The first major breakthrough was in 1957, when a team of technicians at the Cacia mill were the first in the world to produce paper pulp from eucalyptus using the kraft process.
This was the start of a journey which was to transform a Portuguese company, then known as Companhia Portuguesa de Celolulose, into one of the world's leading manufacturers of bleached eucalyptus kraft pulp (BEKP) and uncoated woodfree paper (UWF).