The circular economy can play an essential role in sustainable business management. The adoption of circular economy practices among firms is a solution to their negative impact on society and the environment that increases from their operation. In Thailand, the tapioca starch industry is considered one of the largest food processing industrial sectors. The rapidly growing industrial activities have been causing water and pollution problems. These challenges require an approach that has the potential to overcome problems and contribute to sustainable development. Therefore, the purpose of this study is to explore how the tapioca starch industry has implemented circular economy principles, which identified issues across the key stages: take, make, and waste. This study used a qualitative research approach, using data collected through semi-structured interviews, complemented with field observations, as well as a review of secondary sources. Semistructured interviews were carried out with five representatives, who are critical informants and directly involved with CE practices of tapioca starch companies in Northeastern Thailand. The result suggests that the implementation of circular economy principles can achieve organizational sustainability. Top management support is the primary motivator for organizations to embrace circular economy practices. The tapioca starch industry is coupling its strategic goals with maximum efficiency, reducing waste, and most importantly, discovering novel sources of revenue that enable both business success and the regeneration of the environment. Crucially, for the tapioca starch industry to move towards circularity, they must integrate these strategies across supply chains, rather than limiting them to the organizational stage.