In today’s globalized economy, the corporate company faces ever-increasing competitive and social pressures. This paper aims to identify the impacts of firms’ performance on corporate social responsibility practices using the mediating roles of corporate governance evidence from Ethiopia’s corporate business. The impacts of firms’ performance on CSR and corporate governance as a mediator variable were studied using a sample of TIRET corporate companies, in the Amhara region, Ethiopia. The structural equation model and multiple regression analysis were estimated and tested using 21 corporate companies. The derived model reveals how corporate governance mediates the favorable relationship between CSR and firm performance. The result indicates that a firm’s performance is the most significant influencing factor on CSR among the impacts examined in this study. Corporate governance has a positive role in serving as a legitimacy source for CSR practice. This study discusses the significance of results-based resource theory and presents the conclusion and implications. To solve the gaps in firm performance, return on asset, debts on capital structure, and governance, the corporate firms should identify unproductive enterprises and outsource non-core values. To overcome the existed inefficiency difficulties, this study proposed that corporate enterprises should be restructured, rebranded, reconsider their business models, and acquire technology-based firms. This paper contributes to CSR literature in the context of emerging economies. Firms, policymakers, and practitioners may take steps to improve CSR practice. In general, we conclude that in Ethiopia, including in the Amhara region, socially responsible corporate enterprises are more likely to be successful, and vice versa.