ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 are standards to be used in chemical industrial processes. An Integrated Management System (IMS) includes integrated processes, integrated risk, and integrated audits; each of these must be integrated for additional organizational efficiency. According to ISO 31000:2018, Risk-based thinking is a critical ingredient to all modern management system standards (ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018). The application of each system risk separately consumes a lot of time, effort, and, money and infrastructure. ISO 9001:2015 helps management to develop better products with minimal quality risk, ISO 14001:2015 includes environmental risk and ISO 45001:2018 is dealing with OH&S risk. In all these cases, the nature of risks is different, but the way to manage the risks is similar. Our suggested integrated risk model is described that illustrates the core elements of integrated risk management in the chemical industry as a part of an integrated management system (IMS) and how they are linked with each other. This model includes such things as an incident investigation and risk assessment.