https://www.klm.com/travel/CA_en/pre...c/visaform.htm
National Hong Kong (SAR China) (HK)
Embarkation United Kingdom (GB)
Destination China (People's Rep.) (CN)
Passport required.
- Passports and/or passport replacing documents must be valid on arrival.
Passport Exemptions:
- Holders of a "Mainland Travel Permit for Hong Kong and Macao Residents" (pink credit-card format).
Visa required, except for Holders of a "Mainland Travel Permit for Hong Kong and Macao Residents" (pink credit-card format) .