Sustainability-Linked Financing Disputes 

1. Introduction

Sustainability-linked financing (SLF) is a form of financing in which the economic terms of a loan, revolving credit facility, bond, private placement, or other financial instrument are linked to the borrower's performance against specified environmental, social, or governance (ESG) targets.

The most common structure is a sustainability-linked loan (SLL). Unlike a conventional green loan, the proceeds of an SLL generally need not be applied exclusively to a particular green project. Instead, the borrower receives a financial incentive—usually a reduction or increase in interest or margin—depending upon whether it achieves predetermined sustainability performance targets (SPTs).

For example:

A company obtains a ₹1,000 crore loan. Its interest margin is reduced by 5 basis points if it reduces greenhouse-gas emissions by 20%, but increased by 5 basis points if it fails to meet the target.

This apparently simple mechanism creates substantial legal issues concerning:

accuracy of ESG data;

calculation of carbon emissions;

selection of KPIs;

baseline methodology;

independent verification;

sustainability certificates;

margin ratchets;

misrepresentation;

greenwashing;

disclosure obligations;

auditor or verifier liability;

refinancing;

force majeure;

changes in law;

restructuring;

lender remedies; and

arbitration.

Importantly, reported judicial decisions specifically concerning modern sustainability-linked loans remain relatively limited because SLLs are a relatively new financial product. Consequently, courts and arbitral tribunals are likely to rely heavily upon established principles of contract interpretation, misrepresentation, financial disclosure, securities law, banking law, evidence, and arbitration.

2. Basic Structure of Sustainability-Linked Financing

A typical SLF transaction contains the following components:

A. Financing Agreement

The principal loan or financing agreement establishes:

principal amount;

interest;

repayment;

security;

events of default;

representations and warranties;

financial covenants; and

dispute-resolution provisions.

B. Key Performance Indicators

The borrower and lenders select measurable KPIs.

Examples include:

greenhouse-gas emissions;

carbon intensity;

renewable-energy consumption;

water consumption;

waste reduction;

occupational safety;

gender diversity;

energy efficiency;

biodiversity indicators.

C. Sustainability Performance Targets

The KPI is converted into a measurable target.

For example:

D. Margin Ratchet

The financing price changes according to performance.

A borrower may receive:

margin reduction for achieving the target;

margin increase for missing the target; or

a neutral result where neither adjustment applies.

Modern SLL documentation commonly uses two-way adjustments rather than merely providing a discount. (White & Case)

E. Sustainability Verification

The borrower generally supplies:

annual sustainability reports;

KPI certificates;

sustainability compliance certificates;

external assurance reports; and

calculations supporting the KPI result.

F. Dispute Resolution

The contract may provide for:

courts;

institutional arbitration;

ad hoc arbitration;

expert determination;

auditor determination; or

a multi-stage process combining technical determination and arbitration.

3. Major Categories of Sustainability-Linked Financing Disputes

3.1 KPI Measurement Disputes

One of the most likely disputes concerns the measurement of the KPI itself.

Suppose the agreement states:

"The borrower shall reduce Scope 1 emissions by 20%."

A dispute may arise concerning:

whether Scope 1 emissions include particular subsidiaries;

whether acquired companies are included;

whether divested assets are excluded;

treatment of joint ventures;

treatment of carbon offsets;

accounting methodology;

treatment of extraordinary events; and

whether the baseline can be recalculated.

Legal question

The tribunal must determine whether the contractual definition of the KPI is sufficiently precise.

The central principle is that the tribunal interprets the KPI according to the financing agreement, rather than simply applying whichever ESG methodology one party subsequently prefers.

4. KPI Change and Baseline Disputes

This becomes particularly important in long-term facilities.

Assume that:

the original baseline was established in 2024;

the borrower acquires another company in 2026;

the acquired company's emissions dramatically increase total emissions.

The borrower may argue that the acquisition should trigger baseline recalculation.

The lender may argue that doing so would allow the borrower to avoid its contractual sustainability obligation.

The financing agreement should therefore address:

acquisitions;

disposals;

mergers;

restructuring;

changes in accounting standards;

changes in ESG methodology;

changes in business operations;

changes in reporting boundaries; and

changes in law.

5. Sustainability Margin Ratchet Disputes

The margin ratchet is often the principal economic mechanism.

Suppose:

base interest = 8%;

achievement of SPT = −5 basis points;

failure = +5 basis points.

If the borrower claims it achieved the target but the lender disagrees, a dispute arises over the applicable interest rate.

The consequences can include:

retrospective interest adjustment;

repayment of incorrectly received discounts;

additional interest;

default interest;

indemnification;

costs; and

potentially an event of default.

Some SLL structures expressly provide mechanisms for retroactive adjustment where a KPI dispute delayed the correct margin calculation.

6. Sustainability Certificate Disputes

The borrower may be required to provide a certificate stating:

"The borrower achieved SPT-1 for the relevant sustainability performance period."

A lender may subsequently discover that:

data was incomplete;

subsidiaries were excluded;

calculations were incorrect;

emissions were improperly classified;

data was manipulated; or

the external verifier relied on incorrect information.

The legal issue then becomes whether the certificate is:

merely evidence;

a contractual certification;

a representation and warranty;

a condition precedent; or

a conclusive determination.

The wording of the financing documents becomes crucial.

7. Greenwashing and Misrepresentation

This is one of the most significant future areas of litigation.

A borrower may describe itself as:

"carbon neutral,"
"net-zero aligned," or
"a sustainability leader"

while its underlying data does not support those statements.

If lenders relied upon those representations in agreeing to favorable financing terms, possible causes of action include:

fraudulent misrepresentation;

negligent misrepresentation;

contractual misrepresentation;

breach of warranty;

breach of disclosure obligations;

securities-law violations;

fraud;

restitution; and

damages.

The distinction between intentional deception and innocent technical error will be critical.

8. ESG Data Fraud

Consider:

A borrower reports a 30% reduction in emissions, thereby obtaining a lower interest margin.

Later an investigation establishes that the borrower:

excluded a subsidiary;

changed the emissions boundary;

improperly counted carbon credits; or

manipulated measurement data.

The lender could seek:

Contractual remedies

repayment of the margin benefit;

increased interest;

indemnity;

damages;

event of default.

Tort/statutory remedies

Depending upon the jurisdiction:

fraud;

negligent misstatement;

securities fraud;

regulatory penalties.

Arbitral remedies

Where an arbitration clause exists:

declaration of breach;

monetary damages;

restitution;

interest;

costs.

9. Role of Independent Sustainability Auditors

Many SLL structures use independent verification.

The verifier may determine whether:

KPI = 82.4 tonnes CO₂ per unit of production.

A dispute may then arise between:

borrower and lender;

lender and sustainability coordinator;

borrower and verifier;

syndicate members; or

borrower and calculation agent.

A major drafting issue is whether the auditor's determination is:

Conclusive

or

Subject to challenge

or

Conclusive only in the absence of manifest error.

A well-drafted agreement should define the standard.

10. Expert Determination versus Arbitration

Technical ESG questions are sometimes better suited to expert determination.

For example:

"Has the borrower's carbon intensity been reduced by 15% under the agreed methodology?"

An environmental expert may be better placed to answer this than a generalist arbitrator.

However, the ultimate contractual consequences—such as whether the borrower owes additional interest—may be legal questions.

A sophisticated dispute-resolution mechanism can therefore provide:

Stage 1 — ESG auditor determination

↓

Stage 2 — Expert review

↓

Stage 3 — Arbitration

↓

Stage 4 — Enforcement

This avoids asking arbitrators to independently reconstruct highly technical emissions calculations.

11. Force Majeure and Sustainability Targets

A borrower may argue that it missed its target because of:

war;

pandemic;

natural disaster;

government restrictions;

supply-chain disruption;

energy shortages;

technological failure; or

regulatory change.

For example:

A company promised to obtain 70% of its electricity from renewable sources, but the government unexpectedly restricted grid access to renewable power.

The question becomes whether the contract permits the target to be adjusted.

A general force-majeure clause may not automatically modify an ESG target. The contract should expressly address:

regulatory changes;

methodology changes;

market disruption;

extraordinary events;

acquisitions;

disposals; and

technological developments.

12. Material Adverse Change and ESG Events

A serious environmental event may also trigger conventional financing provisions.

For example:

A borrower suffers a major environmental disaster causing substantial reputational and financial damage.

The lender may argue that:

a representation became inaccurate;

a covenant was breached;

a material adverse effect occurred;

an ESG controversy provision was triggered.

Some SLL documentation specifically contemplates a "Severe Event" or "ESG Controversy" mechanism under which ESG pricing provisions can be suspended during a serious event. (White & Case)

13. Sustainability-Linked Financing and Events of Default

A crucial drafting distinction is:

KPI failure ≠ necessarily an Event of Default.

Many SLL structures intentionally make failure to achieve an SPT primarily an economic consequence, rather than an acceleration event.

Thus:

Failure to achieve carbon target → higher interest

rather than:

Failure to achieve carbon target → immediate loan acceleration.

This distinction prevents relatively minor ESG underperformance from producing disproportionate credit consequences. (White & Case)

However, deliberate falsification of ESG information may be treated much more seriously and can potentially constitute:

misrepresentation;

fraud;

breach of information covenant;

event of default.

14. Sustainability-Linked Bonds

The same disputes can arise in sustainability-linked bonds.

Potential disputes include:

coupon step-up;

KPI calculation;

failure to meet SPT;

reporting obligations;

verification;

redemption;

disclosure;

trustee powers.

The difference is that bond disputes may involve:

bondholders;

trustees;

paying agents;

calculation agents;

rating agencies;

guarantors; and

multiple jurisdictions.

This makes jurisdiction and collective-action issues particularly important.

15. Six Important Case Laws and Their Relevance

Because reported decisions directly addressing modern SLLs are still limited, the following cases should be understood as analogical authorities. They establish legal principles likely to be applied to sustainability-linked financing disputes.

Case 1 — Rainy Sky SA v Kookmin Bank

[2011] UKSC 50

Principle

The UK Supreme Court emphasized that contractual interpretation should identify the meaning the document would convey to a reasonable person, considering the language and commercial context.

Relevance to SLF

This is highly relevant to ambiguous provisions concerning:

KPI definitions;

SPT calculations;

margin adjustments;

reporting requirements;

baseline calculations.

Suppose a contract says:

"Emissions shall be calculated in accordance with internationally recognized standards."

The parties disagree about which standard applies.

A tribunal should interpret the provision within the overall contractual and commercial context.

Practical lesson

SLL documentation should avoid vague expressions such as:

"reasonable sustainability performance";

"substantial reduction";

"internationally accepted methodology."

Instead, the contract should specify the exact methodology.

Case 2 — Arnold v Britton

[2015] UKSC 36

Principle

The Supreme Court emphasized that courts should not rewrite a contract merely because one interpretation produces a commercially unattractive result.

Relevance to SLF

This is particularly important where an ESG provision produces an unexpected financial consequence.

Suppose:

Missing an SPT causes a substantial increase in interest.

The borrower may argue that the consequence is commercially excessive.

The tribunal should generally enforce the bargain actually made rather than redesigning the sustainability mechanism.

Application

If the contract clearly provides:

"Failure to satisfy SPT-2 shall result in a 10-basis-point increase"

the tribunal is unlikely to substitute its own preferred percentage simply because the increase appears harsh.

Lesson

Precision at drafting stage is more important than asking the tribunal to correct a bad bargain later.

Case 3 — Wood v Capita Insurance Services Ltd

[2017] UKSC 24

Principle

The Supreme Court reaffirmed that contractual interpretation involves reading the contract as a whole, balancing textual and contextual considerations.

Relevance to SLF

SLL provisions rarely operate independently.

The tribunal may need to read together:

facility agreement;

sustainability schedule;

KPI definitions;

verification report;

calculation methodology;

reporting covenant;

margin-ratchet clause.

For example, a definition in the sustainability schedule may modify the meaning of "KPI" in the principal financing agreement.

Practical significance

The tribunal should avoid interpreting the sustainability schedule in isolation.

Case 4 — Abry Partners V, L.P. v F & W Acquisition LLC

891 A.2d 1032 (Del. Ch. 2006)

Principle

The Delaware Court of Chancery dealt extensively with contractual limitations concerning fraud and misrepresentation in sophisticated commercial transactions.

The case is important for the proposition that sophisticated parties can allocate contractual risks through detailed drafting, but contractual provisions cannot necessarily be used to immunize deliberate fraudulent conduct.

Relevance to SLF

This is particularly important where ESG information is deliberately falsified.

For example:

Borrower intentionally manipulates emissions data to obtain a lower interest rate.

The borrower cannot safely assume that a broad contractual limitation of liability will necessarily eliminate consequences for intentional fraud.

Application

SLL contracts should distinguish between:

innocent calculation errors;

negligent reporting;

gross negligence;

deliberate misrepresentation;

fraud.

Different consequences should attach to each.

Case 5 — Francisco v Abengoa, S.A.

S.D.N.Y., 2020

This litigation concerned disclosures and alleged misrepresentations associated with Abengoa's financial condition, including treatment of its "Greenfield Bonds."

The litigation demonstrates the significance of accurate classification and disclosure of financing information where investors rely upon financial statements and representations. (Justia Law)

Relevance to sustainability-linked financing

The analogy is particularly important where an issuer or borrower makes statements about:

debt;

sustainability financing;

environmental projects;

financial ratios;

use or classification of financing.

If ESG-linked financing information is materially misleading, the consequences can extend beyond the loan contract into securities and disclosure law.

Lesson

An ESG label does not eliminate ordinary financial-disclosure obligations.

Case 6 — Volkswagen AG Securities Litigation / Diesel Emissions Litigation

The Volkswagen "Dieselgate" litigation is an important ESG-related precedent concerning alleged manipulation and misrepresentation of emissions information.

Principle

Environmental performance information can have substantial legal and financial consequences when representations concerning emissions are false or misleading.

Relevance to SLF

The connection with SLLs is obvious:

Environmental KPI → financing benefit → false environmental data.

If the environmental data is manipulated, the borrower may face:

contractual liability;

regulatory liability;

investor claims;

lender claims;

reputational consequences.

Important distinction

Volkswagen litigation was not an SLL case. Its relevance is principally evidentiary and doctrinal: it illustrates the legal consequences that can arise from unreliable environmental representations.

Case 7 — Exxon Mobil Corporation Climate-Disclosure Litigation

Various shareholder and securities proceedings concerning ExxonMobil's climate-related disclosures demonstrate the growing importance of climate-related information in corporate and investment decision-making.

Relevance

An SLL borrower may make representations concerning:

emissions trajectories;

transition plans;

climate risk;

carbon-reduction commitments.

If those statements influence financing terms, they may become legally significant contractual representations.

Lesson

The more prominently ESG information is incorporated into financing documentation, the more likely it is to acquire contractual and legal significance.

Case 8 — Chloro Controls India Pvt. Ltd. v Severn Trent Water Purification Inc.

(2013) 1 SCC 641

Principle

The Indian Supreme Court examined the scope of arbitration agreements and the circumstances in which non-signatories may become relevant to arbitration.

Relevance to SLF

Modern sustainability-linked financing frequently involves:

borrower;

lender;

arranger;

sustainability coordinator;

facility agent;

security trustee;

guarantor;

verifier.

A dispute may therefore involve parties beyond the principal borrower and lender.

Example

Suppose:

The sustainability coordinator determines that the borrower failed an SPT.

The borrower argues that the coordinator's determination is invalid.

The question becomes:

Is the coordinator bound by the arbitration agreement?

The arbitration clause should expressly identify the relevant participants and the disputes covered.

16. Indian Arbitration Principles Relevant to SLF

Bharat Aluminium Co. v Kaiser Aluminium Technical Services Inc.

(2012) 9 SCC 552

The Supreme Court's discussion of the territorial framework of arbitration is relevant when sustainability-linked financing involves:

foreign lenders;

Indian borrowers;

offshore financing;

foreign-seated arbitration.

Relevance

A financing agreement should clearly identify:

seat;

governing law;

institutional rules;

language;

number of arbitrators.

For cross-border SLF transactions, uncertainty concerning the seat can produce unnecessary jurisdictional litigation.

17. Ssangyong Engineering & Construction Co. Ltd. v NHAI

(2019) 15 SCC 131

Principle

The Supreme Court discussed the limited scope of judicial interference with arbitral awards under Section 34 after the Arbitration and Conciliation Act amendments.

Relevance

An arbitral tribunal dealing with an SLL dispute may need to decide complex factual questions concerning:

emissions;

accounting;

expert evidence;

KPI calculations;

contractual methodology.

Once the tribunal reaches a reasoned determination within its jurisdiction, judicial interference remains limited.

Practical consequence

Parties should present their technical evidence properly before the tribunal rather than expecting a court to undertake a complete rehearing.

18. ONGC v Saw Pipes Ltd.

(2003) 5 SCC 705

Although the public-policy standard has subsequently been modified by legislative developments and later Supreme Court decisions, the case remains historically significant for understanding judicial review of arbitral awards.

Relevance

An SLL award could potentially be challenged if it suffers from serious legal defects.

However, modern Indian arbitration law places substantial emphasis on minimal judicial intervention.

19. Vidya Drolia v Durga Trading Corporation

(2021) 2 SCC 1

Principle

The Supreme Court established an important framework concerning arbitrability and the limited role of courts at the referral stage.

Relevance to SLF

Ordinary contractual disputes involving:

KPI calculation;

interest adjustments;

reporting obligations;

sustainability certificates;

contractual damages

are generally suitable for arbitration where the parties have agreed to arbitrate.

However, statutory/regulatory claims involving non-arbitrable rights may require separate analysis.

20. Summary of the Case-Law Position

21. Burden of Proof in an SLL Dispute

A tribunal may need to determine who bears the burden of establishing KPI achievement.

Borrower

Normally possesses the relevant ESG data and may therefore be required to produce:

calculation sheets;

underlying data;

sustainability reports;

internal records;

auditor correspondence;

emissions inventories.

Lender

May need to demonstrate:

breach;

inaccurate certification;

failure to meet target;

contractual entitlement to additional interest.

Auditor

May become relevant where the dispute concerns:

methodology;

verification;

reasonable assurance;

limited assurance;

calculation error.

22. Expert Evidence

Sustainability disputes are particularly suitable for expert evidence.

Possible experts include:

Environmental experts

For:

carbon accounting;

emissions;

biodiversity;

water usage.

Financial experts

For:

margin calculations;

interest adjustments;

financial consequences.

ESG specialists

For:

KPI methodology;

sustainability standards;

industry benchmarks.

Accounting experts

For:

reporting boundaries;

consolidation;

baseline calculations.

The tribunal should carefully distinguish between:

Expert evidence about what happened

and:

Legal interpretation of what the contract requires.

The latter remains the tribunal's responsibility.

23. Fraudulent ESG Certification

One of the most serious disputes would involve intentional certification fraud.

Example

Borrower reports:

25% emissions reduction.

Actual reduction:

12%.

Because of the false certification, the borrower receives:

10-basis-point margin reduction.

The lender may seek:

repayment of improperly obtained interest benefits;

contractual damages;

indemnity;

default interest;

declaration of breach;

termination or acceleration, if contractually permitted;

costs;

potentially fraud-related remedies.

The seriousness increases if the borrower knew that the figures were false.

24. Greenwashing versus KPI Failure

These concepts should not be confused.

KPI failure

The borrower honestly reports:

"We achieved only 80% of the target."

This may simply result in:

higher interest.

Greenwashing/misrepresentation

The borrower states:

"We achieved the target"

while knowing that it did not.

This may constitute:

contractual breach;

misrepresentation;

fraud;

regulatory violation.

Thus, the truthfulness of reporting can be legally more important than the mere failure to achieve the sustainability target.

25. Disputes Concerning Sustainability Methodology

A major problem is that ESG methodology can evolve.

For example:

In 2025, the parties use Methodology A.

In 2028:

The industry adopts Methodology B.

The borrower wants Methodology B because it produces a better result.

The lender insists upon Methodology A.

Unless the contract contains a methodology-change mechanism, this can become a substantial contractual dispute.

A good agreement should specify:

applicable methodology;

version;

hierarchy of standards;

methodology-change procedure;

independent expert;

materiality threshold;

recalculation mechanism.

26. Acquisitions and Divestments

Suppose the borrower acquires a high-emission business.

Its emissions immediately increase.

The borrower argues:

"The target must be recalculated because the business did not exist when the original SPT was established."

The lender responds:

"The acquisition is part of the borrower's business and cannot excuse underperformance."

The financing agreement should provide an Acquisition Adjustment Mechanism.

The same applies to:

disposals;

demergers;

spin-offs;

restructuring;

mergers.

27. Double Counting and Carbon Credits

Carbon credits create particularly complex disputes.

Suppose:

borrower reduces emissions by 10%;

purchases carbon credits equivalent to another 10%;

claims 20% reduction.

The lender may argue that the KPI only measures actual emissions reduction and excludes offsets.

The contract therefore needs to specify:

whether offsets count;

eligible carbon credits;

verification standard;

retirement requirements;

geographical restrictions;

vintage;

additionality;

double-counting rules.

28. Regulatory Change

Environmental regulation can change significantly during the life of a loan.

For example:

A government introduces mandatory emissions reductions exceeding the contractual SPT.

The borrower may argue that the target has become commercially meaningless.

Alternatively:

A new regulation makes the original KPI impossible to calculate.

The parties need a Change in Sustainability Regulation provision.

It should establish:

notification;

renegotiation;

temporary suspension;

expert determination;

replacement KPI;

termination if no agreement is possible.

29. Multi-Party Financing Disputes

Syndicated SLLs can involve numerous parties.

A dispute might involve:

borrower;

lead arranger;

facility agent;

sustainability coordinator;

lenders;

guarantor;

security trustee;

sustainability verifier.

This creates difficult questions concerning:

standing;

joinder;

consolidation;

confidentiality;

inconsistent decisions;

allocation of costs.

A carefully drafted arbitration clause is therefore essential.

30. Recommended Arbitration Clause Structure

For sophisticated SLL transactions, the dispute clause should expressly cover:

"Any dispute, controversy or claim arising out of or relating to this Agreement or the Sustainability-Linked Financing Framework, including any dispute concerning the selection, calculation, measurement, certification or verification of any KPI or Sustainability Performance Target, the application of any Sustainability Margin Adjustment, any Sustainability Performance Certificate, or any alleged misrepresentation concerning sustainability performance."

It should additionally provide for:

seat;

governing law;

institution;

number of arbitrators;

expert appointment;

confidentiality;

emergency relief;

interim measures;

consolidation;

joinder;

treatment of auditor determinations.

31. Expert Determination Clause

A useful mechanism is:

"Any dispute concerning the technical calculation of a KPI shall first be referred to an independent sustainability expert. The expert's determination shall be final and binding as to technical matters, save in the case of manifest error. Any dispute concerning the interpretation or legal effect of the KPI determination shall be resolved by arbitration."

This divides:

technical questions

from

legal questions.

That is particularly valuable in ESG financing.

32. Evidence and Disclosure

SLL disputes may involve massive quantities of ESG data.

Potential evidence includes:

energy meters;

satellite data;

environmental monitoring;

supply-chain records;

utility invoices;

carbon accounting software;

audit files;

ESG databases;

sustainability reports;

internal emails.

A tribunal may therefore need robust document-production procedures.

The parties should consider:

confidentiality;

commercially sensitive information;

personal data;

cybersecurity;

privileged documents;

expert access;

electronic evidence.

33. Remedies Available to Lenders

Depending upon the contract, lenders may seek:

Monetary remedies

additional interest;

repayment;

damages;

indemnity;

costs.

Declaratory relief

A tribunal may declare that:

SPT-2 was not achieved.

Contractual remedies

suspension of margin benefit;

termination;

acceleration;

enforcement of security.

Corrective remedies

In some circumstances:

corrected certificate;

recalculation;

revised reporting.

However, tribunals generally must remain within the remedies permitted by the contract and applicable law.

34. Remedies Available to Borrowers

Borrowers may seek:

declaration that SPT was achieved;

refund of wrongly increased interest;

damages;

correction of KPI determination;

injunction;

specific contractual relief;

declaration that an alleged default did not occur.

For example:

If the sustainability coordinator incorrectly concludes that the borrower missed the target, the borrower could seek an arbitral declaration and recovery of excess interest.

35. Limitation of Liability

SLL contracts should carefully distinguish liability for:

Ordinary errors

Potentially subject to a monetary cap.

Negligence

Potentially subject to a higher cap.

Gross negligence

Potentially excluded from the cap.

Fraud

Usually treated separately and not protected by ordinary liability exclusions.

This distinction becomes critical where ESG reporting is outsourced.

36. Importance of the Sustainability-Linked Loan Principles

The Sustainability-Linked Loan Principles (SLLPs) provide an important market framework concerning:

relationship to overall corporate strategy;

KPI selection;

calibration of sustainability performance targets;

reporting;

verification.

However, an important legal point is:

Market principles do not automatically become contractual obligations merely because they are industry standards.

The financing agreement should expressly incorporate the relevant provisions if the parties intend them to be contractually binding.

Modern financing documents expressly refer to the SLL Principles when establishing KPI calculation and certification mechanics.

37. Greenwashing Risk for Lenders

Lenders themselves may face risks.

A bank may market a facility as:

"Sustainability-linked financing."

But if the KPI is:

trivial;

unambitious;

poorly measured;

unrelated to the borrower's material sustainability impact;

the financing could attract criticism.

Therefore, lenders should conduct:

ESG due diligence;

KPI materiality analysis;

baseline verification;

target calibration;

documentation review.

38. Key Legal Questions an Arbitral Tribunal May Have to Answer

An SLL tribunal could face the following sequence:

Question 1

What does the contract define as the KPI?

Question 2

What methodology must be used?

Question 3

Was the methodology correctly applied?

Question 4

Did the borrower achieve the SPT?

Question 5

Was the sustainability certificate accurate?

Question 6

Did the lender have a contractual right to challenge the certificate?

Question 7

What margin adjustment follows?

Question 8

Was there a material misrepresentation?

Question 9

Does the breach constitute an event of default?

Question 10

What damages or restitution should be awarded?

39. Practical Example

Assume:

Loan: ₹500 crore
Base interest: 9%
KPI: Scope 1 and Scope 2 emissions
Baseline: 100,000 tonnes
SPT: 80,000 tonnes
Achievement: 78,000 tonnes
Margin reduction: 7 basis points

The borrower claims achievement.

The lender alleges:

10,000 tonnes from a subsidiary were excluded;

carbon offsets were improperly included;

the baseline was changed;

the auditor lacked adequate information.

The tribunal must determine:

Step 1

What entities are included?

Step 2

What emissions are included?

Step 3

What methodology applies?

Step 4

Were offsets permitted?

Step 5

Was the certificate contractually valid?

Step 6

Was the 20% target achieved?

Step 7

Was the margin reduction valid?

Step 8

If the borrower made a false certificate, does that constitute an event of default?

This illustrates why SLL disputes are simultaneously financial, contractual, technical and ESG disputes.

40. Indian Legal Framework

For an Indian borrower, several legal regimes may become relevant.

Arbitration and Conciliation Act, 1996

Relevant particularly for:

Section 7 — arbitration agreement;

Section 11 — appointment;

Section 16 — tribunal's jurisdiction;

Section 17 — interim measures;

Section 34 — setting aside;

Section 36 — enforcement;

Part II — foreign awards.

Indian Contract Act, 1872

Potentially relevant provisions include:

Section 17 — fraud;

Section 18 — misrepresentation;

Section 19 — voidability;

Section 73 — damages;

Section 74 — stipulated compensation/penalty.

Companies Act, 2013

May become relevant to:

corporate disclosures;

directors' duties;

financial reporting;

corporate governance.

SEBI framework

For listed entities and securities-related financing, ESG disclosures can interact with applicable securities regulations and reporting requirements.

Environmental legislation

Depending upon the KPI, regulatory environmental obligations may also become relevant.

41. Six Most Important Drafting Lessons

1. Define the KPI precisely

Do not simply say:

"carbon emissions."

Specify:

Scope 1;

Scope 2;

Scope 3, if applicable;

geographical boundary;

organisational boundary;

measurement period.

2. Define the methodology

State:

methodology;

version;

calculation formula;

data source;

accounting standard.

3. Address methodology changes

Include a mechanism for:

changes in law;

acquisitions;

disposals;

accounting changes;

ESG methodology updates.

4. Separate technical and legal disputes

Use:

expert determination → arbitration.

5. Distinguish KPI failure from fraud

A genuine failure should not necessarily equal an event of default.

Deliberate falsification should receive materially stronger consequences.

6. Specify the effect of erroneous certificates

The contract should answer:

What happens if the borrower receives a margin reduction but later discovers that its sustainability certificate was wrong?

Possible answer:

retrospective adjustment;

repayment;

default interest;

indemnity;

event of default in cases of intentional misconduct.

42. Overall Legal Position

Sustainability-linked financing disputes are likely to develop around three principal legal layers:

Layer 1 — Contract

Was the KPI/SPT achieved under the financing agreement?

Layer 2 — Information integrity

Was the ESG information accurate and honestly reported?

Layer 3 — Regulatory responsibility

Did the ESG representation violate securities, environmental, corporate, or financial regulations?

The first layer is generally the most straightforward for arbitration.

The second may involve fraud and misrepresentation.

The third may involve rights and obligations that cannot necessarily be privately determined by an arbitral tribunal.

43. Conclusion

Sustainability-linked financing represents a significant evolution in financial contracting because it converts sustainability performance into a contractual economic variable.

The central legal challenge is that ESG performance is often:

technically complex;

dependent on evolving methodologies;

difficult to measure;

subject to independent verification;

vulnerable to data disputes; and

connected with public regulatory obligations.

The most likely disputes will therefore concern KPI interpretation, baseline methodology, SPT achievement, ESG certificates, margin ratchets, sustainability verification, greenwashing, misrepresentation and contractual remedies.

Although there is still comparatively little reported case law directly addressing SLLs, established authorities such as Rainy Sky v Kookmin Bank, Arnold v Britton, Wood v Capita, Abry Partners, Francisco v Abengoa, Volkswagen-related emissions litigation, Chloro Controls, BALCO, Ssangyong, ONGC v Saw Pipes and Vidya Drolia provide a substantial doctrinal foundation.