A seasoned non-executive director and chair, Sandra (Sandy) Stash has over 40 years of international executive and non-executive experience. Her board experience includes publicly listed, private equity, and government-owned businesses in the UK, Europe, USA, and Canada. Her career spans executive leadership positions in engineering and operations, major infrastructure, commercial negotiations, mega capital projects, supply chain management, sustainability, and government and public affairs in the energy, manufacturing, and hard rock mining sectors. As a non-executive director and through oversight of several public and controversial issues, Sandy is recognized for her unique capabilities in understanding the interface between business and external stakeholders. She has deep business experience on six continents, including North and South America, Southeast Asia, Australia, Sub-Saharan Africa, and Europe. Sandy is a Non-Executive Director of FTSE 250 Diversified Energy Company, plc, a USA-based operator of gas production and midstream assets. Sandy serves on the Board of Directors of the Trans Mountain Company (TMC), a Canadian Crown Corporation. She is a US National Association of Corporate Directors (NACD) Certified Director and Fellow of the Canadian Academy of Engineering. In 2020, she joined the Board of Lucid Energy, a PE-sponsored, energy company providing processing services in the US until a successful sale of the venture in 2022. Sandy served on the Board of Managers of US-based Medallion Midstream, LLC from 2022 to 2024 and the board of AIM-listed Chaarat Gold from 2020 to 2024 when the company was taken private. She also served on the Board of FTSE 100 EVRAZ plc, an integrated steel and mining business, until 2022 and as a Director of the Minneapolis Federal Reserve Bank from 1996 to 2002.A petroleum engineer by training, Sandy was one of the first women to work as a drilling engineer at locations across North America. During the 1990s, she was responsible for the resolution of legacy liabilities for ARCO’s – and then BP’s - discontinued businesses across North America. In 2003, she became the VP, HSE for TNK-BP in Moscow, Russia. In 2006, she became VP - Regulatory Affairs, Compliance and Ethics for BP Alaska. She joined Talisman Energy in 2008 in Calgary, Alberta, Canada as Group Vice President of HSSE and Operational Integrity. Sandy joined Tullow Oil in 2013 and was EVP – Safety, Operations and Engineering and External Affairs based in London, UK and working across Africa until retiring April 2020 from that role.