Global electric-vehicle sales grew by a quarter in May despite some regional slowdowns.

The year-over-year spike was led by China, where more than a million EVs sold for the first time after it hit that milestone in August, said London-based EV data provider Rho Motion. 

The Asian giant’s EV deliveries are up by a third year-to-date as it grows its overseas deliveries, especially in Europe. No Chinese automakers yet sell vehicles in the U.S.

Global EV sales rose 8% over April to 1.6 million units, Rho Motion said.

North American market sales, though well off the worldwide average, have still increased by 3% year-to-date, despite Canada’s pause on EV subsidies, which has curtailed sales in the Great White North by 20%, according to Rho Motion.

U.S. EV sales alone are up 4%, as its federal tax credits are still in place for now, though the Trump administration has planned a gradual phase-out. The Senate version of the pending tax bill would speed up the phase-out and axe tax credits for EV leases right away.

EV sales growth has been strong in many European countries, including the United Kingdom, Spain, Italy and Germany, the latter of which Rho Motion said will likely see growth accelerate after it recently introduced new incentives aimed at corporate fleets.

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