Discover soon the collections that will participate in the 21st UPU Competition Class 2026! Registrations are currently open, and the participating Posts will be announced in due course. It will be on display at the following partner international philatelic exhibitions: 

• DUBAI 2026, Dubai, United Arab Emirates, 4 to 8 February 2026;
• BOSTON 2026, Boston, United States of America, 23 to 30 May 2026;
• MACAO 2026, Macao, China, 26 June to 1 July 2026;
• STAMPEX 2026, London, United Kingdom of Great Britain and Northern Ireland, 28 to 31 October 2026;
• MONACOPHIL 2026, Monaco, November/December 2026.

Find all the images of the stamps presented in high definition, with their technical data, and access the Posts' e-commerce platforms at wnsstamps.post.