Team | Cornish Lithium Ltd
Meet the experienced and knowledgeable team for Cornish Lithium, including the biographies of our Board of Directors and consultants to the business.
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Jeremy Wrathall

Founder & CEO

Jeremy has over 30 years of experience in the mining finance industry and has advised mining companies on transactions globally.

Following his graduation in Mining Engineering at the Camborne School of Mines in Cornwall, he spent three years working as a mining engineer in the South African gold mining industry. Jeremy then pursued a career in mining investment banking in London which included senior roles at global investment banks, including his most recent role as Global Head of Natural Resources – London at Investec Bank plc.

He has advised on transactions on all of the world’s major mining exchanges and has served as a non-Executive director of mining companies listed on AIM and on the ASX. Jeremy is a Fellow of the Institute of Materials, Minerals and Mining.

Having founded Cornish Lithium in 2016, Jeremy decided to fully focus on the company and left his career in investment banking in March 2017.

Derek Linfield

Chairman & Director

Derek is a legal consultant and serves as non-executive director on several boards. He practised as a Canadian lawyer in London for 20 years, where he focused on cross-border financings and M&A in the mining and oil & gas sectors, including taking companies to the London Stock Exchange.

Prior to his retirement in 2015, Derek had been Managing Partner of the London office of Canadian law firm Stikeman Elliott LLP for 10 years. Derek holds degrees from Memorial University of Newfoundland as well as LLB and MBA degrees from McGill University.

He is currently the Chairman of AIM listed Mkango Resources as well as non-executive director of a number of private companies and not for profit organisations. He is a director of MUN UK (UK campus of Memorial University of Newfoundland), a trustee of the Harlow Scholarship Trust and adviser to the board of the Canada UK Chamber of Commerce.

Derek Linfield

Louise Wrathall


Having completed a degree in geology from the University of Liverpool and a masters degree in mining geology from the Camborne School of Mines Louise initially worked in the quarrying industry in the UK before spending nine years as a mining analyst focussed on London listed companies.

Until 2014 Louise was part of the No.3 Extel ranked team at Investec covering a wide range of mining companies including majors and junior explorers listed in London. Since leaving Investec Louise has focused on investor relations and is currently responsible for investor relations at AIM listed Central Asia Metals, having previously worked for two years at GoldBridges Global Resources.

Louise Wrathall

Keith Liddell


Keith is experienced metallurgical engineer and resource company director. Working exclusively in the minerals industry since 1981 he has experience in management and ownership of a number of public and private businesses and joint ventures with a variety of participants. He has financed and brought into production mines in Africa, Australia and China. Through Lifezone Ltd, Keith is primarily focused on developing and marketing the Kell Process, which he conceived and patented. He has a number of international patents in his name and is the author of over 20 technical and industry review papers.

Keith has also been involved in exploration for gold, PGMs and nickel in China and Australia, development of an open pit, heap leach copper SX-EW mine in Australia, exploration and production of fluorite in South Africa and Australia. He is chair of Colomi Singapore Ltd and a director of Cornish Lithium Ltd. Keith is a director of Lifezone Ltd and its licensee companies KellTech Ltd and Kelltechnology South Africa Pty Ltd.

Chris Harker

Head of Exploration

Chris graduated with an Honours degree in Mining Engineering from the Camborne School of Mines and worked on the original HDR Geothermal Energy Project, before moving into consultancy in virtually all aspects of the Renewable Energy and Mining industry.

He has extensive knowledge of the geology of Cornwall and has worked in the County for over 30 years on geothermal energy and other projects relating to thermal springs. His ability to digitally integrate geological and geographical information has been invaluable and it is expected that he will play a leading role in the assembly of data in the company’s Geographical Information System (GIS) going forward.

Chris Harker

Lucy Crane

Senior Geologist and Corporate Development Associate

Lucy is a geologist with a background in grassroots exploration. She holds an MSc in Mining Geology from the Camborne School of Mines and a master’s degree in Earth Sciences from the University of Oxford. Prior to joining Cornish Lithium, she worked as an exploration geologist for Altus Strategies, planning and implementing exploration strategies for base and precious metals projects up to drill stage in Africa. She is now applying these skills to Cornish Lithium’s exploration programme. Part of her role at Cornish Lithium is to foster collaboration with other industry and academic partners to accelerate the exploration programme and test new concepts.

Lucy has a keen interest in furthering the interests of young mining professionals and in promoting the mining industry to students, and sits on the committee of both the Young Mining Professionals and Women in Mining (UK).

Laurie Hassall

Senior Geologist

Laurie is a senior geologist with an extensive background in south west geology. Having grown up in Falmouth, he graduated from the University of Southampton with a master’s degree and returned to Cornwall as an exploration geologist at South Crofty tin mine in Pool, gaining significant experience in complex multi-episodic Sn/Cu/Zn/W lode mineralisation. Following this role, Laurie worked for SGS Minerals and then Datamine International, applying his skills in a large implementation project in Poland. Laurie then joined and helped setup the technical mining team at Devon’s W/Sn Drakelands mine for Wolf Minerals. He was involved with all aspects as senior mine geologist, from drill planning, resource modelling, grade control, geo-metallurgy and near site exploration.

Outside of work, Laurie loves to explore the rugged south-west coastal path and enjoys walks in all kinds of weather. He also enjoys spending as much time as he can in the sea and enjoys snorkeling and body-boarding.

Mike Round

Senior Geologist

Mike graduated with a BSc (Hons) degree in Geology from the University of Birmingham in 2013, and then completed an MSc in Mining Geology at Camborne School of Mines. He has since worked across West and Central Africa as an Exploration and Project Geologist on gold, copper and coltan projects. Most recently, he was a Project Geologist with Volcanic Gold Mines in Guinea where he was responsible for the operational management for the company’s exploration programme.

Mike is particularly experienced in the planning and operational management of exploration programmes including; mapping, geochemical sampling, pitting, trenching and RC/DD drilling. He is now using this experience to help develop Cornish Lithium’s exploration programme and is responsible for managing the company’s drilling team.

Bethany Colgan

Exploration Geologist

Beth is an exploration geologist with an MSc in Mining Geology from the Camborne School of Mines and a BSc in Geology from the University of Manchester. Her specific interests and experience are in the application of geometallurgy for sustainable mining and resource optimisation. As an Associate Research Fellow at the Camborne School of Mines Beth worked on the NERC Resource Recovery from Waste (RRfW) programme. She has worked with a range of commodities such as Li, Pb-Zn & PGE’s across a diverse range of projects and in 2017 started her own consultancy. After recently relocating to the north coast of Cornwall, Beth spends most of her spare time undertaking renovations to her historic home and enjoying living so close to the beach.

Adam Matthews

Exploration Geologist

Adam is an exploration geologist with an MSc in Mining Geology from the Camborne School of Mines, and a BSc in Applied Geology from the University of Plymouth. His areas of interest lie in structural and ore deposit geology. He is currently using ArcGIS, Leapfrog and ioGAS to model both modern and historic datasets to better understand the deep geology and distribution of lithium bearing brines in Cornwall. Before joining Cornish Lithium his dissertation helped to further develop the deposit model for deep sea ferromanganese crusts, which are enriched in battery metals such as cobalt and tantalum.

Adam is a fellow of the Geological Society of London and outside of work is a keen climber spending most of the dry evenings exploring the South West’s climbing. He is also a gymnast and volunteers as a coach at the local gym.

Tom Naylor

Exploration Geologist

Tom holds an MSc in mining geology from the Camborne School of Mines and a BSc in Applied Geology from Plymouth University. Having grown up in the Camborne area of Cornwall, Tom developed an interest in geology and mining. Following graduation, he went on to work in mineral processing before starting work as a geology consultant, a role in which he hopes to play a part in sustainable regeneration of the mining industry in Cornwall.

Outside of work Tom is a keen surfer and enjoys an active outdoor lifestyle. He worked as a beach lifeguard in Penwith to help fund his education and in recent years has continued to work on the beaches on some of his days off.

Harry Scott

Exploration Geologist

Harry graduated from Cardiff University in 2016 with a BSc Hons in geology. His dissertation was focused on mapping the structure and sediment deposition of the Cevennes Valley, SW France. He has since completed discreet projects for James Fisher Marine Services and local environmental charities, applying his knowledge of geology and geographic information systems (GIS).

Growing up in Cornwall Harry has spent many years of surfing, fishing and exploring the county’s rugged coastline. After completing his degree, he and a friend restored an old wooden yacht and spent the summer cruising the west coast of Europe.

Hester Claridge

Exploration Geologist

Originally from Cornwall, Hester is a recent graduate from the University of Leicester, with a BSc in Geology. Her previous experiences include internships with exploration companies such as Cornish Lithium Ltd. Hester after completing her degree now works full time in her current role as an exploration geologist at Cornish Lithium Ltd.

Hester is also a keen musician, playing violin and double bass in jazz bands and orchestras across the country.

Alistair Salisbury

Exploration Geologist

Ali studied for his MSc in Earth Structure and Dynamics abroad at Utrecht University, the Netherlands, where he completed his MSc thesis on lithium carbonate precipitation from brine solutions. After this he sought to offer his newly acquired knowledge within an industry setting at Cornish Lithium during a placement programme which soon turned into a permanent position. Previous to this Ali has worked as a geophysicist at Wessex Archaeology undertaking surveys in the UK and internationally and holds a BSc in Geology from the University of Plymouth.

Having recently moved back to the UK, Ali is becoming reacquainted with the Cornish coastline spending time sea swimming and surfing. Also a keen climber and squash player, he represents Falmouth Town’s own squash club playing league games throughout the County.

Neil Williams

Digital Archivist

Born and bred in Cornwall, Neil graduated in Astrophysics at Cardiff University in 1996. Following a brief period travelling he returned to Cornwall and took a position with Cornwall Council’s Archives and Local Studies Service, working in various roles over the years but in particular specialising in the digitisation of historic archives and images.

In his spare time he enjoys motorcycling, mountain biking, kayaking around Cornwall’s coast and, on quiet days, a good read. He recently undertook an undergraduate level module through Exeter University and Camborne School of Mines with the aim of developing his understanding of geology and the mining industry.

George Fry


George graduated from the Royal School of Mines with a master’s degree in Geology before joining Cornish Lithium as an exploration geologist. He specialises in economic geology and geochemistry; and completed his master’s dissertation on regional geochemical indicators of arc magma fertility in collaboration with the Natural History Museum of London.

Prior to joining Cornish Lithium, George worked as a consultant with the World Bank and completed an internship at Goldman Sachs. He is applying his GIS skills, and experience in mineral deposit geochemistry, to assist in Cornish Lithium’s exploration efforts, with a particular focus on the role of fluids in mineralising processes.

George is an advocate for young people with learning disabilities, and outside of his work for Cornish Lithium he collaborates on research projects with a UK based learning disability charity.

Steph Wilk

Office Administrator

Steph is a geologist with a master’s degree in geology from the Royal School of Mines. Steph has worked as an exploration and project geologist in Africa, Australia and Europe with experience in a breadth of commodities and mineralisation styles. Steph lived in Perth for three years and focussed heavily on gold exploration within Australia. Prior to joining Cornish Lithium, Steph worked for Berkley Mineral Resources as senior geologist and was responsible for all exploration on their tin and tungsten portfolio in Portugal in addition to their lead-zinc projects in Zambia. Steph also brings skills in data, having spent a year working as Implementation Consultant for EHS Data, building and delivering SQL-hosted databases for the environmental compliance industry, in particular mine-site compliance, where she consulted for the Drakelands Mine and mines across Australia and Canada. Steph now works as Office Administrator for Cornish Lithium.

Steph is a fellow of the Geological Society of London and away from work enjoys arts and crafts, yoga, surfing and chasing after her toddler!