All visitors to China must meet the following entry requirements:

- Valid travel document (with a minimum validity of 6 months);
- Onward/return ticket;
- Entry facilities to next destination;
- Sufficient funds to stay in China;
- Visa for China (*if applicable).

Visa-free policy

Unilateral visa-free policy: Brunei, France, Germany, Italy, Spain, Holland, Malaysia, Switzerland, Ireland, Hungary, Austria, Belgium, Luxembourg, New Zealand, Australia, Poland, Portugal, Greece, Cyprus, Slovenia, Slovakia, Norway, Finland, Denmark, Iceland, Andorra, Monaco, Liechtenstein, Korea, Bulgaria, Romania, Croatia, Montenegro, North Macedonia, Malta, Estonia, Latvia, and Japan.

Mutual visa-free policy: The United Arab Emirates, Barbados, Bahamas, Bosnia and Herzegovina, Ecuador, Fiji, Grenada, Mauritius, San Marino, Seychelles, Serbia, Tonga, Belarus, Qatar, Armenia, Albania, Dominica, Suriname, Maldives, Singapore, Thailand, Georgia, Kazakhstan, Antigua and Barbuda, Solomon Islands.

List of Agreements on Mutual Visa Exemption Between the People’s Republic of China and Foreign Countries

Request for Visa Application Document(s) - Invitation Letter
If, for visa purposes, you require an invitation letter to allow you to travel to China, please email ivsc@mdpi.com the following details to the conference secretariat:

- Photocopy of your passport;
- Name (as it appears on your passport);
- Passport number;
- Nationality;
- Date and Place of Birth;
- Place of Issue;
- Date of Issue: dd/mm/yyyy;
- Expiration Date: dd/mm/yyyy;
- Country of departure;
- Job title;
- Organization;
- Mailing address;
- Email.

Kindly ensure that you have completed your registration and made payment before sending in your request for your visa application document(s) to the conference secretariat. The document(s) will be prepared and sent by email. Failure to provide the above information will result in the delay of your invitation letter.