Silvo Plus is driven by a team of specialists who bring together expertise in agronomy, natural systems, and innovation. Backed by Jet Zero Australia, our team combines scientific insight with strategic delivery to support projects that aim to deliver practical impact across regional Australia.

David Johnston

General Manager

25 years of operational and strategic accountabilities for oil and gas businesses at national, regional, and global levels. David has an extensive background in refining, product sales and the commercialisation challenges of innovative technologies. He was head of downstream oil, refining and supply chain operations in NSW for Shell and worked with the Australian Dept of Defence and Exergen. David has a Bachelor of Chemical Engineering (Honours) from Curtin University and is a Chartered Engineer from the Institution of Chemical Engineers.

Ketti Ketmontri

Silvo Plus Lead & Agronomist

Ketti has completed a Bachelor of Engineering (Honours) / Science from the University of New South Wales, majoring in Renewable Energy Engineering and Ecology. She dedicated her thesis to “Sustainable Aviation Fuels: Exploration of Australian Feedstocks under Plasma Gasification”. She previously worked as a consultant at EnergyLink Services on projects involving energy assessments, emissions modelling and carbon inventories to develop a broad understanding of sustainability, with a deep focus on gasification technologies and sustainable aviation fuels. From that role, she has discovered her passion for Sustainable Aviation Fuel (SAF).

Adam Douglas

Industrial Manager

Adam has 30 years’ experience in the Australian Sugar Industry and for the last 10 years has been at Wilmar, where he held a role as Regional Operations Manager, in managing the Macknade and Victoria sugar mills, with Victoria Australia’s single largest sugar milling operation. Adam has been instrumental in shaping the strategy around an upstream industrial portfolio and growing ethanol feedstock. He is a mechanical engineer by background and is based in Townsville.

Jackie Mason

Sustainability & Carbon Manager

Jackie is experienced in developing sustainability plans for small cap ASX listed companies. She enjoys collaborating with companies and relevant stakeholders to develop their ESG framework in order to achieve their UN SDG’s. She holds a Bachelor of Business and Japanese from Swinburne University in Melbourne and post graduate studies in Business Sustainability Management from Cambridge University, UK.

Mark Freeman

Finance Director

A Chartered Accountant with more than 20 years’ experience in corporate finance and the resources industry. He has experience in strategic planning, business development, mergers and acquisitions, North American gas commercialisation, and project development general management. Mr Freeman has worked with a number of successful ASX public resource companies.