In today's sustainable economic world, the rational thought should be the costs of life cycle, resources or supply chain process. Supply chains need to possess agility to achieve environmental performance (EP) and social performance (SP). However, at present, there is very little knowledge and awareness of how these two concepts interact within a supply chain. This paper therefore, aims to develop a conceptual framework to depict how green supply chain agility (GSCA) strengthens the EP and SP within the supply chain. In this study, a self-administered questionnaire was designed based on important criteria identified in the literature, and then administered to 230 organisations representing various industries which are part of EMS ISO 14001 certified manufacturing firms in Malaysia. The results showed that GSCA improves the performance of a firm environmentally and socially, and the control variables have no significant influence on the dependent variables.