What Happened May 25
CBSA made preliminary determinations of dumping and subsidizing under the Special Import Measures Act for forged grinding media originating in or exported from China. The effective date is May 25, 2026. If you import steel grinding balls, forged steel media for mining or cement mills, or similar wear parts currently classified under 7326.11.00.00, your CAD filings and duty calculations change as of this morning.
Provisional duties are now collectible at the rates set out in the preliminary determination. That means estimated Normal Value margins and countervailing duty margins apply immediately, pending CITT injury review and CBSA final determination. If you imported a shipment last week that released under RMD or PARS with standard duty only, you're fine. Anything arriving today or later is subject.
Tariff Classification Trap
CBSA's notice lists 7326.11.00.00 as the usual classification. That heading covers forged or stamped articles of iron or steel, not further worked than forged. The problem: it's a catch-all heading that also covers non-subject goods like chain links, hooks, and dozens of other forged steel parts. The product definition in the Statement of Reasons is authoritative, not the HS number.
If your supplier ships grinding balls mixed with other forged steel components in the same container, you cannot blanket-apply provisional SIMA duty to the entire shipment. You need line-item clarity on the commercial invoice, packing list, and mill certificate. If the documentation is vague, CBSA will hold the release and ask for a detailed breakout. That delay costs you two to four working days on average, plus storage at the CFS or sufferance warehouse if you're using Montreal port facilities as your entry point.
We've seen this pattern before on subject goods cases: brokers who file the CAD with one HS line covering mixed goods trigger a compliance review, because CBSA's SIMA team cross-checks the description field against the Statement of Reasons product scope. If the description is generic ("steel parts"), the examiner flags it. Clean documentation now saves you a cargo exam later.
Provisional Duty Math and RPP Bond Impact
Provisional duties are estimates. CBSA publishes the dumping margin (usually expressed as a percentage of export price or as a dollar amount per kilogram) and the subsidy margin in the preliminary determination notice. Your broker applies those rates on the CAD, in addition to standard MFN duty and GST.
If you use Release Prior to Payment under CARM's RPP program, your bond calculation just got more expensive. The financial security formula includes duties, GST, and any SIMA amounts owing. A container of grinding media that used to require CAD 8,000 in bond coverage might now need CAD 14,000 or more, depending on the margin. If your current RPP bond is sized close to your monthly average, one or two SIMA shipments can push you over the limit and trigger a compliance hold until you top up the security.
Check your K84 monthly statement after the first SIMA release posts. If the peak single-day liability sits above 80% of your bond ceiling, you're too close. Talk to your brokerage team about resizing before CBSA's portal flags you.
Origin Documentation and Transshipment Risk
China is the named country of export. If your supplier sources grinding media through a third country (common with Hong Kong or Vietnam consolidators), CBSA will scrutinize the country of origin field on the CAD. A Vietnam export with Chinese origin still triggers SIMA duty. A Vietnam export with Vietnam origin requires proof: mill certificate, country-of-origin declaration, and ideally a signed manufacturer's affidavit.
We routinely see misclassification here. A shipper marks "Made in Vietnam" on the commercial invoice because final grinding and heat treatment happened in a Vietnamese plant, but the forged blanks came from China. That's still Chinese origin under SIMA's substantial transformation test. If CBSA catches it on verification, you're liable for the duty shortfall, interest, and an AMPS penalty under the Master Penalty Document's origin misrepresentation schedule. The penalty starts at 25% of duties owing for a first violation.
If you're not confident your supplier's origin claim is defensible, get ahead of it. File the CAD with Chinese origin and pay the provisional duty, then work with your compliance group to verify the manufacturing chain. If the origin is legitimate, you can apply for a refund after the final determination, assuming the goods are excluded or the margin drops. If the origin is weak, you avoided the AMPS hit.
CITT Injury Inquiry Timeline
The Canadian International Trade Tribunal runs a parallel injury inquiry. Preliminary determination starts the clock: CITT has 120 days from today to decide whether the dumped and subsidized imports have caused or threaten to cause material injury to the Canadian industry. If CITT finds no injury, the case closes and CBSA refunds provisional duties collected.
If CITT finds injury, CBSA moves to final determination, and the provisional duties convert to final assessed amounts. The final determination can adjust the margin up or down. If the final margin is lower than provisional, you get a refund. If it's higher, you owe the difference, and CBSA will demand payment within 30 days of the final notice.
Don't assume the case will fail at CITT. The Canadian forged grinding media producers filed the complaint, which means they already submitted evidence of price depression, lost sales, or capacity underutilization. CITT injury findings run above 70% historically when the case reaches preliminary determination stage.
What to Do This Week
Pull your last six months of import entries under 7326.11 and any related headings where grinding media might have been classified (7325.99, 8483.90 for some wear parts). Cross-check the product descriptions against the Statement of Reasons. If any past shipments match the subject goods definition but weren't flagged, you got lucky. Future shipments won't be.
Talk to your supplier about documentation quality. You need clear product descriptions, country of origin statements, and manufacturing affidavits for anything that might sit near the subject goods scope. If your supplier pushes back or says "we always ship this way," find a new supplier or accept that you'll be sitting through CBSA exams every third container.
Review your RPP bond ceiling and your average monthly SIMA exposure. If you import two containers a month at 20 tonnes each and the provisional duty is CAD 1.50 per kilogram, that's CAD 60,000 in additional monthly duty. Your bond needs to cover that, plus your other imports, plus GST. Most mid-market importers undersize their bonds because they calculate on pre-SIMA baseline duty rates. CARM's K84 will flag you when the first payment posts, but by then you've already lost a release cycle.
If this is your first SIMA case, the compliance load is higher than you expect. Provisional period can run six to nine months if CITT extends or if CBSA's final determination drags. Every CAD filed during that window carries the provisional rate, and every entry is a potential audit target if your origin or valuation documentation is weak. We run duty planning for importers in active SIMA cases weekly. The math is straightforward, but the documentation trail and bond sizing are where most compliance failures happen.
Get in touch if you need a compliance file review or bond recalculation before your next shipment clears.
Originally published at https://www.canflow-global.com/en/insights/cbsa-preliminary-dumping-and-subsidy-findings-on-forged-grinding-media-from-chin/.
