HTC Purenergy Inc. operates in various industry sectors, including Industrial and Energy Services, Clean Energy Technologies, and Agricultural Products and/or Services. The Company operates through two segments: HTC CO2 Systems and Maxx. The HTC CO2 Systems segment provides products and services related to Energy Technologies and carbon dioxide (CO2) Systems. The Maxx segment provides manufacturing sales and distribution services relating to oil and gas equipment supply and service, as well as fertilizer and grain handling solutions. The Industrial and Energy Services Sector is focused on servicing industry and energy by providing services for industrial facilities, potash mines, oil and gas producers, and drilling service contractors. It operates in this sector through Pinnacle Industrial Services (Pinnacle), which supplies Maxx Energy, (MaxxEnergy) brand. It operates in Clean Energy Technologies sector through HTC CO2 Systems Corp., within its LCDesign and PDOengine technologies.