ABSTRACT: Business ethics in Islam is not only related to the trade of buying and selling transactions; it is implemented in all aspects of human life, including environmental management. One important environmental aspect that must be managed ethically is the management of Hazardous and Toxic Material waste (B3 Waste). B3 Waste has a high potential risk of pollution for the environment if not managed properly and correctly. Research on implementing Islamic business ethics was conducted at PT Kaltim Prima Coal (PT KPC), a coal mining company with complex challenges in managing its B3 waste. This study explores the implementation of Islamic business ethics with 7 main principles: Tawhid, Justice, Responsibility, Benevolence, Sincerity, Balance, and Vicegerency. This is qualitative research through in-depth interviews with employees at the B3 waste management supervisory level. The results showed that employees responsible for B3 waste management had implemented Islamic business ethics values with 7 main principles. This implementation has contributed to the sustainability of B3 waste management at PT KPC in a compliant and efficient manner. Academics can further develop this research by examining the contribution of Islamic business ethics to corporate values.

KEYWORDS – Hazardous, Islamic business ethic, waste