Our people

Dr. Len Humphreys

Dr. Len Humphreys


Dr Len Humphreys was instrumental in the conception and development of Licella’s technology and is the inventor of a number of patents around the Catalytic Hydro-Thermal process, Cat-HTRTM.

Len is a chartered chemist and the former Director and Managing Director of several renewable energy companies including Novera Energy, a renewable energy company now listed on the AIM in the UK and also the ASX listed company IBA Health (now I-Soft), a healthcare IT software provider.

In addition, Len held Managing Director and Regional President roles inside the European Invensys Group of companies.

Invensys is one of the world’s largest IT, process control and industrial process automation conglomerates. In Europe, Len was a senior executive inside the Mannesmann Group, the German multinational specialising in engineering, manufacturing and telecommunications; in particular, he was CEO of the Hartmann and Braun process Analytical Division based in the UK.


Simon Mathewson

Simon Mathewson


Simon has over 20 years’ experience in the banking and financial services industry, including Asset Management; Superannuation; Wealth Management and Capital Markets. He has extensive leadership experience on strategic projects across Sales, Risk, Finance, Operations and Technology. Prior to joining Licella Holdings in early 2019, Simon held various senior leadership positions across Westpac, Macquarie Bank and JP Morgan. In addition, Simon brings to Licella Holdings valuable expertise in transitioning entrepreneurial start-ups into their commercialisation phase through his work as a business consultant.

Dr. William Rowlands

Dr. William Rowlands

Chief Scientist

William is a highly experienced industrial scientist with expertise in the areas of high temperature reactions, colloid science and catalysis, and has been working in the field of renewable and alternative energy and materials since 2006. Prior to this he was Research and Development Manager for Colloidal Dynamics, an innovative company specializing in the design and manufacture of scientific instruments for colloid science applications and scientific consulting services. Dr Rowlands was a pioneering stakeholder in Colloidal Dynamics, which was acquired by Agilent in 2008.

Dr Rowlands has held a number of Postdoctoral positions at the University of Sydney, and was a Senior Technologist with Redland Technology (UK). He is a graduate of the University of Bristol, completing his B.Sc. in Chemistry in 1984 and his Ph.D. in 1989. In 2007 he completed an M.B.A. (Executive) degree at the Australian Graduate School of Management, a joint School of the University of New South Wales and the University of Sydney. He is the author of fourteen peer-reviewed scientific papers and several patents.

Emma Dyer

Emma Dyer

Human Resources Director

Emma has over twenty five years, operational, commercial and human resources experience, including senior management, executive and HR Director appointments across a number of industries including FMCG, Healthcare and Retail in the UK, Europe and Australia.

Prior to joining Ignite Energy Resources in 2013, Emma provided HR consultancy services to entrepreneurial start-ups and small businesses.

She is a Fellow of the Chartered Institute of Personnel and Development (Chartered FCIPD) equivalent to a Fellow of AHRI (Australia Human Resources Institute).

Andrea Polson

Andrea Polson

Marketing Director

Andrea joined Licella Holdings in 2015 and has over fifteen years experience in a variety of marketing, communication and business development roles. Andrea is experienced leading cross functional teams and managing multimillion dollar brands including Botox, Juvederm and Nasonex. Andrea has a BA Hons from the University of Sydney and a Graduate Diploma in Business (Marketing).

After seven years in brand management within the pharmaceutical industry, Andrea moved to Licella and is responsible for all aspects of marketing and communications. Most recently, Andrea has also worked as a Consultant for Gelion, a battery start-up, and for iQ Renew, an Australian recycler.

Alan Nicholl

Managing Director

Alan joins Licella following 14 years at Canfor. Alan is also President and CEO of Arbios Biotech. Appointed to this position in October 2021, Alan’s strategic leadership and financial discipline will be critical assets as Arbios continues to develop and grow.

Alan was Executive Vice President, Bio-Based Solutions & Pulp Operations at Canfor. He is responsible for building Canfor’s Bio-Innovation team that is focused on unlocking the full value of each log by diversifying the business into bio-based solutions as low carbon, renewable products become increasingly valued. Alan joined Canfor in 2008, most recently serving as the Chief Financial Officer of Canfor and Canfor Pulp and Executive Vice President Finance and Canfor Pulp Products Inc. since March 2018. Prior to that appointment, Alan served as Chief Financial Officer and Senior Vice President for both Canfor and Canfor Pulp. He has been a member of the Arbios Board and Management Committee since they were established and is excited to leverage innovative hydrothermal liquefaction technology to provide circular economy solutions around the world.

Alan Del Paggio

Global Director of Business Development

Alan joins Licella with 35 years in industrial catalysis. Building upon experience in the production of fossil-crude-derived petrochemicals during his early years at Shell, Alan shifted his focus later to develop more sustainable solutions. He led activities to identify, validate, scale up and deliver sustainable commercial solutions including production of low carbon-intensity petrochemicals and base oils, renewable petrochemicals and hydrogen. Most recently he has successfully led technical and commercial activities supporting circular economies in post-consumer waste plastics and production of renewable ‘drop in’ hydrocarbon fuels from biomass. He has implemented novel partner-based risk-mitigation strategies for the first deployment of new technologies.

Alan holds a Bachelor of Science degree from Purdue University (1982) and a Ph.D. from University of California, Berkeley (1986) which he attended as a National Science Foundation pre-doctoral fellow. Alan attended Executive Development courses at the University of Houston and University of Pennsylvania, Wharton School of Business.

Sandeep Dalvi

Technical Project Director

Sandeep is the Technical Project Director of Arbios Biotech and is responsible for overseeing the successful planning, implementation and reporting of all projects.

Sandeep has extensive experience in downstream hydrocarbon processing (oil refining, upgrading, LNG), technology development & commercialisation and project execution. Prior to joining Arbios, Sandeep worked and managed business development and projects for engineering companies in Australia, Brazil, Canada and India. He is a registered professional engineer in the province of Alberta and Queensland.

Sandeep has extensive experience in leadership roles delivering complex capital and operational engineering projects in in Australia and North America.

Prof. Thomas Maschmeyer, FAA FTSE FMAE

Prof. Thomas Maschmeyer

Principal Technology Consultant

Thomas is an inventor of the Cat-HTRTM technology, and Co-Founder of Licella Holdings. He is Professor of Chemistry at the University of Sydney and served as Founding Director of the $150m Australian Institute of Nanoscale Science and Technology. In 2011 he was elected youngest Foreign Member of the Academia Europea as well as Fellow of the Australian Academy of Sciences, the Australian Academy of Technological Sciences and Engineering, the Royal Australian Chemical Institute (RACI) and, in 2014, of the Royal Society of NSW.

He is Founding Chairman of Gelion Technologies. He serves on the editorial/advisory boards of ten international journals and has received many awards, including the Le Févre Prize of the Australian Academy of Sciences (2007), the RACI Applied Research Award (2011), the RACI Weickhardt Medal for Economic Contributions (2012), the RACI R. K. Murphy Medal for Industrial Chemistry (2018) the Eureka Prize for Leadership in Innovation and Science (2018), the Federation of Asian Chemical Societies’ Contribution to Economic Development Award (2019), the Australian Prime Minister’s Prize for Innovation (2020), the Australian Academy of Science’s David Craig Medal (2021) and the Australian Financial Review Sustainability Prize (2021).

Larry CiccarelliLarry Ciccarelli


Larry was the Executive Chairman and founder of GlobeStar Mining Corporation, previously a TSX-listed company, until its recent acquisition by Perilya Ltd (ASX: PEM). Globestar owned base and precious metal mining assets in the Dominican Republic. He founded Sarmin in 1997, which was a private natural resource corporation, prior to its acquisition by GlobeStar.

Larry currently holds the position of Director and Company Secretary at Karr Securities Inc., a private investment firm, where he has worked since co-founding the company in 1989. He is also currently the Chairman of Karmin Exploration, a TSX-listed mining and exploration company with an interest in one of the largest undeveloped zinc projects in Brazil.

Larry holds a Bachelors Degree from the University of Western Ontario. He received an Ontario Business Achievement Award (OBAA) and the Ontario Global Traders Award (OGTA) from the Ontario Chamber of Commerce in 2009. In 2010, Larry was named an Ernst & Young Entrepreneur of the Year (“EOY”) finalist, for his role as founder of GlobeStar Mining Corporation.


Jim OvertonJim Overton

Non-Executive Director

Jim is the co-founder and manager of Amplify Energy, a private North American oil and gas exploration company. Jim is also a private investor and partner across a wide range of industries.

Jim has worked as Vice President of Gastar, a gas exploration company, Director of Tampa Bay Buccaneers of the NFL overseeing all business administration and revenue generating aspects of the team and as a Board Member of the Moffitt Cancer Center.

Paul AxonPaul Axon

Non-Executive Director

Paul has vast experience of M&A, corporate finance and general management in Europe and Australia. Previously Paul was a partner in corporate finance in BDO in the UK, had his own M&A practice and was the CEO of Sykes Pumps, until the sale of the business to National Hire in 2010.

Currently Paul is the CEO and equity holder of Coco Group. Coco Group invests in and manages a vast array of businesses in Australia and the Middle East. Business sectors include equipment rental, mining services, retail, biotechnology and resources.