In developing nations, environmental policies have not given nearly enough consideration to the role that environmentally friendly innovation plays. Green innovation and long-term financial performance are extremely dependent on one another. Despite the fact that numerous studies have investigated the impact that a variety of corporate social responsibility (CSR) activities have had on environmental sustainability, relatively few have investigated the implications of green innovation strategies and sustainability. From the mid-2021 through to mid-2022, information was gathered from 184 businesses listed on the Pakistan Stock Exchange (PSX) across 12 different industries. Estimates of the results were obtained by the use of structural equation modeling using partial least squares (PLS-SEM). The outcomes of the study indicated that all parts of CSR were positively significant in the process of fostering environmentally sustainable growth, with the exception of one aspect of CSR that was directed toward customers. Additionally, sustainable development contributes to the mediation impact that green innovation has, making this effect even more powerful. The data show that CSR activities have an exceptional impact on financial performance (FP) in all aspects other than one, and that green innovation (GI) also has a high-quality impact on FP, which demonstrates the significance of CSR practices in enhancing sustainable environment.