In the dynamic landscape of the global economy, traditional hierarchical organizational structures are facing challenges in maintaining competitiveness, adaptability, and sustainability. This study delves into the crucial role of team building in nurturing sustainability, productivity, and cohesive relationships among employees, particularly within fiercely competitive industries like the lubricant sector in Anambra State, Nigeria. The research explored the historical roots of team building, tracing its origins to the industrial revolution, and highlights its contemporary relevance in the context of modern organizations. Despite the acknowledged importance of team building, this study aims to provide a comprehensive analysis of its specific impacts on employee relations, creativity, and performance within the Anambra lubricant sector. By examining empirical data and case studies, the paper aimed to shed light on how effective team building strategies can be implemented to achieve sustainable productivity in such highly competitive industries. The objectives include investigating the effects of team trust and team training on the environmental sustainability of lubricant firms in Anambra State. The study's findings revealed that team trust and team training significantly enhance the environmental sustainability of lubricant companies. These results emphasize the critical role of team building practices in improving sustainability and performance within the sector. The recommendations put forth include promoting impactful interactions among team members to foster trust, support, and understanding, as well as continuous evaluation of coaching-based training and development programs to enhance employee learning outcomes. This research contributes valuable insights to organizations seeking to optimize resources and achieve sustainable growth in competitive industries Keywords: Team building, Sustainability, Lubricant firms, Organizational performance, Employee relations, Productivity, Team trust, Team training