At its summer 2019 meeting in Geneva, the World Economic Forum International Business Council (IBC) launched a project to develop a proposal for consideration at its winter 2020 meeting in Davos‑Klosters for how its members could measure and disclose meaningful and relevant aspects of their performance on environmental, social and governance matters and their contribution to progress on the SDGs on a consistent and comparable basis. This report proposes a common, core set of metrics and recommended disclosures that IBC members could use to align their mainstream reporting and, in so doing, reduce fragmentation and encourage faster progress towards a systemic solution, perhaps to include a generally accepted international accounting standard.