John Worth

Environmetals Ltd. engages in the extraction of silica from geothermal waste fluids. The company was founded by Matthew Leslie Sutcliffe and Michael Thomas O'Sullivan on July 13, 2010 and is headquartered in Taupo, New Zealand.

Geo40 Ltd. is a technology development and operating private company based in Taupo, New Zealand. Geo40 specializes in the sustainable, low-carbon recovery of valuable minerals from geothermal fluids, with a focus on producing consistent, high-quality, natural, ultra-low-carbon colloidal silica products that can be customized to meet the needs of different applications. The New Zealander company commissioned its first commercial scale project in February 2021 and production has ramped up throughout the year. As the demand for colloidal silica increases and industries strive to decarbonize worldwide, Geo40's low-carbon products become a welcome solution. The company was founded by Mike O'Sullivan and the CEO is John Worth.