As a good corporate citizen, QC WITNESS bears its social responsibility, respect the human rights, pay close attention to conflict minerals issues continuously, and make efforts to examine its supply chain to assure the metals sources of, including but not limited to, tin (Sn), tantalum (Ta), tungsten (W) and gold (Au) (hereinafter referred as "Conflict Minerals") are not drifted from the mines of the Democratic Republic of Congo (DRC) and its neighbouring countries (hereinafter referred as "Conflict Regions") controlled by armed groups.

QC WITNESS hereby expects our supplier chains to comply with the Electronic Industry Code Conduct and to only source materials from environmentally and socially responsible suppliers.