Invitation letters
The conference secretariat issues electronic invitation letters (PDF with electronic signature and conference seal), sent by email after approval, both to delegates with paid registration and to authors of accepted papers.
How to apply: ① confirm your eligibility (paid or accepted) → ② submit the online form below → ③ the secretariat reviews within 3–7 working days → ④ the signed PDF invitation is emailed to you.
Tip: Chinese visa processing normally takes 2–4 weeks, so please apply early — during peak seasons (March–May) we recommend submitting at least 2 weeks ahead. Visa information in the form must be in English and match your passport exactly. If you run into a problem with the form, email secretariat@icdcs2027.com with the subject Invitation Letter Application.
Check application status
Use the same Ref No. + token / email to check progress at any time.