Key takeaway
What This Development Means
The Canadian International Trade Tribunal has found that dumped and subsidised forged grinding media from China threaten injury to Canadian production, although they have not caused current injury. Canada Border Services Agency duties now apply to subject imports. Mining supply chains should verify product dimensions, origin, exporter-specific normal values and documentation before shipment.
Did the tribunal find that Chinese imports had already injured Canada?
No. The tribunal found no current injury but concluded that the dumped and subsidised goods threaten injury. That future-looking finding is legally sufficient for anti-dumping and countervailing measures to apply to covered imports after the finding.
Is the 94.7% dumping margin the duty on every shipment?
No. It is the final margin for all other exporters, not a universal shipment rate. Actual duty depends on the export price, applicable normal value and exporter status. Importers should obtain current exporter-specific information before calculating landed cost.
Source basis: Canadian International Trade Tribunal finding NQ-2026-002
Canada Forged Grinding Media Duties Follow Threat Finding
Canada forged grinding media duties have taken effect after the Canadian International Trade Tribunal found on 22 September 2026 that dumped and subsidised imports from China threaten injury to Canadian producers. The tribunal did not find that the goods had already caused injury. Its binding finding nevertheless satisfies the injury requirement for trade-remedy measures.
The goods are forged or stamped steel grinding media in spherical or ovoid ball form, with a nominal diameter from 25 millimetres, or one inch, to 160 millimetres, or 6.25 inches, inclusive. They must be produced through forging or stamping and originate in or be exported from China. Customs tariff item 7326.11.00.00 is indicative; the detailed product definition determines coverage.
The measures affect inputs used to crush and grind ore in mining and mineral-processing operations. Importers, distributors and end users therefore need to distinguish subject forged or stamped balls from other grinding media and confirm the producer and export route.
Final Margins Do Not Automatically Equal Future Duty
The Canada Border Services Agency made its final dumping and subsidy determinations on 24 August 2026. Its current measures record shows final dumping margins ranging from 36.4% to 64.9% for named exporters, with 94.7% for all other exporters. Final subsidy amounts for named exporters range from 1.5% to 2.4%, while the all-other rate is 12.9%.
The subsidy investigation was terminated for Jiangyin Xingcheng Magotteaux Steel Balls Co., Ltd. and Tangshan ZWell Equipment Manufacturing Co., Ltd., but their dumping determinations remain. That distinction matters when calculating the measures applicable to individual shipments.
The final-determination percentages should not be treated as a universal customs tariff. Future anti-dumping duty is generally based on the amount by which the export price falls below the applicable normal value, while countervailing duty reflects the applicable subsidy amount. Importers should obtain current normal values and subsidy information from exporters and confirm treatment with the agency.
The tribunal will publish detailed reasons by 7 October 2026. Those reasons may clarify its analysis of likely import volumes, price effects and the vulnerability of Canadian production, but they will not postpone the finding or the collection of duties.
Implications For Mining Supply Chains
Canadian importers should review purchase orders, mill certificates, dimensions, production method, country of origin and exporter identity before entry. Mining companies buying through distributors should request evidence that duties were correctly assessed because an apparently competitive price may embed customs risk.
A threat finding can alter costs even without evidence of present injury. Procurement models based only on historic landed prices may understate exposure, particularly where a supplier lacks an exporter-specific normal value and falls into the all-other category.
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