ESG and arbitration: turning sustainability commitments into enforceable obligations

The integration of ESG principles into contractual frameworks has transformed what were once aspirational commitments into enforceable obligations. Across sectors, businesses are embedding environmental, social and governance duties into supply chain agreements, financing instruments, and investment treaties.

These clauses increasingly go beyond broad declarations of ethical intent: they establish detailed due diligence duties, regular sustainability reporting, measurable key performance indicators, and termination rights for non-compliance. In some cases, they even reference specific international benchmarks such as the UN Guiding Principles on Business and Human Rights or the OECD Guidelines for Multinational Enterprises, creating a clear normative link between corporate conduct and global sustainability standards.

The International Bar Association’s 2023 Report on the Use of ESG Contractual Obligations and Related Disputes provides concrete evidence of this shift. It identifies a growing number of commercial and investment contracts containing ESG-linked provisions, often reinforced by audit rights and grievance mechanisms that allow affected parties to seek redress. The report observes that these clauses are no longer peripheral boilerplate but operate as operational and reputational safeguards – tools by which companies can demonstrate compliance to investors, regulators, and civil society. It also highlights that such provisions are increasingly sophisticated, frequently including specific reporting cycles, external verification requirements, and remedial frameworks designed to align with the UN Sustainable Development Goals and emerging mandatory due diligence regimes (IBA ESG Report 2023, pp. 7–12).

As these obligations acquire binding force, arbitration naturally becomes the principal forum for their enforcement. International arbitration already provides a neutral venue for complex cross-border disputes, and its procedural flexibility allows tribunals to interpret ESG clauses that may blend contractual, regulatory, and soft-law elements. Moreover, the confidential nature of arbitration offers parties a mechanism to resolve sensitive sustainability-related issues, such as alleged human-rights violations or environmental harm, without triggering immediate public controversy. For these reasons, the evolution of ESG clauses is not only reshaping the substance of commercial agreements but also expanding the scope of disputes that arbitral tribunals are called upon to resolve (IBA ESG Report 2023).

Why disputes are starting to surface
The acceleration of ESG-related disputes reflects a convergence of regulatory pressure, contractual innovation, and heightened accountability expectations across global markets. The first and most immediate driver is the expanding web of mandatory sustainability reporting and due diligence obligations. The EU Corporate Sustainability Reporting Directive (Directive 2022/2464), for example, requires large undertakings and listed SMEs to disclose extensive data on environmental performance, human-rights impacts, and governance practices. These disclosures must follow harmonised European Sustainability Reporting Standards, creating a formalised evidentiary basis that counterparties, investors, and civil society actors can scrutinise. Once that information becomes public and comparable, discrepancies between stated commitments and actual performance often give rise to claims of misrepresentation, non-compliance, or breach of covenant (Directive 2022/2464, Arts. 1–4).

At the same time, the global energy transition and decarbonisation agenda have created a fertile context for disputes over implementation risk. Transition projects, particularly those involving renewable infrastructure, carbon capture, and hydrogen production, are subject to complex and evolving regulatory frameworks. Contractual parties must navigate shifting subsidy regimes, fluctuating carbon prices, and supply chain disruptions. Disagreements commonly arise over cost allocation, force majeure, and change-of-law provisions. Analyses of the emerging “green hydrogen” market highlight that ambitious decarbonisation targets, combined with technological uncertainty and long-term investment horizons, make disputes almost inevitable in high-value energy contracts.

A third and increasingly visible category of ESG conflict concerns greenwashing and reputational claims. As sustainability disclosures and marketing statements proliferate, stakeholders are more frequently challenging the truthfulness of ESG representations. Misstated climate targets, overstated emissions reductions, or false claims of ethical sourcing can all trigger contractual, tortious, or statutory claims, some of which are finding their way into arbitration when the relevant agreements contain arbitration clauses. The number of disputes alleging misleading environmental and social claims has sharply increased, particularly in sectors such as finance, fashion, and consumer goods[1].

A further source of contention lies in supply chain governance. Global value chains have become the operational heart of corporate ESG compliance, and obligations are cascading from multinational buyers to suppliers and subcontractors. Clauses requiring adherence to human-rights standards, anti-bribery measures, and decarbonisation targets are now standard in procurement contracts. When violations occur, such as labour abuses or failure to meet emissions thresholds, disputes often arise over responsibility and remedy. The IBA ESG Report (2023) identifies this as one of the fastest-growing categories of ESG-related disputes, with arbitration increasingly being used to address cross-border grievances involving complex factual matrices and multiple jurisdictions.

Finally, there is a structural reason why ESG disputes are proliferating: the growing financial materiality of sustainability performance. ESG outcomes now influence access to capital, insurance premiums, and share valuations. Breaches of ESG covenants or sustainability-linked loan terms can therefore have direct economic consequences, turning what were once reputational risks into quantifiable losses. The Guide on Damages Relating to ESG Issues in international arbitration underlines that tribunals are now facing questions about valuing harm linked to environmental degradation, human-rights impacts, or loss of “social licence to operate” – issues that require both legal and expert assessment beyond traditional contract damages models (Munson S. and Lefranc J., 2024).

Together, these dynamics explain why ESG is no longer a peripheral theme but a core driver of contemporary arbitration. The rise of mandatory transparency regimes, the economic embedding of sustainability metrics, and the contractualisation of ethical conduct are creating a steady pipeline of disputes that test both the adaptability and legitimacy of international arbitration as a forum for resolving society’s most complex commercial challenges (IBA ESG Report 2023; Directive 2022/2464).

Advantages of arbitration
Despite the growing complexity of ESG-related disputes, arbitration remains the preferred forum for resolving them. Its enduring appeal lies in a combination of neutrality, flexibility, enforceability, and global reach – qualities that are particularly valuable when ESG obligations intersect with differing regulatory systems and cultural expectations.

A principal advantage is procedural flexibility. Arbitral proceedings can be tailored to accommodate the technical and interdisciplinary nature of ESG issues, which often combine legal, environmental, and social dimensions. Arbitrators can authorise the use of scientific or sustainability experts, coordinate multilingual evidence from multiple jurisdictions, and adapt procedural timetables to the urgency of environmental or human-rights concerns. This adaptability allows tribunals to address disputes that might otherwise be too complex or politically sensitive for domestic courts (Won Moon J and others, 2022).

Arbitration also offers neutrality and predictability in cross-border ESG disputes. Many ESG commitments, such as human-rights due diligence clauses, emissions targets, or social impact covenants, bind parties from jurisdictions with very different regulatory and judicial capacities. Arbitration provides a neutral venue that minimises perceived bias and ensures that disputes are heard under stable procedural rules. This neutrality is particularly valuable for supply chain agreements between corporations in the Global North and contractors in emerging markets, where concerns over judicial independence or enforcement can deter recourse to local courts.

A further attraction lies in enforceability. ESG obligations are increasingly linked to financial undertakings, such as sustainability-linked loans, performance-based remuneration, or carbon offset arrangements, where enforceable awards are essential. The ability to obtain recognition and enforcement of arbitral awards under the New York Convention ensures that ESG-related decisions can be made effective in nearly every jurisdiction, reinforcing confidence that sustainability promises have legal weight.

Confidentiality remains a double-edged feature but continues to draw parties toward arbitration. Many ESG disputes involve allegations that could significantly affect brand reputation or investor relations, such as accusations of environmental harm, labour violations, or misleading disclosures. Arbitration allows companies to address such claims without immediate exposure to public litigation, preserving reputational stability while still providing a structured forum for accountability. Confidentiality also creates space for settlement and remediation measures that might be more difficult under public scrutiny (Barnett J and others, 2025).

Finally, the capacity of arbitration to integrate transnational norms, including references to international environmental law, soft-law standards, and human-rights principles, enhances its suitability for ESG-related disputes. Tribunals have increasing discretion to consider non-binding but influential frameworks such as the UN Guiding Principles and the OECD Guidelines when interpreting ESG clauses or assessing due diligence obligations. This interpretive flexibility allows arbitration to evolve alongside global sustainability norms, providing a forum that is not only legally effective but normatively responsive (IBA ESG Report 2023).

Taken together, these features explain why arbitration remains at the centre of the ESG dispute-resolution landscape. Its procedural adaptability, global enforceability, and ability to bridge divergent legal cultures make it uniquely positioned to manage the next generation of sustainability-related claims- so long as it continues to evolve in parallel with the expectations of transparency and accountability that ESG demands (IBA ESG Report 2023).

ESG and arbitration in the UK
The UK is building one of the more developed ESG regulatory environments in Europe outside the EU, and that is likely to translate into more ESG-related contractual disputes choosing London and UK-based institutions.

The government’s 2023 Green Finance Strategy set out an ambition to make the UK a ‘net zero-aligned financial centre’, which in practice means more disclosure, clearer transition planning, and closer scrutiny of sustainability claims across finance and the real economy (UK Green Finance Strategy 2023). As firms hard-wire those requirements into loan agreements, investment terms and supply chain contracts governed by English law, they also carry across the dispute-resolution clauses that typically point to arbitration seated in London.

A second push comes from financial regulation. The Financial Conduct Authority’s Sustainability Disclosure Requirements and investment-labelling regime require UK-authorised firms to make sustainability claims that are “fair, clear and not misleading,” and introduce an anti-greenwashing rule of general application (FCA PS23/16, Nov. 2023; FCA SDR and labelling regime, Feb. 2024). Whenever sustainability-linked products or mandates are documented under English law, a mismatch between what was marketed and what was delivered can be reframed as breach, misrepresentation or failure to meet ESG KPIs. If those instruments contain arbitration clauses, as many bespoke investment and asset-management agreements do, disputes will be channelled into arbitration rather than the courts (FCA PS23/16; FCA anti-greenwashing rule 2024).

The UK has also kept human-rights and supply-chain risk in view. Updated Home Office guidance on transparency in supply chains under the Modern Slavery Act 2015 encourages businesses to demonstrate concrete steps to prevent forced labour in their operations and suppliers, and recent procurement guidance does the same for public buyers (Home Office, Transparency in supply chains, July 2025; UK Government, Tackling modern slavery in government supply chains, April 2025).

Companies that replicate those obligations in commercial contracts, for example by requiring tier-one suppliers to mirror modern-slavery statements or to permit audits, are creating ESG clauses capable of arbitration when non-compliance is alleged, particularly in labour-intensive or high-risk sourcing sectors (Home Office 2025; UK supply-chain guidance 2025).

On the climate side, transition-plan work led by HM Treasury’s Transition Plan Taskforce has given UK-listed and financial firms a detailed framework for disclosing how they will reach net zero, including governance, metrics and engagement expectations (TPT Disclosure Framework, Oct. 2023; UK consultation on transition-plan requirements, June 2025). Once those transition promises are embedded in financing or JV agreements, counterparties have a benchmark against which to test performance. Failure to produce or follow a credible transition plan can therefore become an arbitrable issue where the contract provides for it (TPT 2023; UK Green Finance Strategy 2023).

All of this sits on top of a mature arbitration framework that the UK has deliberately kept stable. The Law Commission’s 2023 final report on the Arbitration Act 1996 – now reflected in the new Arbitration Act – confirmed that only targeted reform was needed to keep London attractive, strengthening disclosure duties and arbitrator immunity but leaving the core model of party autonomy and court support intact (Law Commission, Arbitration: Final Report and Summary, Sept. 2023; Arbitration Bill Explanatory Notes 2024). That stability is important for ESG disputes, which already involve moving regulatory targets; parties want the procedure, seat and enforcement environment to be a predictable part of the equation. London’s main institution, the LCIA, has also been nudging practice toward more sustainable and inclusive proceedings through its equality, diversity and innovation initiatives, which align with the wider ESG narrative and will make it easier to justify using arbitration for disputes that have public-interest overtones (LCIA EDI Guidelines 2024; LCIA Annual Casework Report 2024).

Taken together, the UK’s position can be summed up fairly simply: regulation is making ESG promises more specific and more public, business is importing those promises into English-law contracts, and a tried-and-tested arbitration regime is standing ready to enforce them. That combination makes London an obvious venue for the next wave of ESG-related arbitrations, especially those involving finance, supply chains and transition-plan delivery, provided tribunals continue to accommodate the evidential and sometimes public-interest features of these disputes (Green Finance Strategy 2023; FCA PS23/16; Law Commission 2023).

[1] For example, First Quantum Minerals Ltd. v. Republic of Panama (II), ICSID Case No. ARB/25/18; Solvay Specialty Polymers Italy v. Edison S.p.A., ICC Case No. 18666/FM/MHM/GFG; Glencore International A.G. v. Republic of Colombia, ICSID Case No. ARB/21/30.