Tribunal finds reasonable indication Chinese truck and bus tires are hurting Canadian producers

The trade case against Chinese truck and bus tires moves to its next stage.

The Canadian International Trade Tribunal said on Oct. 30 that there is a reasonable indication that dumped and subsidized truck and bus tires from China have caused injury to the domestic industry. That finding lets the Canada Border Services Agency keep investigating.

What happens next

The CBSA now has until Nov. 30, 2026 to make preliminary decisions on dumping and subsidizing. The agency's notice says provisional duties may apply at that point.

The CBSA opened the investigations on Aug. 31 after a complaint from the Canadian Retread Manufacturers Association and Michelin North America (Canada).

Which tires are covered

The CBSA's case notice covers new or retreaded pneumatic tires for trucks and buses that fit 17.5-, 19.5-, 22.5- and 24.5-inch rims. The goods are usually classified under these tariff codes:

• 4011.20.00.13
• 4011.20.00.19
• 4012.12.00.00

The CBSA estimates the Canadian market for these tires at about $1.2 billion a year. It says the complainants, a group of retreaders and a producer of new tires, represent the majority of Canadian production.

Why fleets should watch

The CBSA says the case covers tires for medium and heavy trucks, commercial trailers, buses and RVs. If provisional duties are imposed on Chinese tires after the preliminary decisions, importers pay them at the border. Fleets buying Chinese-made casings or retreads should ask suppliers how pricing could change.

Busy year for trade cases

When it opened the case in September, the CBSA said SIMA duties applied to about $3.3 billion of imports in 2025, in industries employing 43,728 people in Canada. It had 187 measures in force. As of early September, it had launched 16 dumping and subsidy investigations covering eight products in 2026.