The Customs Watch UK: Edition 31

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🔐 Steel’s 50% Cliff-Edge | Chinese Glass Faces Up to 53% | Ministers Overrule the Trade Watchdog

The Customs Watch UK

Summary: UK importers face a week of significant customs and trade-policy changes, led by rapidly tightening steel quota availability, new provisional anti-dumping duties on Chinese glass packaging and an unusual government decision to reject the Trade Remedies Authority’s recommendation on US HVO biodiesel. With several measures taking effect in September and October, businesses need to understand where duty exposure, tariff relief, import VAT and trade-remedy decisions could affect landed costs and sourcing plans.

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Customs Watch UK poster with Big Ben, Union Jack, steel beams and glass bottles tagged 50% duty and 53% anti-dumping duty. — ***🇬🇧 Steel quotas are hitting the 50% duty cliff, Chinese glass faces anti-dumping duties of up to 53%, and UK trade policy is taking an unexpected turn.***

The Biggest Steel Warning Yet: The 50% Duty Cliff-Edge

UK steel importers are facing a rapidly tightening quota position as several EU and residual steel quotas approach exhaustion ahead of the 1 October 2026 reset.

One Category 12B quota has already been exhausted, meaning affected imports have moved into the higher out-of-quota duty regime. Other steel categories are now approaching the same point.

For businesses buying steel from the EU or other affected origins, this creates a potentially significant difference between securing available quota and facing a much higher landed cost.

🔐 Unlock Edition 31 + Full Steel Quota, Safeguard Duty and October Reset Analysis

Chinese Glass Packaging: Anti-Dumping Duty Reaches 53%

A new provisional UK trade remedy has introduced anti-dumping duties on certain glass containers originating from China, with the highest rate reaching almost 53%.

The measure took effect on 9 September 2026 and introduces a new cost and cash-flow consideration for businesses importing affected glass packaging.

The impact will depend on the goods, exporter and applicable treatment, making this more than simply another tariff-rate change for importers to monitor.

🔐 Unlock Edition 31 + the Chinese Glass Packaging Duty Rates, Product Scope and Import Requirements

UK Ministers Reject Trade Remedy Recommendation on US HVO

In an unusual trade-remedy development, the UK Government has rejected the Trade Remedies Authority’s recommendation to impose a definitive anti-subsidy measure on US hydrotreated vegetable oil (HVO) biodiesel.

As a result, the anticipated anti-subsidy duty will not apply, removing a potential additional cost for affected imports.

The decision is also significant beyond HVO. It demonstrates how wider economic and public-interest considerations can influence the final outcome of a UK trade-remedy case.

🔐 Unlock Edition 31 + the HVO Decision, Trade Remedy Findings and Import Implications

Overview of This Week’s Edition Changes

Topic	Why It Matters
Steel: 12B Quota Exhausted	The quota has been exhausted ahead of the quarterly reset, moving affected imports into the 50% out-of-quota duty regime. 
Steel: EU Quotas Now Critical	EU-origin merchant bars and light sections, welded tubes and coated sheets are approaching quota exhaustion, increasing the risk of the 50% duty applying before the 1 October reset.
China: Glass Packaging ADD	Provisional anti-dumping measures now affect certain Chinese glass packaging, with duties reaching up to 53% and an importer guarantee requirement.
Aircraft Parts: VAT Zero-Rate Extended	The 0% import VAT treatment is being extended to a wider range of qualifying aircraft-part products from September.
Tariff Suspensions Updated	New and withdrawn duty suspensions take effect from 1 October, creating both potential duty savings and new costs for affected imports.
CBAM: Final Rules Ahead of 2027	The UK CBAM framework is now substantially established ahead of its 1 January 2027 start, increasing the need for businesses to prepare emissions and supplier data. 
China: Wire Rod ADD Extended	Anti-dumping measures on Chinese wire rod continue through 2031, keeping the duty relevant to longer-term sourcing and landed-cost planning.
USA: HVO Biodiesel Decision	The Government rejected the proposed anti-subsidy measure on US HVO biodiesel, meaning the anticipated additional duty will not apply. The TRA had found subsidy and injury but recommended a duty that was ultimately not adopted. 
Authorised Use Relief Updated	Updated Authorised Use reference documents take effect from 1 October, potentially affecting eligibility and duty treatment for qualifying goods.
Tobacco: New Excise Rates	New tobacco excise rates are loaded onto CDS ahead of 1 October, requiring affected importers to account for the new rates.
Bhutan: DCTS Preferences Reduced	Bhutan moves from comprehensive to enhanced DCTS preferences from 14 December 2026 following the end of its LDC transition.

🔐 The key message this week

Steel is the immediate cost risk, Chinese glass is the newest trade-remedy exposure, and CBAM is the major forward-looking compliance change. The HVO decision adds another important signal: UK trade-remedy outcomes can be influenced by wider economic-interest considerations, not just the underlying injury finding.

Other Customs & Trade Developments This Week

Several additional changes deserve attention from UK customs and trade teams.

Aircraft-parts import VAT relief is being extended to a wider range of products from 20–21 September, while the UK tariff-suspension list is being refreshed from 1 October. The UK’s CBAM framework has also moved closer to implementation, with the final legal framework now in place ahead of 1 January 2027.

Meanwhile, anti-dumping duties on Chinese wire rod have been extended to 2031, Authorised Use relief is being refreshed for October, new tobacco excise rates are already loaded on CDS, and Bhutan is due to move to a lower DCTS preference tier in December.

🔐 Unlock the Full Technical Analysis

The free edition gives you the headline:

What changed. Who is affected. Why it matters.

The full Technical Analysis provides the detailed customs and trade information behind each development, including commodity codes, quota references, duty treatment, tariff-suspension changes, trade-remedy rates, declaration implications, implementation dates, relief conditions and official source material.

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Steel safeguards and quota developments
Import VAT and excise
Tariff suspensions and duty reliefs
Rules of origin and preference schemes
CBAM and other emerging border measures
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Author

Ann Karen | Head of Growth

Updated: September 14, 2026

Disclaimer

This article is provided for general informational purposes only and does not constitute legal, customs or tax advice. Businesses should seek professional advice based on their individual trading arrangements and compliance obligations.

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