I am starting a yoga mat business in France, and want my mats to be aco friendly, I found out that cork and a natural rubber base is the best combo to have a prenium eco frendly product. One of my only concern is the origin of the raw materials and I could't find anything on your website. Can you please let me know where the cork is coming from? Same for the natural rubber, how can I know everything is harvested in an eco-friendly way? I would also like to have a sample product in order to test it before launching production, is that possible? Can I customize the sample? Thank you very much for your reply, Best regards. Angélina