This article aims to conceptualize and examine the influence of top management green commitment and green intellectual capital on sustainable business performance of Thailand's thrift and credit cooperatives. Data were collected from a sample of 319 top and middle managers and full-time employees of Thailand's thrift and credit cooperatives and analyzed using Structural Equation Model (SEM). The study's findings demonstrated that top management green commitment and green intellectual capital have a positive influence on sustainable business performance. Top management green commitment and green intellectual capital also have a positive influence on green human resource management. Furthermore, green human resource management has a positive influence on sustainable business performance. Additionally, the novelty of this study is the contribution of green intellectual capital as an intangible resource for organizations integrated with top management green commitment through green human resource management practice to drive an operation in achieving sustainable business performance and a competitive advantage for future researchers. All business sectors can implement this strategy in operation, which may improve their cleaner production and service capacities.