On 21 September 2026, the Trade Remedies Authority said it had closed subsidy investigation AS0079 into creamy/white limestone from Portugal. The authority’s published position was clear: it did not find evidence that the imported goods benefited from a countervailable subsidy, so the case was terminated. (gov.uk) The product in scope was creamy/white limestone supplied as slab and finished stone, a natural material used in heritage restoration, higher-specification architectural work and premium commercial projects. (gov.uk)
The investigation opened on 14 January 2026 after a UK producer alleged that support from the Portuguese state was distorting competition and injuring the domestic industry. The TRA public file identifies Albion Stone plc as the applicant. (public-file.trade-remedies.service.gov.uk) According to the GOV.UK notice, the application referred to four alleged subsidy programmes, including grants, non-refundable financing and funded payments for the stone sector. The claim was that this support allowed Portuguese producers to invest in more efficient machinery and improve their position in export markets. (gov.uk)
What closed the case was not a finding that no public support existed anywhere in the Portuguese stone industry. The TRA said some programmes and projects had received subsidies and that some recipients had obtained a financial advantage. The decisive point was narrower: the evidence did not establish the full legal conditions required for a subsidy to be treated as countervailable against the goods under investigation. (gov.uk) In its published guidance, the TRA says a subsidy is countervailable only where it is specific to certain companies, industries or regions, rather than general, and where it is granted directly or indirectly for the manufacture, production, export or transport of goods. The same guidance also sets out that the authority must identify the amount of subsidy attributable to the subsidised imports during the period under examination. (gov.uk)
In this case, the authority said the evidence did not prove one or more of the required elements: an executed payment or other financial contribution to the identified recipient, a benefit attributable during the period of investigation to a producer or overseas exporter of the goods concerned, specificity, or a combination of those elements. That is a technical threshold, but it is where subsidy cases are decided. (gov.uk) For policy readers, the distinction matters. WTO-based trade remedies rules do not permit the UK to impose a countervailing measure simply because some form of aid has existed. The evidence has to connect that aid, in a legally usable way, to the investigated goods and to the relevant period. (gov.uk)
The scope of the investigation was tightly defined. The goods were creamy/white limestone originating in Portugal in slab form and as finished stone ready for installation. The period of investigation ran from 1 January 2025 to 31 December 2025, while the injury period covered 1 January 2022 to 31 December 2025. (public-file.trade-remedies.service.gov.uk) Those dates are more than procedural detail. The TRA’s own methodology requires it to test whether any benefit can be attributed to the period under review, rather than relying on a general view that overseas producers may have been helped at some point. (gov.uk)
In practical terms, the closure means this investigation does not produce a countervailing duty on imports covered by AS0079. That is an inference from the published termination notice and from the TRA’s guidance, which presents countervailing measures as the remedy available only where a countervailable subsidy has been established. (public-file.trade-remedies.service.gov.uk) For UK producers considering similar complaints, the case is a reminder that evidence of sector support on its own is not enough. A file still has to show a traceable financial contribution, a measurable benefit to the relevant producer or exporter, and the required specificity under the UK and WTO tests. (gov.uk)
More broadly, the decision is a useful illustration of how the UK trade remedies regime separates foreign industrial support from countervailable subsidisation in law. GOV.UK guidance places subsidy investigations within Schedule 4 to the Taxation (Cross-border Trade) Act 2018, regulations 19 to 26 of the Trade Remedies (Dumping and Subsidisation) (EU Exit) Regulations 2019, and the WTO Agreement on Subsidies and Countervailing Measures. (gov.uk) Seen in that context, the Portugal limestone case is less about a single stone product than about evidential discipline in trade law. The TRA did not say the allegations were irrelevant; it said the statutory and WTO tests for a countervailable subsidy were not met on the evidence before it, and that is why the investigation was closed on 21 September 2026. (gov.uk)