Fair Stone standard
The Fair Stone standard, also referred to as "fairstone", is a social and environmental standard for the global natural stone industry developed in 2007 by WiN=WiN GmbH – Agency for Global Responsibility, a German consulting agency, in conjunction with the mining section of the International Social Security Association (ISSA) and other international advisors. Fair Stone e.V., a non-profit organisation promoting the standard, was founded in 2014.