Anti-Dumping Duty Up to 35% on Aluminium-Zinc Coated Steel After Kapar Producer's Petition: What It Means for Factory Roofs
MITI's provisional anti-dumping duties of 4.41% to 35.06% on aluminium-zinc coated steel from China, Taiwan and Vietnam began on 7 November after a petition by the producer in Kapar, Klang. Here is what factory owners, tenants and buyers with roof or cladding works should check.
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Key Takeaways
- From 7 November 2026, the Investment, Trade and Industry Ministry (MITI) imposed provisional anti-dumping duties of 4.41% to 35.06% on aluminium-zinc coated flat-rolled steel from China, Taiwan and Vietnam, for up to 120 days.
- The case was brought by NS BlueScope Malaysia, whose coating line sits on Jalan Bukit Kapar in Kapar, Klang. In its petition the company calls itself the sole Malaysian producer of this steel.
- The petition lists roofing, walling, hoarding, ceilings, structural building frames, shutter doors and rainwater goods among the steel's common uses, so the case touches anyone building, extending or re-roofing a factory or warehouse.
- For now the duties are secured through guarantees equal to the dumping margins. MITI expects its final determination no later than 6 March 2027.
- If you have roof or cladding works coming up, ask where the coil comes from and fix material prices in writing before you sign.
What happened
On Saturday, 7 November 2026, MITI announced provisional anti-dumping duties ranging from 4.41% to 35.06% on imports of flat-rolled products of other alloy steel and non-alloy steel, plated or coated with aluminium and zinc, originating in or exported from China, Taiwan and Vietnam. The duties took effect the same day and can run for up to 120 days, Bernama reported in Malay Mail. The Edge and The Star carried the same ministry statement.
According to the ministry, the investigation began on 17 July 2026 under the Countervailing and Anti-Dumping Duties Act 1993 (Act 504) and the 1994 regulations, after a petition by NS BlueScope Malaysia Sdn Bhd on behalf of the domestic industry. The petitioner claimed the steel was being sold into Malaysia below the prices charged in the exporters' home markets, causing material injury to local production. MITI said its preliminary determination under Section 23 of Act 504 found enough evidence to continue, and that the provisional measures take the form of anti-dumping duties secured through guarantees equivalent to the dumping margins. The final determination is due no later than 6 March 2027.
Business Today added that importers, foreign producers, exporters and trade associations may comment on the preliminary findings by 16 November 2026.
The case file
MITI's trade remedies portal lists the matter as case AD01/26, "flat rolled product of aluminium and zinc coated steel", covering 12 tariff codes under headings 7210, 7212, 7225 and 7226. The non-confidential petition describes the coating as 55% aluminium, 43.5% zinc and 1.5% silicon, the "AZ" coating that many builders simply call zincalume.
The Klang connection
The petition gives the factory address as Lot 1551, Jalan Bukit Kapar, 42200 Kapar, Selangor. The company's contact page lists that site as its coating line and names a second plant, a cold roll mill, in Kawasan Perindustrian Sungai Puloh, Klang. Both sit in the industrial belt north of Klang town, close to the Kapar and Sungai Kapar Indah industrial area.
The petition says the company is the sole domestic producer of aluminium-zinc coated flat-rolled steel, and argues that without relief Malaysia could end up fully dependent on imports for it. In other words, the duty is designed to protect production at a Kapar plant, and the cost falls on whoever imports the same steel from the three named sources.
Not the first round
The petition also recounts an earlier case. Provisional duties of 13.27% were imposed on non-alloy aluminium-zinc coated steel from China, South Korea and Vietnam from 14 August 2020, followed by final duties of up to 15.87% for five years, from 12 December 2020 to 11 December 2025. The petitioner says imports then shifted to an alloy steel tariff line that the old order did not cover: from those three countries, imports under that code rose from 18,120 tonnes in 2019 to 23,328 tonnes in 2020 and 100,967 tonnes in 2021, and stood at 74,758 tonnes in 2025. That is why the new case names the alloy steel codes as well, and adds Taiwan.
Why it matters for factories and warehouses
Metal roofing and wall cladding are standard on factories and warehouses across Klang and the rest of Selangor, and the petition's own list of end uses reads like a factory building schedule: roofing, walling, hoarding, ceilings, structural steel building frames, door frames, shutter doors and rainwater goods.
What the duty means for prices is not yet known. The ministry did not say how much the duties will add to the cost of roofing sheet, and the rate depends on the supplier. The petitioner argues the duties will not hurt downstream users and will restore "pricing discipline". Importers who buy coil from China, Taiwan or Vietnam, on the other hand, now have to put up guarantees of between 4.41% and 35.06% on those shipments while the case runs, and that cost has to land somewhere.
Timing matters too. The provisional duties run for up to 120 days from 7 November, and the final call is due by 6 March 2027. If the ministry confirms the duties, the previous order shows how long they can last: five years.
What it means for owners, tenants and buyers
If you are building or extending
Roof and wall sheeting is often priced early in a design and build contract, then bought months later. Ask your contractor or roofing subcontractor three things in writing: where the coil for your job comes from, whether the price in your quote was set before 7 November, and how long that price holds. If the contract has a material price fluctuation clause, read what it says about duties and import costs.
If you are re-roofing or repairing
Owners planning roof replacement before the rest of the monsoon season should collect fresh quotes now and note the validity date on each. Tenants should check the lease: many factory tenancies say who pays for structural and roof repairs, and that clause decides who carries any extra cost.
If you are buying
Roof condition belongs in every factory inspection. If the roof needs replacing, get a current quote before you agree the price, rather than relying on an estimate made earlier in the year. For what factories in the area change hands for, see the registered deals on our Kapar transactions page.
If you import or roll-form coil
Steel traders and roll-formers who buy from the three named sources are interested parties in the case. The comment window on the preliminary findings, as reported, closes on 16 November 2026, and your customs broker can tell you which rate applies to a particular supplier.
Practical next steps
- Ask your supplier or contractor whether your roofing and cladding steel is made in Malaysia or imported, and from where.
- Get written quotes with a clear validity date and a clear rule on duty changes.
- Note 6 March 2027 as the date by which the final decision is due.
- Build roof works into any purchase or lease negotiation now, not after handover.
- If you are weighing a different site with a newer roof, our Kapar industrial agent page shows what is available nearby.
Frequently Asked Questions
What is the new anti-dumping duty on aluminium-zinc coated steel in Malaysia?
It is a provisional duty of 4.41% to 35.06% on flat-rolled alloy and non-alloy steel coated with aluminium and zinc from China, Taiwan and Vietnam. MITI imposed it from 7 November 2026 for up to 120 days, secured through guarantees equal to the dumping margins. The final decision is due no later than 6 March 2027.
Will factory roofing cost more because of it?
The ministry has not said how prices will move, and the rate differs by supplier. The duty applies to imports from the three named sources, so roofing and cladding made from that imported coil is the part most exposed. Ask for written quotes with a fixed validity date before you commit.
Who asked for the duty, and where is its plant?
NS BlueScope Malaysia Sdn Bhd filed the petition. It gives its factory address as Lot 1551, Jalan Bukit Kapar in Kapar, Klang, and its website lists a cold roll mill in Kawasan Perindustrian Sungai Puloh, Klang. The company says it is the only Malaysian producer of this steel.
Has Malaysia put duties on this steel before?
Yes. According to the petition, duties of up to 15.87% applied to non-alloy aluminium-zinc coated steel from China, South Korea and Vietnam from 12 December 2020 to 11 December 2025. The new case adds alloy steel tariff codes and Taiwan.
What should a tenant do if the landlord plans to re-roof?
Check the lease clause on structural and roof repairs to see who pays. If the landlord is responsible, ask when the works will happen and how they will affect operations. If you are responsible, get quotes now and note how long each price is valid.
FactoryHub is dedicated to helping every client find the right factory or warehouse. If you are planning a move, an extension or a purchase in Kapar or anywhere in Klang, call or WhatsApp Peter Tan (REN 12771) on 016-666 6872 or Jason Low (PEA 1478) on 012-288 1834.
Area contact: Ms Teh Seok Hoon covers the area in more depth on the Kapar industrial property page of her own site, with its estates, roads and the rent and sale market.
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