On 26 June 2023, the International Sustainability Standards Board (“ISSB”) published its inaugural International Financial Reporting Standards Sustainability Disclosure Standards (the “ISSB Standards”) (read our previous blog post on this here).  In August 2023, the UK Financial Conduct Authority (“FCA”) published Primary Market Bulletin 45, confirming its intentions to update its climate-related disclosures for listed companies under the Listing Rules (see LR 9.8.6 R (8) and LR 14.3.27 R) to reference UK-endorsed ISSB Standards.