ABSTRACT Unlawful acts are actions that violate the rights or interests of other people which are protected by law. in unlawful acts, the perpetrator is asked to e held responsible. This rasearch aims to analyze the responsibility of PT Surya Sawit Mandiri for unlawful acts that occured in Koto Tandun Village, Rokan Hulu Regency. The main focus is the impact of environmental pollution caused b…