ATEC designs and sells low-cost, patented biodigesters and electric cook stoves to small scale farmers in Cambodia. The business began operations in 2016 and has sold over 1,350 units as of end of 2019. Biodigesters use a biological process in which naturally occurring microorganisms break down organic waste to generate biogas and fertilizer. This provides significant impact by lowering expenses and improving crop yields of Cambodian households; the average family sees an increase in savings of $521 per year. Beneficial Returns provided ATEC* a $60,000 loan to help expand its new Pay As You Go (PAYGO) sales model in 2019. In 2021, it made another 2 loans totaling $300,000 after the earlier loans were fully repaid.