The study was carried out to determine the green marketing practices required by polythene manufacturing companies for consumers' sustainability in South-South Nigeria. Specifically, the study sought to determine the green ethical, pricing, promotion, staff training, distribution and physical evidence practices required by polythene manufacturing companies for consumers' sustainability in South-South Nigeria. The literature review was done covering the major concepts of this book, theoretical frameworks and related empirical studies. The descriptive survey research design was adopted for the study. The study was conducted in the six States of South-South Nigeria as follows: Cross River, Akwa Ibom, Delta, Edo, Rivers, and Bayelsa State.