Cast Iron Soil Pipe and Steel Wire Probes

Summary#

The Canada Border Services Agency has started a formal investigation into whether cast iron soil pipe from the People’s Republic of China is being dumped or subsidized in Canada. It also extended the preliminary phase of a separate anti‑dumping probe into certain carbon and alloy steel wire from several countries, delaying the deadline for a preliminary decision.

What it does#

• Cast iron soil pipe investigation

  • Under the Special Import Measures Act (SIMA), the CBSA initiated an investigation on July 11, 2025 into alleged injurious dumping and subsidizing of cast iron soil pipe from China.
  • The goods are normally imported under tariff classification numbers 7303.00.00.10 and 7303.00.00.90 (these codes may include non‑subject goods, and subject goods may also fall under other codes).
  • The Canadian International Trade Tribunal (CITT) will hold a preliminary inquiry and must decide within 60 days of initiation whether there is a reasonable indication of injury.
  • Interested parties can send written evidence to the CBSA; the CBSA must receive it by November 17, 2025 to be considered. A Statement of Reasons will be posted on the CBSA website within 15 days after the CITT decision.

• Carbon and alloy steel wire investigation (preliminary phase extended)

  • On July 7, 2025, the CBSA extended the preliminary phase of its investigation into alleged injurious dumping of certain carbon and alloy steel wire from multiple countries.
  • The usual preliminary period of 90 days was extended to 135 days because of the case’s complexity, the number of parties, and difficulties obtaining evidence.
  • A preliminary determination or termination for some or all goods will be made on or before September 4, 2025.

Who's affected#

• Importers and exporters who trade in cast iron soil pipe and carbon/alloy steel wire.
• Manufacturers and distributors in Canada who make or use these products (they may be the domestic industry alleging injury).
• Foreign producers and exporters from the countries named in the steel wire probe.
• Buyers in construction, plumbing, manufacturing, and related supply chains that use these products.
• The wider public only indirectly, through possible price or supply changes.

Why it matters#

• If the investigations find dumping or harmful subsidizing and injury, anti‑dumping or countervailing duties could be applied. That can raise costs for importers and possibly for Canadian businesses that buy these materials.
• Domestic producers that claim injury could gain temporary relief or protection if measures are imposed.
• The investigations are at an early stage. This is not a finding of wrongdoing yet — it is a fact‑finding step that could lead to duties or to the case being dropped.