Eco-leather Mark, which is extended from Genuine Leather Mark, refers to the title used for finished leather that is qualified for the certification of Genuine Leather Mark. The Eco-leather Mark stresses the environment protection of tannery and the healthy performance of finished leather. In addition to essential qualifications for the Genuine Leather Mark, the leather must meet state and industry quality standards, as well as relevant requirements and regulations in the Specifications on Eco-leather Mark, which address the four special chemical indexes of the leather industry related to environment (hexavalent chrome, prohibited azo dyes, pentachlorophenol and formaldehyde).