ITM Power PLC announced the appointment of two new Non-Executive Directors, Sir Warren East and John Howarth, effective following the Annual General Meeting (AGM) on October 8, 2025. Warren East brings extensive global leadership experience from the technology and engineering sectors. He spent 30 years in the semiconductor industry, serving as CEO of ARM from 2001 to 2013, and was appointed CEO at Rolls-Royce in 2015, stepping down at the end of 2022.
He has served on the boards of several major engineering and technology companies, including BT, Dyson, and Micron. Currently, he serves as a Non-Executive Director at ASML NV and Tokamak Energy Ltd., and is the Chair of NATS, as well as the President of the IET. Warren was awarded a CBE in 2014 and a knighthood in 2025.
John Howarth is a Chartered Accountant with deep expertise in manufacturing, renewable energy, professional services, and aerospace. He is currently a Partner at S&W LLP, providing audit and accounting advisory services to a range of listed and private companies. His previous roles include Partner at EY LLP and senior finance roles at Future plc and PwC LLP.
Since 2023, S&W LLP has provided accounting advisory services to ITM Power, with John being the lead engagement partner. Following the conclusion of ITM Power's 2025 full-year audit, John will step down from this role and cease any further involvement with ITM Power in that capacity. Warren will be a member of the Audit and Remuneration Committee; John will join the Audit Committee and take on the role of Chair of the Remuneration Committee.
After serving as a Non-Executive Director since July 2022, Denise Cockrem will step down from the Board at the time of the AGM.


















