Native, deterministic calculations for selected environmental, social and governance metrics. Provides granular taxonomy criteria, non-financial taxonomy indicators, principal adverse impact components, portfolio calculations and configurable performance ratings. Versioned local resources, explicit assumptions and structured results support reproducible offline use. Does not determine legal applicability or provide a complete regulatory reporting system. Selected methods reference EU Regulations 2020/852, 2022/1288 and 2023/2772; exact editions and provision locators are supplied in the bundled source contracts. For background on the taxonomy framework, see the European Commission < https://finance.ec.europa.eu/sustainable-finance/tools-and-standards/eu-taxonomy-sustainable-activities_en>.