2023Franking Labels, Sustainability and CTT - Environmental - Blue Mail - First Day Cover

Sustainable management of a company or public institution implies managing both the positive and negative social and environmental impacts of its activity, seeking to ensure long-term financial viability, maintain employment levels, and to make a positive contribution to society, now and in the future. It has been proven that this type of management makes for more resilient and competitive organisations. The Portuguese Postal Service, CTT, is the oldest ‘brand’ in the country and one of its best known and recognised.