The sustainability report as an asset, not an obligation

The sustainability report is no longer an obligation

Your company's sustainability report is no longer a CVM requirement. Resolution 244, of 29 May 2026, revoked the mandate set out in Resolution 193/2023, and from 2027 the publish-or-explain model applies. What changed, and why the preparation still pays off, is set out in CVM 244: the mandate fell, the risk did not.

What interests me here is the consequence almost nobody addressed: when publishing stops being an obligation, the document's audience changes.

Before, the end reader was the regulator. Someone assembled it, reviewed it, published it, and the task closed. Now, whoever keeps publishing does it by choice, and the reader becomes the person who decides on credit, contracts and investment.

Who actually reads your sustainability report

The bank's credit analyst wants to know whether climate can turn into a loss in your operation, and how soon that shows up on the balance sheet. The institutional investor wants to compare your figure with last year's and with your competitor's. The procurement team at a large client wants the emissions figure for the product they buy from you, because that is their Scope 3. The auditor wants to know where each line came from.

None of them will read the whole report. All of them are looking for one specific thing.

And a new reader joined the list: AI systems answering questions about your company. When someone asks an assistant what your company's reduction target is, the answer is assembled from whatever is accessible and legible. A 120-page PDF is a poor source for that. Not because the information is missing, but because it is hard to locate and hard to attribute.

What a parked PDF costs

Publishing a PDF and closing the file has a cost that appears in no budget.

In practice the document goes offline the day after publication. Nobody searches inside it. If a figure needs correcting, correcting it means republishing the whole file, and now two versions circulate at the same time. When the analyst wants to compare two years, they open two files and do the arithmetic by hand. And when someone in sales needs to send a client one section, they send the entire file.

Where the report is used after publication

Once the report starts answering questions, it turns up in places that have nothing to do with the publication calendar.

Answering a client questionnaire

A large company sends its supplier a sustainability form, on a short deadline, with specific questions about emissions per product or per site. Whoever has the data organised answers on time. Whoever does not answers with an estimate, asks for an extension, or leaves it blank.

This is where most companies discover the report is good for something. And this is where format sends the bill: if the figure exists only inside a narrative PDF, someone has to reopen the source spreadsheet to answer, which in practice means redoing part of the work.

Due diligence, the check that comes before the money

Before releasing a credit line or entering an investment round, the analyst wants a comparable history, not a stray number. Three consistent years, same boundary and same methodology, are worth more than one flattering figure from a single year.

What usually breaks here is not the emissions value, it is the silent change of scope between one year and the next. When the boundary moves and that is not declared, the years stop being comparable, and the question leaves climate behind for somewhere far more uncomfortable: whether the company controls its own numbers.

Procurement and tenders

Public tenders and private bidding have started to include emissions and climate management criteria. The report goes in as supporting evidence, and what decides the outcome is not the quality of the narrative: it is whether it carries the figure in the cut that was asked for, within the deadline of the process.

Investor relations and the press

The IR team needs the figure in the middle of a call, with the other party waiting. The journalist asks for a specific data point with a deadline measured in hours. In both cases, sending a 120-page file is the same as not answering.

The sales team

When your company sells to someone who also reports, your product emissions figure becomes that client's Scope 3. Supplying it clearly stops being a courtesy and becomes an advantage in their buying process, because it cuts the work of the team on the other side.

None of these uses calls for a prettier report. All of them call for a report you can pull a specific slice out of, with a verifiable origin.

What holds the report up under pressure

Two things are worth separating, because they get confused.

Format solves access

A navigable contents list, search, figures you can filter by year or by site, a page that updates without republishing a file, an address you can send in a message. It beats a PDF for anyone looking for something specific, and it is better for being indexed by a search engine and cited by an AI system.

Format is an access requirement. It determines whether someone finds the figure, not whether the figure holds up.

The trail solves trust

What holds the report up when someone challenges it is the trail behind each figure: the source document, the emission factor with its edition on record, and who approved what and when. It is the difference between asserting a value and showing where it came from. I wrote about how that works in practice, and what the auditor expects to find, in what an auditable ESG report actually means.

The effect that only shows up later is this: when the data is collected once with that structure, it serves the several formats each counterpart demands, from GRI to IFRS S2, from the GHG Protocol inventory to European reporting. The work is not redone at every request.

How this changes the decision

Now that publishing is a choice, the internal question stops being "are we required to?" and becomes "what does this document do for us after it is published?".

If the answer is "it satisfies a requirement", a PDF will do, and the cost is whatever is in the budget.

If the answer is "it holds up our conversation with the people who finance us, buy from us and audit us", then the sustainability report is infrastructure, not a communications piece. And infrastructure is judged on one thing only: whether it holds when someone pulls on it.