Macao Post will participate the “Singapore 2015 World Stamp Exhibition”, located at Singapore, during 14th to 19th August, 2015. To commemorate this Exhibition, Macao Post issues the commemorative envelopes and provides the commemorative postmark cancellation service on site of the exhibition. For the convenience of the philatelist, the commemorative envelope with stamp priced at MOP4.50 will also be available for sale at the Philatelic Shop of Macao Post Headquarters starting from 14th August. You may send your mail of this cancelled commemorative envelope at the following locations *: Philatelic Shop at Macao Post Headquarters: 14th August 9:00 – 17:30 Post Offices: 14th to 19th August Office Hours to Public * No commemorative postmark cancellation service will be provided in Macao.