CANONSBURG, Pa.–(BUSINESS WIRE)– #ESG–Equitrans Midstream Corporation (NYSE: ETRN) released its annual corporate sustainability report, which utilizes the Global Reporting Initiative’s (GRI) ‘Consolidated Set of the GRI Standards 2021’ and continues to follow the Sustainability Accounting Standards Board (SASB) Oil & Gas Midstream reporting standards. The materiality assessment leveraged inputs from internal and external stakeholders and supplemental sources, including GRI, SASB, industry assoc