Non-convertible securities rules define instruments, actors, offer documents, and green/ESG bond eligibility categories. Regulation 2 provides defining provisions for issuance and listing of non-convertible securities, specifying instrument classes, market actors and document types for public issues and private placements, and defining Green debt security and ESG Debt Securities by eligible project categories; it also clarifies operational terms such as working day, secured debt securities, and adopts cross-references to company and securities laws for undefined terms.