Odkrywanie zagadki ESG - analiza sektorowa cech ESG i ich moc predykcyjna (*) [Uncovering the ESG puzzle – Sectorial analysis of ESG features and their predictive power] Florentina Paraschiv (Chair of Finance, Zeppelin Universität, Friedrichshafen, GER) The increasingly prominent role of Environmental, Social, and Governance (ESG) considerations in corporate strategy and investment decisions has increased the demand for reliable and comparable ESG metrics. However, a fundamental challenge persists: even similar companies within the same sector of activity show very different ESG scores, given the heterogeneity of ESG reporting. Regulators acknowledge this challenge, thereby the European Parliament's initiative to introduce sector specific European Sustainability Reporting Standards is delayed until 2026. In this study, we employ feature selection techniques to identify the sector-specific optimal sets of features to be reported for improved ESG performance. Our dataset comprises ESG data from Refinitiv for 10,935 public and private companies from three geographic regions, Asia, Europe, and the United States. Contrary to prior research, instead of simple filtering, we employ multiple feature selection methods within a nested cross-validation framework. Results show that certain ESG features are consistently important across sectors, such as features related to the sustainability of the supply chain and Corporate Social Responsibility (CSR) reporting. However, sector-specific patterns emerge in alignment with regulatory priorities. Biodiversity Impact Reduction emerges as particularly significant in the Energy sector, while Clean Technology shows high relevance in the Financial sector. Furthermore, we examine the degree of heterogeneity of ESG reporting within and across sectors and identify sector-specific ESG reporting hurdles facing regulatory reporting pressure. Stability measures conclude a high convergence of optimal sets of features across methods. All in all, we conclude that emissions reduction and CSR regulations drive the content on which companies report. (*) Joint work with Doga Alkan