Traceability Origin and volumes of produced and traded minerals are fully traceable company payments to host governments are legal and transparent Fair working conditions No child labour fair remuneration and fair working conditions continual improvement in occupational health and safety measures Security and human rights The mineral producer ensures security on company sites whilst respecting human rights Community development The mineral producer consults with local communities and contributes to their social economic and institutional development taking into account gender sensitive aspects Environment The mineral producer seeks continual improvement of its environmental performance These standards refer to mining sites as well as the associated trading chains thus contributing to the supply chain due diligence efforts of mineral producers and their clients What is CTC The Certified Trading Chains CTC project sets and enforces standards for Artisanal and Small Scale Mining ASM and certifies that the minerals and metals produced by ASM meet five basic principles 2012 BGR Hannover