The chapter summarises the most commonly used sustainability reporting standards and presents their use by listed companies globally. It also covers use and preferences of reporting standards by public companies in Brazil. The chapter then summarises the main concepts of materiality for corporate disclosure and discusses the main challenges related to the adoption of each concept. It also analyses the market value of companies in industries where sustainability issues is considered to be financially material in Brazil and in selected countries. The chapter concludes with an overview of the current regulatory framework for sustainability disclosure in Brazil.