The following 3 guiding rules are observed:

Thematic Diversity Selection of motifs related to the Chinese culture, the Macao culture, science and technology and of international relevance.

Credibility and Responsibility Pre-publication, in the Official Bulletin, of the quantities to be produced – which are never changed, even in case of quick depletion; thru the limiting of the issue’s quantities; and thru the exclusion of themes not relating to Macao, even if it could be previewed a great commercial success for it.

Product QualityTight quality control procedure; modern and pioneer printing techniques and a careful process of choosing designers for the stamps, souvenir sheets, etc.