Аннотация:The relevance of this research lies in the increasing global focus on sustainable development,the growth of the green economy, and the pursuit of national and internationalgoals in these areas. This study examines the role of environmental collaboration modelsand green business integration in implementing environmental and technological projectsto achieve sustainable development goals aimed at the enhancement of resource efficiencyand environmental performance within companies. Open environmental collaborationbusiness models generate additional value and competitive advantages by leveraging thesynergistic integration of resources and knowledge among all participants. The study’smethodological foundation includes systems analysis and comparative analysis. The findingsidentify the key characteristics of open environmental collaboration business modelsand propose recommendations for establishing a system to assess green integration projects.The proposed approach was validated through application at one of the largest pulp andpaper manufacturers. As a result of the implementation of the environmental collaborationbusiness model, the profit of Syktyvkar Forest Industry Complex increased four times,revenue almost doubled, product output increased by 89%, and asset value increasedby 62%. The study contributes to a deeper understanding of how industrial integrationimpacts regional green development. It also provides empirical insights and policy recommendationsfor businesses and governments to promote environmental collaboration andadvance green development through knowledge and technology transfer.