About us

The vision of KO-SI, d.o.o. is to stay the leading producer of products made of natural materials which are meant for human environment. Special care for customer's well-being and state of health is present in all operations of the company, which also reflects in our slogan

Only the best of what nature can offer.


With permanent development of technology and the application of new natural materials, not having been used for these purposes before, we also try to satisfy the highest expectations of our customers. KO-SI, d.o.o. is the right address for you: Using our products will improve your life quality.

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