This section presents the international framework of an EIP [8] together with its practitioners’ guide [11] in the development steps from a national level to an industrial level. These would serve as the main guideline for all stakeholders to develop new or convert their existing industrial park into an EIP.

The UNIDO, in partnership with the World Bank Group and GIZ, published the first edition of the worldwide framework for EIPs in 2017, while a revised edition was published in 2021 [8]. The goal of the framework is to standardize, on a global scale, the criteria and performance levels that must be met by industrial parks for them to be designated EIPs. In addition, the organization aims to assist stakeholders in developing and transitioning to EIPs—engaging, encouraging, and consistently recognizing EIPs—and providing benchmarks to enhance the performance, sustainability, and inclusivity of the industrial sector. The framework takes an inclusive approach and creates a mutual understanding of EIPs in four key categories of prerequisite and performance requirements, as depicted in Figure 1. These categories include park management, environmental, social, and economic. The first section of the framework presents the concept, benefits, drivers of EIP implementation, and the barriers that hinder its development process. The second and third sections discuss the approach to defining performance requirements for EIPs that covers the categories mentioned previously, followed by the future prospects of the EIP.

An EIP is a managed industrial area that encourages cooperation between different sectors and communities to improve economic, social, and environmental performance. In addition, this concept has been developed to address other interrelated issues, including resource-efficient and cleaner production, industrial symbiosis, climate change, pollution, social norms, shared infrastructure, improved risk management, and shared resources like land and ecosystem services. The primary motivations of EIPs are to reduce environmental impacts, promote efficiency gains and cost-effectiveness, facilitate community cohesiveness, build resilience to many threats, increase access to financing and technical assistance, and boost competitiveness. International industry practice and experience have shown that various economic, environmental, and social benefits have emerged from the EIP. These advantages may extend beyond what is typically expected in a business case. The advantages of the EIP extend beyond monetary considerations. They also help mitigate risks associated with obtaining necessary resources and proper authorization. In addition, they boost competitiveness, advance business growth, and enhance credibility. The EIP case studies conducted by the UNIDO also highlighted several advantages, such as improved access to financing and technical assistance, as well as policy, economic, and societal benefits.

Moreover, establishing an EIP framework and strategic planning may help mitigate some of the challenges associated with its implementation. Many industrial parks have made progress toward sustainability, but only a few mature EIPs exist. As a result, park owners, operators, and businesses face various internal and external challenges, from technological limitations to poor management. An overview of some of the significant challenges for eco-industrial development, including the legislative, technological, and socioeconomic barriers and also institutional and organizational capability. These barriers urge different levels of parties to find solutions to foster the successful development of EIPs.

The terms “industrial symbiosis” and “EIP” are sometimes used interchangeably when considering their advantages from an environmental, social, and economic standpoint. Industrial symbiosis is a collaborative strategy in which numerous independently operating businesses collaborate to exchange waste or by-products, energy, and water in addition to sharing resources and infrastructure, which is advantageous to all parties in terms of the environment and economy [12,13,14]. Industrial symbiosis is said to be a component of EIPs [15]. Therefore, it is not surprising that many of the current EIPs feature it. As a result, they have identical goals and encounter similar obstacles to achieving environmental, social, and economic gains.

To support the framework [8], the same organizations published a practitioner’s guide [11] and practitioner’s guide toolbox [16] that indicates step-by-step explanations and a toolbox for EIP development at different levels. The development of EIPs begins with the adoption of the international framework at the national level. It is then followed by the implementation of the framework at the industrial park level. Finally, the most crucial step is the implementation of industrial symbiosis. There is a wealth of literature that highlights the significant efforts made in the search for the finest tools, methodologies, and approaches to support the step of identifying opportunities for an industrial symbiosis network, including the review of industrial symbiosis tools [17,18,19], EIP

However, considering these huge efforts in developing EIPs, they demand a significant amount of collaboration and contributions from parties at all levels in such research institutions, industrial partners, policymakers, service providers, and others involved with high commitment. All the involved parties must give sufficient data. The most effective methods, technologies, and tools to find opportunities for an industrial symbiosis network need to be explored. Sufficient data should include access to a considerable quantity of supporting material. The information must include facts and specific information about the EIP members. As the EIP is home to a sizable number of organizations and businesses that collaborate closely, the data could have characteristics such as large volume, distributed storage, syntax heterogeneity, semantic heterogeneity, and privacy [15]. Lack of trust, unclear advantages, unfamiliarity with the concept of industrial symbiosis, and inadequate information exchange are some of the main issues that have been highlighted as impeding the development of the EIP [28,29,30]. Therefore, a technological approach to eliminate this constraint is urgently needed.