The Zero Discharge of Hazardous Chemicals (ZDHC) program has four new members -- the Sustainable Apparel Coalition (SAC), the Unione Nazionale Industria Conciara (UNIC), Seri.co of Centro Tessile Serico (CTS), and Covestro.

SAC is the apparel, footwear and home textile industry’s foremost alliance for sustainable production. The coalition’s main focus is building the Higg Index, a standardised supply chain measurement tool for all industry participants to understand the environmental and social and labor impacts of making and selling products and services. SAC and ZDHC share a large number of overlapping brands. UNIC is the representative of the Italian tanning industry, which employs 18,000 workers in approximately 1,300 companies and is a fundamental component of Italian manufacturing. CTS is a testing laboratory and product certification system. The company offers support services for production activities. Covestro is a world-leading supplier of high-tech polymer materials, including waterborne raw materials for textiles and synthetic leather. It provides technology and R&D support that enables the production of coated textiles and polyurethane synthetics without solvents.

The ZDHC program is a collaboration of leading brands, value chain affiliates and associate contributors working for sustainable chemical management. By joining ZDHC these organisations commit to supporting the goal of widespread implementation of sustainable chemistry in the textile and footwear industries.