Sustainable Finance, Green Bonds & Sustainability-Linked Financing

by tahmidrahman1995@gmail.com | Sep 20, 2026

Corporate & FinancePractice area

Sustainable Finance, Green Bonds & Sustainability-Linked Financing

Sustainable finance can connect capital-raising and lending with defined environmental, social or governance objectives, but the legal and commercial architecture must match the instrument. Green bonds ordinarily focus on the allocation of proceeds to eligible projects or activities; sustainability-linked financing typically links economic terms to the achievement of pre-agreed performance targets. Both demand a clear, coherent evidence base. For issuers, borrowers, lenders, investors and arrangers operating across markets, the central task is to align the stated financing purpose, governing framework, documentation, disclosures, measurement methodology and reporting timetable. Market principles, investor expectations and applicable regulation may overlap without being interchangeable, and the relevant position must be tested against the transaction and jurisdictions involved.

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Key questions

An editorial study of structure, record and direction.

focusDefined cross-border commercial decision

formatPractice-area information

approachContext, records and conditional legal analysis

The starting point

Make the next decision with the commercial context in view.

A sustainable label is not a substitute for transaction design. The choice between a use-of-proceeds instrument and a sustainability-linked structure can affect eligibility criteria, KPI selection, target calibration, allocation or performance reporting, assurance, remedies and communications throughout the financing lifecycle. The EU’s European Green Bond Regulation illustrates the importance of distinguishing a regulated label from broader market practice: it lays down requirements for issuers choosing the “European Green Bond” or “EuGB” designation and provides optional disclosure templates for environmentally sustainable and sustainability-linked bonds.[1] ICMA’s Green Bond Principles and Sustainability-Linked Bond Principles are voluntary guidelines that address transparency, disclosure and reporting in their respective markets.[2][3]

How we help

The work around the decision.

Clear legal workstreams for a defined commercial question, coordinated with the people, documents and local inputs the matter requires.

Structure selection and framework mapping.

Framing the proposed financing against its commercial purpose and the relevant use-of-proceeds or sustainability-linked model, while mapping applicable standards, regulation, investor requirements and decision points before a label or timetable is settled.

Eligible use of proceeds and project governance.

Reviewing how a proposed green or sustainable use-of-proceeds framework identifies eligible categories, evaluates and selects projects or activities, manages unallocated proceeds and records allocation decisions over the life of the instrument.

KPIs, baselines and sustainability performance targets.

Stress-testing the proposed metrics, calculation method, historical baseline, target dates, scope boundaries, data ownership and governance so that sustainability-linked terms can be understood, monitored and applied consistently.

Financing documentation and economic mechanics.

Considering how sustainability provisions interact with the principal financing documents, including conditions, representations, information undertakings, testing dates, pricing adjustments, verification, amendments, transfer and consequences of changed circumstances.

Disclosure, reporting and external review.

Coordinating pre-issuance or pre-signing materials with allocation, impact or performance reporting, external-review arrangements, supporting evidence, publication timing and the allocation of responsibility for underlying information.

Regulatory perimeter and cross-border coordination.

Identifying the regulatory, listing, offering, tax, foreign-exchange, governance and consumer or investor disclosure interfaces that may be engaged by the instrument, distribution strategy, parties, currencies and relevant markets.

Lifecycle controls, amendments and communications.

Establishing a practical route for data controls, record keeping, periodic reporting, target reassessment, acquisitions or disposals, methodology change, waiver requests, refinancing and communications that remain consistent with the agreed framework.

Context for the decision

The facts and records that shape the route.

The appropriate route depends on the parties, markets, documents, technology or assets involved, and the legal frameworks that may apply. A structured record helps keep the commercial question, evidence, ownership and specialist inputs aligned without assuming that one jurisdictional framework supplies every answer.

How should a green bond differ from a sustainability-linked bond?

The distinction should begin with the financing logic, not the label. A green bond generally commits proceeds to eligible green projects or activities, whereas a sustainability-linked bond connects financial or structural characteristics to sustainability objectives. The resulting framework, reporting and documentary issues can therefore be materially different and should be designed accordingly.[1][2][3]

What makes a KPI usable in sustainability-linked financing?

A usable KPI ordinarily needs to be relevant to the business and financing rationale, capable of consistent calculation, supported by a defined baseline and scope, and capable of timely reporting or verification. The target-setting process should also address data availability, methodology changes, organisational change and the consequences of a performance result, rather than treating a headline metric as self-explanatory.[3]

Is an external review always required?

The answer depends on the instrument, chosen label, applicable law, market expectations and transaction documents. Some frameworks recommend or require specified review arrangements, while others operate as voluntary market guidance. The EU regulation, for example, establishes a system for external reviewers of European Green Bonds, alongside its own issuer requirements; it does not determine every financing structure in every market.[1]

Questions, not prescriptions

What may matter.

These questions are general information intended to help decision-makers frame an initial discussion. The applicable position depends on the facts, current law, governing documents and relevant jurisdictions.

How should a green bond differ from a sustainability-linked bond?

What makes a KPI usable in sustainability-linked financing?

Is an external review always required?

What should be settled before marketing or signing?

Before a framework, term sheet, offering document or facility agreement is treated as final, parties may need to align the purpose and label, eligible activities or KPIs, target methodology, data sources, reporting calendar, verification, economic mechanics, governing-law issues and required approvals. The appropriate sequence depends on the proposed financing and the rules then in force, not on a generic checklist alone.

Begin with context

Put the decision into focus.

For an initial conversation, share only high-level, non-confidential context about the relevant business decision, markets, parties, documents and timetable. Do not send confidential, privileged, personal or time-sensitive material through a website enquiry.

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Legal information only. This page provides general legal information, not legal advice. It does not address the facts of any individual matter and does not create a lawyer-client relationship. The appropriate route, framework, timing and outcome depend on the applicable law, documents and circumstances.