transporting ashes, such as "ashes certificate of international transporters", "cremation certificate" and "cinerary casket certificate of funeral parlour".
5. Put the ashes in a proper container and pack them properly according to the international transportation regulations.
Specific procedures and requirements can be different according to the situation. It is recommended to consult relevant local departments and institutions in detail to ensure that all procedures are complete and legal.