The EU’s Corporate Sustainability Reporting Directive (CSRD) once looked set to pull thousands of companies — and their suppliers worldwide — into detailed sustainability disclosure. The 2025–2026 “Omnibus” simplification has changed that picture significantly. For Thai companies supplying European customers, the practical question is now narrower and clearer: what will your EU buyers actually ask you for?
- What the Omnibus changed
- Are Thai companies ever directly in scope?
- The value-chain cap: your most important protection
- What to actually prepare
- What the VSME standard actually asks for
- Turning the cap into a negotiating position
- Why the English record is the one that counts
- A short readiness checklist for Thai suppliers
What the Omnibus changed
The Omnibus I package sharply narrowed CSRD’s scope. Mandatory reporting now applies only to large undertakings with more than 1,000 employees and over €450 million in net turnover; listed SMEs are fully exempt. The timeline moved too — the simplified European Sustainability Reporting Standards (ESRS) are due around mid-2026, with mandatory reporting starting in 2028 on 2027 data, and optional early adoption in 2027.
The EU’s Corporate Sustainability Reporting Directive (CSRD) once looked set to pull thousands of companies — and their suppliers worldwide — into detailed sustainability disclosure.
CSRD 2026 for Thai Suppliers | Omnibus & Value-Chain CapAre Thai companies ever directly in scope?
Most are not — but large groups can be. A non-EU company is captured if it generates more than €450 million in net EU turnover and has an EU subsidiary or branch above defined thresholds. Thai multinationals with substantial European operations should check this directly. For everyone else, CSRD reaches you indirectly, through your EU customers’ value chains.
The value-chain cap: your most important protection
This is the change Thai suppliers should understand best. The Omnibus introduced a value-chain cap: a CSRD-reporting company cannot require a business in its value chain with 1,000 employees or fewer to provide more sustainability information than the dedicated voluntary standard (the VSME). In plain terms, your large European customer can no longer push its entire reporting burden down to you. If you are a smaller Thai supplier, what you can be compelled to give is limited — and EU buyers are explicitly told to request less than even the voluntary standard where they do not need it.
What to actually prepare
- Know your number. Whether you are directly in scope or responding to a customer, it starts with a credible บัญชีก๊าซเรือนกระจก (GHG) and basic ESG data.
- Map your EU exposure. Identify which customers are CSRD reporters and what they are likely to ask under the capped, voluntary standard.
- Document in English. Whatever you provide is read, audited and consolidated in English. Inconsistencies between your Thai records and English submissions are the real risk — the same discipline that applies to CBAM data.
- Align it with your own disclosure. Responses to EU customers should match your sustainability report and any CSRD/ESRS work, so one set of numbers tells one story.
The Omnibus has made CSRD less of a blunt instrument and more of a targeted one. For Thai exporters and suppliers that is good news — but it does not remove the underlying need: clean ESG data, verified where it matters, documented accurately in both Thai and English. โอเทลโล่ อินเตอร์เนชั่นแนล helps Thai companies prepare exactly that.
What the VSME standard actually asks for
Because the value-chain cap ties what your European customers can demand to the voluntary standard for smaller businesses (the VSME), it is worth knowing roughly what that standard covers. It is deliberately lighter than the full ESRS: a basic set of general disclosures about the business, core environmental data — energy use and greenhouse-gas emissions foremost among them — and straightforward social and workforce information such as headcount and health-and-safety basics. It is designed to be answerable by a company without a dedicated sustainability team, using data most firms can assemble from existing records. For a Thai supplier, the practical takeaway is that the ceiling on what you can be compelled to provide is modest — provided your underlying data is clean and you can present it in a form a European auditor will accept.
Turning the cap into a negotiating position
The value-chain cap is not just a shield — it is leverage. When a European customer sends a sprawling ESG questionnaire, a smaller Thai supplier is entitled to point to the cap and respond within the voluntary standard rather than completing every field. Handled well, this protects your team’s time without straining the relationship. The key is to respond confidently and consistently: supply the core data cleanly, cite the standard you are reporting against, and decline over-broad requests politely with reference to the Omnibus framework. Suppliers that understand the rules end up looking more competent, not less cooperative — an advantage when a buyer is comparing sources.
Why the English record is the one that counts
Whatever a Thai supplier provides to an EU customer is read, cross-checked, audited, and consolidated in English. Your internal systems, utility bills, HR records, and emissions calculations almost certainly originate in Thai. The point where risk enters is the handover — when Thai-language source data is summarised into an English response. A figure transcribed with the wrong unit, an emissions scope described imprecisely, or a workforce metric defined differently in the two languages can turn a clean data set into a query from the customer’s auditor. These inconsistencies are the single most common, and most avoidable, problem in value-chain reporting.
The discipline that prevents it is the same one that governs any regulated bilingual disclosure: a controlled glossary of ESG and technical terms, translation by qualified linguists, and a second-linguist review so numbers and definitions match across languages. Under ISO 17100, that review step is built in. For a supplier whose English submission may sit inside a customer’s audited CSRD report, that assurance is worth having — it means one set of numbers tells one story whether it is read in Bangkok or Brussels.
A short readiness checklist for Thai suppliers
- Confirm your status. Check whether your group could be directly in scope (the EU-turnover and subsidiary thresholds) before assuming you are only an indirect responder.
- Build a defensible GHG inventory. Scope 1 and 2 at minimum, calculated on a recognised, TGO-aligned basis you can explain to an auditor.
- Identify your CSRD-reporting customers. Know which buyers are in scope and, roughly, what the capped voluntary standard lets them ask.
- Keep one master data set. Reconcile the numbers you send to EU customers with your own sustainability report and any CBAM submissions so nothing conflicts.
- Lock the bilingual terminology early. Agree the Thai–English rendering of key metrics once, then reuse it, so every response is consistent.
Prepare your CSRD value-chain response with confidence
Othello International helps Thai exporters and suppliers assemble clean ESG data, respond to EU customers within the Omnibus value-chain cap, and present it accurately in both Thai and English. Explore our ESG advisory services หรือ contact our team to prepare for the requests your European buyers will actually make.
Related ESG guides
- CBAM in 2026: What Thai Exporters Must Do as the Definitive Phase Begins
- The 56-1 One Report ESG Section: What SET-Listed Companies Must Include (2026)
- IFRS S1 and S2 in Thailand: What SET-Listed Companies Must Disclose (2026)
- SET ESG Ratings Explained (2026): Criteria, Results, and the Shift to FTSE Russell
- Scope 1, 2 & 3 GHG Inventory for Thai Companies (TGO-Aligned)
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