Preliminary Duties on Cast Iron Soil Pipe

Summary#

• On October 9, 2025, the Canada Border Services Agency (CBSA) made preliminary findings that cast iron soil pipe imported from the People’s Republic of China was being dumped and subsidized under the Special Import Measures Act.
• That triggers provisional duties on those goods and starts a full injury inquiry by the Canadian International Trade Tribunal, which must issue an order or finding within 120 days after it receives the notice. A written Statement of Reasons will follow within 15 days.

What it does#

• Starts a CBSA investigation that says there is preliminary evidence of dumping and subsidizing of cast iron soil pipe from the People’s Republic of China.
• Imposes provisional duties on subject shipments released from CBSA custody beginning October 9, 2025, until the investigation ends, the Tribunal makes its decision, or an undertaking is accepted.
• Says provisional duties charged will not exceed the estimated dumping margin plus the estimated subsidy amount.
• Makes the Customs Act rules apply for accounting and payment of those provisional duties (late payment may trigger interest under the Customs Act).
• Points importers and others to the CBSA web page for the exact product description and applicable tariff codes.

Who's affected#

• Importers and brokers who bring cast iron soil pipe into Canada from the People’s Republic of China.
• Canadian companies that buy, distribute, or install cast iron soil pipe (construction suppliers, plumbers, contractors) may see higher costs or delays.
• Domestic producers of cast iron soil pipe (they may seek protection if injury is found).
• The notice does not list tariff numbers in the text; the CBSA web page has the detailed product and code information.

Why it matters#

• Importers may need to pay provisional duties on affected shipments or face interest if payments are late, which can raise costs or complicate cash flow.
• Buyers further down the chain — wholesalers, builders, and contractors — could face price increases or supply disruption if duties or restrictions remain.
• If the Tribunal later finds injury, long-term duties or other measures could be imposed to protect Canadian producers.
• If you deal with this product, check the CBSA’s Dumping and subsidy investigations page for the exact product details and follow developments in the Tribunal inquiry.