Gaining a sustainable environment in the manufacturing sector is dependent upon attracting top talent, providing extensive training, and embedding environmental consciousness throughout the company’s culture. Numerous cases of environmental contamination in the Nigerian manufacturing sector have led to serious health problems, confrontations with local residents, employee disengagement, decreased assurance, and organizational discontent. This study investigated green human resource management (GHRM) and corporate sustainability, focusing on manufacturing companies in Lagos State. Social identity theory was adopted for this research. The methodology used was quantitative research which made use of a questionnaire, and data were collected from 336 employees of various industrial enterprises in Lagos State, Nigeria. The findings of this research showed a significant effect between the antecedents of GHRM and corporate sustainability in the manufacturing industry. The study utilized regression analysis and demonstrated that organizations gain advantages by applying GHRM. Employees exposed to greening abilities and training reduce waste and reuse materials, enhance the firm’s image, attract and retain green customers, and reduce adverse environmental effects to better financial performance. This accomplishment benefits the company and allows employees to develop their own environmentally conscious orientation and projects.