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John Worth - CEO and Managing Director
johnw@geo40.com
+64 21 800 310

Mike O’Sullivan - Founder and COO
mikeo@geo40.com

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Sales Team

To find out more about Geo40’s sustainable colloidal silica products, our expansion into harvesting other geothermal minerals, or to discuss how we might work together, please get in touch.

Peter Bergoo

Market Development Manager

Peter is a Chemical Engineer with international sales and world-class manufacturing experience in business management and product development of Specialty Chemicals. He has worked with Colloidal Silica for many years and especially enjoys the challenge that comes with learning and collaborating with customers to grow applications.

Peter has worked with Geo40 since 2017, helping to grow awareness of sustainably produced colloidal silica and working on market development for silica-based products.

Peter is based in the USA.

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Ken White

Sales Manager

Ken holds degrees in Chemistry and Biology. He has several years sales and market development experience of organic and inorganic chemicals in the water treatment, coatings, ceramics and refractory markets. His product experience includes colloidal silica, acrylamide polymers, acrylate dispersants, sodium silicates and defoamer chemistries.
Ken has been involved with Geo40 since 2017, pioneering colloidal silica synthesis from geothermal energy fluids with a sustainable zero carbon footprint.

Ken is based in the USA.

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John Lea

John Lea portait
Sales and Market Development Director

John holds a Bachelor of Science in Chemistry and Applied Chemistry, a Bachelor of Engineering in Chemical and Materials Engineering and a Post Graduate Diploma in Business (Finance). John has over 15 years experience as a senior executive and has deep experience in working with technology development and sales and market development both domestically and internationally. During the 1990’s, John worked on the extraction of minerals from waste geothermal fluids.

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