The main documents for an overseas application include:
(1) Basic Documents: Application Form for Foreigner's Work Permit in China, employment contract or appointment certificate, applicant's passport (valid for no less than 6 months), entry visa, and a bareheaded full-face photo taken within six months, etc.
(2) Qualification Documents: work qualification certificate, highest academic degree (or diploma) certificate along with its authentication, and professional qualification certificate(s), etc.
(3) Certificate of No Criminal Record: Issued by the police, court, or other relevant authorities in the applicant's country of nationality or country of habitual residence, and authenticated by the Chinese embassy or consulate in that country.
(4) Certificate of Physical Examination: Issued by a Chinese inspection and quarantine institution or an overseas health and medical institution recognized by it, with an issuance date within the last 6 months.
(5) Other Documents.

Chinese source: xiangtan.gov.cn