DevEx Resources has appointed Marnie Finlayson, a seasoned mining executive from Rio Tinto, as Managing Director starting December 2025, signaling a strategic push in uranium and rare earth projects.
- Marnie Finlayson appointed Managing Director effective 1 December 2025
- Finlayson brings extensive leadership experience from Rio Tinto’s battery materials division
- Focus on advancing uranium portfolio in Northern Territory and rare earths project in Queensland
- Comprehensive remuneration package includes fixed salary, incentives, retention rights, and options
- Outgoing MD Todd Ross to pursue private credit and advisory ventures
A New Chapter for DevEx
DevEx Resources Limited has announced a significant leadership change with the appointment of Marnie Finlayson as Managing Director, effective from 1 December 2025. Finlayson, a highly regarded figure in the mining sector, brings a wealth of experience from her long tenure at global giant Rio Tinto, where she notably led the battery materials strategy and oversaw key acquisitions such as the Rincon Project in Argentina.
This leadership transition marks a strategic inflection point for DevEx, which is positioning itself to accelerate development across its uranium assets in the Northern Territory and its Kennedy rare earths project in Queensland. The company’s chairman, Tim Goyder, highlighted Finlayson’s global experience and commercial acumen as critical to driving the next phase of growth.
Leadership with a Proven Track Record
Finlayson’s career spans multiple senior roles within Rio Tinto, including operational leadership in iron ore and salt divisions, as well as strategic roles shaping battery materials initiatives. Her appointment is expected to bring a hands-on, commercially savvy approach to DevEx’s exploration and development efforts. She also serves as a non-executive director of Northern Star Resources, underscoring her deep industry connections and governance experience.
Her predecessor, Todd Ross, who led DevEx through a period of portfolio review and repositioning, will step down to focus on Bedrock Credit Partners, a private credit and advisory firm he co-founded. Ross’s tenure saw groundwork laid for upcoming exploration phases, particularly at the Nabarlek Uranium Project.
Incentives Aligned with Growth Ambitions
Finlayson’s employment terms reflect the company’s ambitions, featuring a $350,000 fixed annual remuneration plus superannuation, with a short-term incentive of up to 100% of her total fixed remuneration. The package includes retention rights and options with performance-based vesting tied to shareholder returns, designed to align her interests closely with those of investors.
These incentives underscore DevEx’s commitment to long-term value creation as it navigates the complexities of uranium and rare earth markets, sectors that are increasingly critical to global energy transition and technology supply chains.
Looking Ahead
With Finlayson at the helm, DevEx is poised to leverage her strategic insight and operational expertise to unlock value from its district-scale projects. Investors will be watching closely to see how this leadership change translates into exploration success and market momentum in the coming months.
Bottom Line?
Finlayson’s appointment sets the stage for DevEx’s ambitious growth, but execution risks remain as the company advances its uranium and rare earths agenda.
Questions in the middle?
- What specific exploration milestones will DevEx target under Finlayson’s leadership?
- How will Finlayson’s battery materials expertise influence DevEx’s strategic direction?
- What market conditions could impact the vesting of Finlayson’s performance incentives?