Why is it worth returning used cartridges to us? Ecomind is the largest and most convenient collection program for used printer cartridges in Poland. In 12 years, we collected 20,000,000 used cartridges. ... "Tree Day" - by returning the cartridges you help plant trees The Tree Day is an ecological education program run by Klub Gaja since 2003. Thanks to our support (from the collection of cartridges), 18,000 trees have been planted so far. ... How to return used cartridges? It is very easy. We accept all laser and inkjet cartridges. It is enough to: 1.Send a request to return the cartridges or order a container by providing basic information (company name, address, contact details) to the e-mail address: biuro@ecomind.pl ... © Copyright 2012 Ecomind | All Rights Reserved design and implementation of logoareas