This research has investigated the impact of top management commitment to enhance operational performance through green purchasing and green production Practices in the manufacturing industry. The study has surveyed 122 from 578 manufacturing companies domiciled in East Java, Indonesia, using a questionnaire designed with a seven-point Likert scale. Data analysis used the partial least square. The result revealed that top management commitment affects green purchasing, green production practices, and operational performance. Furthermore, operational performance is directly affected by green purchasing and green production. The green purchasing affects green production. In addition, top management commitment indirectly improves operational performance through green purchasing and green production. This result provides essential insight for the manager in the manufacturing industry that top management commitment and practicing green purchasing, and green production enhances operational performance. Furthermore, this research extends the acceptance of previous research related to top management commitment, green purchasing, and green production in improving operational performance. The novelty of this study is the revelation of the mediating role of green purchasing and green production in the influence of top management commitment on operational performance. Hence, this study contributes to enriching the current research in supply chain management.