Tambourah Metals Limited announced that William (Bill) Marmion has been appointed as a non-executive director of the Company from 24 October 2023 Mr. Marmion holds a Bachelor of Engineering (UWA) and a Master of Business Administration (UWA). Mr. Marmion was a State Minister for 6 years in the WA Government between 2010 and 2016, holding the portfolios of State Development, Mines and Petroleum, Transport, and Environment. He was ultimately responsible for the delivery of projects within these areas and for enforcement of the relevant Acts of Parliament.

He has 24 years delivering infrastructure projects as an engineer within State Government Agencies, 6 years developing the business cases and Cabinet approvals of major State Government projects and 6 years as a Minister driving projects through Cabinet and Parliamentary approvals processes. In 2020, Mr. Marmion was the Deputy Leader of the Opposition (Western Australia). He also held Shadow Ministerial Positions (2017-2020) including Shadow Minister for Mines and Petroleum, Local Government, Defence Issues and Science.

Prior to entering parliament Mr. Marmion was a partner in a small consulting business producing financial business cases for large infrastructure projects and land developments.