Helen Sibum from www.deutschland.de writes:

"The Grüner Knopf is a label initiated by the [German] Federal Ministry for Economic Cooperation and Development guaranteeing high ecological and social standards in textile production.

The Danish manufacturer Beirholm was the first non-German company to receive the certification. In an interview with deutschland.de Peter Beirholm and Andreas Beirholm say what they find attractive about the German label and why they think it will become even more international."