Response to the “Joint letter by Civil Society Groups to Companies linked to the supply Chain of Vale”. 

…Thank you for the letter you sent to ArcelorMittal and other companies regarding the incident at Vale's Feijão iron ore mine in Brumadinho. ArcelorMittal shares your concerns and we do expect Vale to address them appropriately…[T]his incident emphasises the importance of having greater transparency in the supply chain, and more robust, independent systems in place to check that the required safety, environmental and social standards are applied across all industrial operations we buy from. That is why, for over three years, we have been active participants in the Towards Sustainable Mining (TSM) initiative established by the Mining Association of Canada (MAC) and the Initiative for Responsible Mining Assurance (IRMA)…[T]his aligns with ArcelorMittal's human rights policy, and human rights due diligence system. In addition, we follow the OECD supply chain due diligence guidelines for raw material suppliers. Supply chain is one of five pillars of our board level SD and CR oversight committee…[I]…hope you and the other signatories in your letter would consider becoming involved. In terms of immediate strategy, we are collecting facts and awaiting results of ongoing investigations. We know mining companies are reviewing possible actions, for example decommissioning of upstream tailings storage facilities and non-wet disposal methods...