Mayer Brown

Mayer Brown is uniquely positioned to advise the world’s leading companies and financial institutions on their most complex deals and disputes. With extensive reach across four continents, we are the only integrated law firm in the world with approximately 200 lawyers in each of the world’s three largest financial centers—New York, London and Hong Kong—the backbone of the global economy. We have deep experience in high-stakes litigation and complex transactions across industry sectors, including our signature strength, the global financial services industry. Our diverse teams of lawyers are recognized by our clients as strategic partners with deep commercial instincts and a commitment to creatively anticipating their needs and delivering excellence in everything we do. Our “one-firm” culture—seamless and integrated across all practices and regions—ensures that our clients receive the best of our knowledge and experience.

The Norwegian National Contact Point (“NCP”) issued its Final Statement on 11 December 2025 regarding a complaint filed by SOMO on behalf of 474 Myanmar-based civil society organisations (“CSO”) against Telenor ASA (“Telenor”) concerning Telenor’s operations and exit from Myanmar following the February 2021 military coup. The NCP concluded that Telenor did not conduct ongoing human rights due diligence commensurate with

Yesterday, 10 December 2025, the Council’s presidency and European Parliament’s negotiators reached a provisional agreement to simplify the EU’s sustainability reporting and due diligence requirements.  The provisional agreement must be now endorsed by the Council and the European Parliament, before it is formally adopted by the two institutions.  However, further changes are unlikely and the

We know our clients have been following California’s climate-disclosure laws closely – including the timing of effectiveness and the various legal challenges. This update relates to a new Ninth Circuit ruling that has effectively hit “pause” on one key pillar of California’s climate-disclosure package.

On November 18, 2025, the Ninth Circuit Court granted a partial

This update covers information regarding the California Air Resources Board (CARB) rulemaking delay for California’s climate disclosure laws, SB 253 and SB 261, as well as additional new litigation challenging the constitutionality of these laws. The bottom line for companies is that despite the rulemaking delays and ongoing litigation, the laws remain valid and in

On 17 October 2025, Regulation (EU) 2025/2083 of the European Parliament and of the Council of 8 October 2025 amending Regulation (EU) 2023/956 as regards simplifying and strengthening the carbon border adjustment mechanism (“CBAM”) was published in the Official Journal of the European Union (the “CBAM Simplification Regulation”). This is the first instrument to amend Regulation

Under international standards such as the UN Guiding Principles and the OECD Guidelines, companies are expected to conduct human rights and environmental due diligence to identify, assess, mitigate and remediate any adverse human rights or environmental impacts that they cause, contribute to or are otherwise linked to.  A failure to do so can expose a

Sustainability has undergone a profound transformation over the past two decades.  What began as a moral movement—rooted in reputation management and risk mitigation—has increasingly become a strategic business imperative.  The latest annual report published by the UN Global Compact and Accenture[1] underlines how the business case for sustainability leadership to be at the core of

We aren’t half way though August yet and already the Summer of ’25 has been a hot one for corporate sustainability disclosures in the EU and UK.

On 31 July 2025, EFRAG launched its 60-day consultation on the Exposure Drafts of the revised and simplified European Sustainability Reporting Standards (“ESRS”) for those reporting under the

On 23 July 2025, the International Court of Justice (ICJ) issued a landmark advisory opinion at the request of the United Nations General Assembly, holding that States have a legal obligation to protect the environment, including to address climate change (the “Opinion”). The Opinion also recognised that a “clean, healthy and sustainable environment” is a

On 22 May 2025, the EU banking supervisor The European Banking Authority (EBA) announced the release of several proposed amendments to its Pillar 3 disclosure requirements, previously contemplated under the CRR3 banking package. These amendments clarify ESG risk-related reporting for small and medium-sized banks, as well as expand on the guidelines for larger institutions. Feedback