On the eve of the fourth anniversary of the Brumadinho Tailings dam disaster, in Brazil, which resulted in the deaths of 270 people, the United Nations Environment Programme (UNEP), the Church of England Pensions Board – representing the Principles for Responsible Investment (PRI) that co-convened the process with UNEP – announced the formation of the independent Global Tailings Management Institute (GTMI) to drive mining industry safety standards. The announcement was made at an investor summit on mining hosted by the LSE and convened by the Church of England Pensions Board in collaboration with UNEP.