The paper examines the problem of uncertainty in companies related to the quality of non-financial reports and how to apply an appropriate reporting framework for creating such reports in the joint- stock company Ad Plastik d.d. The research aims to verify the compliance of the company's non- financial reports with applicable regulations and guidelines and to improve transparency, accuracy, and comparability of data. Non-financial reporting includes the analysis of the impact of business activities on the economy, society, and the environment. Ad Plastik d.d. applies the Accounting Act when preparing its non-financial report and has the option to rely on guidelines, and they have chosen the GRI guidelines. In addition, the Taxonomy Regulation and Directive 2014795/EU are directly applicable. The research focuses on the importance of non-financial reports for understanding business models, risks, plans, and long-term strategies of the company. Ad Plastik d.d. stands out as an example of a company strongly committed to sustainable business practices and socially responsible actions, transparently reporting activities focused on environmental protection, respect for human rights, and care for employees and the community. The company recognizes the significance of transparency to better comprehend its societal impact and contribution to sustainable development, with the goal of 48 continuing improvements and directing resources towards sustainable objectives. Ad Plastik d.d. is a leader in sustainable development within the automotive industry and society as a whole, focusing on innovation, collaboration with customers and suppliers, and continuous business improvement,