Visa Information

The registrants must hold a valid document in order to enter China. Your entry requirements may change depending on your nationality, destination and staying time. Find out if you need a visa and about visa application guidelines on the following website:

Visitors from most countries are required to obtain a valid visa in advance to travel to China. In order to apply for a visa at the Chinese Embassy, you basically need to submit the following documents:
(1) Passport
(2) Visa Application Form and Photo
(3) Supporting Documents (invitation letter issued by Metfoam 2017)
(4) Proof of legal stay or residence status (applicable to those not applying for the visa in their country of citizenship)
(5) Photocopy of previous Chinese passports or previous Chinese visas (applicable to foreign citizens, those who were Chinese citizens and have obtained foreign citizenship)

Please note that passports should be valid for at least six months before you submit your visa application, and also remain validity and blank visa pages. It normally takes 1-2 months to process your visa application and may be longer depending on the application numbers in your country. To insure the schedule of conference, please allow yourself sufficient time for visa application.

Visit the Chinese Embassy website in your country to know how and where to submit a visa application. If you are from USA, UK, Russia, Germany, France and Japan, click the Chinese Embassy links below to get instructions.

General enquiries about visa applications, please contact the Chinese embassy or consulate closest to you. If any further advice or help is needed, you can also contact conference secretariat by email.

Need Invitation letter

Invitation Letter
After registration, the conference organizer will send you a letter of invitation via the online registration system. If you have not received it yet, you can request an invitation letter by sending email to or