The leader of Canada’s most populous province called on Prime Minister Justin Trudeau to impose tariffs on Chinese imports, including at least a 100% levy on electric vehicles, to mirror the Biden administration’s policy.

Ontario Premier Doug Ford accused China of taking advantage of low labor standards and dirty energy and flooding the market with cheap EVs. “Unless we act fast, we risk Ontario and Canadian jobs,” Ford said in a statement on the social media platform X.

Ontario represents about 40% of Canada’s economy and is the heartland of its automotive and manufacturing industries. General Motors Co., Ford Motor Co., Toyota Motor Corp. and other major automakers all have assembly plants in the southern part of the province, making cars and light trucks primarily for export to the US. 

Last month, the White House announced sweeping tariff hikes on Chinese goods, including quadrupling tariffs on Chinese electric vehicles to bring the rate to 102.5%. Canada imposes only a small tariff of about 6% on Chinese-made vehicles, but they’re still a relatively small part of the market. 

Trudeau and other Canadian officials have said they’re monitoring the US-China trade battle, but have not committed to following Biden’s lead. The European Union last week announced additional tariffs on electric cars shipped from China — making Canada appear more isolated on the issue. 

The Ontario premier said that over the past four years, Ontario has secured C$43 billion ($31.4 billion) worth of investments in electric vehicle and battery manufacturing. Some of those investments have been lured by promises of billions in public money to match incentives in the US Inflation Reduction Act. 

“We can never take our progress for granted,” Ford said in his post Thursday. “Now’s the time to work with our US partners to deepen and strengthen homegrown, US-Canada supply chains.”