Hand unresolved ESG diligence questions to the right specialist

An ESG document review can reveal a mismatch without establishing its cause or consequence. A permit may describe one process while an operating diagram names another. Sending the folder to a consultant is only the start: management still needs a clear question, a suitable specialist and an answer that addresses the original uncertainty.

This guide helps business teams hand over questions outside an agreed document-review scope. The output is a scoped referral and a recorded review of the response. It is an optional working method, not a legal opinion, technical assessment or compliance determination.

Match the expertise to the question

The OECD's due diligence guidance recommends assessment competence relevant to the risk, applicable standards and local context, recognising that a team may need to combine expertise. See Question 26, page 67. IFC Performance Standard 1 calls for competent professionals and notes that external expertise may be required for technically complex issues or potentially significant adverse impacts. See paragraphs 18–19, page 6. These references do not establish which requirements apply to a particular business.

For each unresolved question, identify the required judgement. Interpretation of legal obligations belongs with appropriately qualified legal counsel. Questions about equipment, processes or measurement need a specialist competent in that technical subject. Ask the proposed reviewer to confirm relevant experience, scope, exclusions and any conflicts before sharing material.

One mismatch can require two linked answers

Consider a fictional review of Site S1. The supplied consent document names Process A. A process-flow diagram marked current names Process B. Management says the names describe the same activity, but the reviewer has no evidence that reconciles them.

Record the narrow observation: the documents use different process descriptions. Keep management's explanation attributed and unverified. Avoid recording either a breach or a harmless naming change as an established finding.

• Q1 for a process specialist: What activity is actually undertaken at Site S1, and how does it compare with the activity described as Process A? Identify any differences in inputs, equipment, outputs, emissions and waste routes, the evidence examined, and further investigation needed.

• Q2 for legal counsel: Given the confirmed activity and complete current consent records, what is the legal significance of the description mismatch, and what further legal or regulatory steps, if any, need consideration?

Q2 depends on facts that Q1 may still need to establish. Tell counsel which facts remain provisional. Ask both specialists to identify dependencies so a preliminary legal response is reconsidered if the technical findings change its assumptions.

Send a scoped referral packet

Use one short cover note with controlled links to the supporting records. Include seven things:

1. Decision and owner: the management decision affected, the internal person coordinating the answer and the agreed response date.

2. Boundary: Site S1, the relevant entity, activity and period. State what the existing review did and did not examine.

3. Question: Q1 or Q2 in full, including its connection to the other question.

4. Evidence: document names, versions, dates and exact pages or drawing references. Preserve the conflicting descriptions.

5. Uncertainty: management's explanation, missing records and assumptions awaiting confirmation.

6. Requested output: a question-specific answer, supporting evidence and reasoning, limitations, dependencies and recommended next steps.

7. Handling arrangements: authorised recipients, restricted material and who approves further access, site work or a change in scope.

Check the recipient can open the authorised files. Keep sensitive personnel records and counsel's advice in their approved locations; a general register can hold a restricted reference. Do not circulate the whole data room merely because a referral has been agreed.

Check what the returned answer actually resolves

When a report arrives, compare it with the question before changing its status. Does it address the named site, activity and period? Can the conclusion be traced to evidence? Are assumptions, exclusions and unanswered points visible? Has the receiving specialist used the latest answer to the linked question?

Suppose the process specialist confirms that the two names refer to the same equipment, but cannot establish whether the inputs changed. Q1 remains partly answered. A legal response based on unchanged inputs must retain that qualification. Neither response supports marking the whole mismatch resolved.

Record the report reference, the answer accepted for each question, the remaining gap, its owner and the next review point. If the response only recommends testing, record that recommendation and agree the next step; the underlying technical question remains open.

Keep the decision with its accountable owner

The coordinator checks that the handoff is complete without substituting their judgement for the specialist's. Management records how the answer affects its decision and any conditions or unresolved dependencies. An accepted answer can create further actions; it does not establish that those actions have been completed.

For help organising an agreed document review, findings and follow-up questions, see Nitium's ESG due diligence support or discuss the scope of your review. This advisory preparation does not provide legal opinions, independent assessment or assurance opinions, or certification.

Primary references checked 13 October 2026. The Site S1 example and referral method are illustrative.