The leading electric-vehicle maker also drew buyers eager to take advantage of government incentives that will be harder to get in 2024.
Sales by BYD, the country’s dominant automaker, topped 3 million last year, including 1.6 million fully battery-powered cars in a sign of China’s rapid growth in EVs.
Workers seeking a collective agreement from the automaker say they are pushing for their rights, but car owners see them as taking the fight too far.
Lawmakers approved $5 billion for states to build a network of fast chargers two years ago. Although some states have made progress in recent weeks, most have not yet awarded contracts or started construction.
The announcement underscores the threat to European and U.S. automakers posed by Chinese electric-vehicle manufacturers.
The country’s trade with Russia this year has exceeded $200 billion, and makers of cars and trucks are the big winners.
Trevor Milton, who founded the truck company Nikola, will be sentenced on Monday in a fraud case that exposed the excesses in the electric vehicle business.
Purchases of popular models like the Tesla Model 3 and the Ford Mustang Mach-E may no longer entitle buyers to tax savings because the cars do not meet tougher sourcing requirements.
Federal regulators said the automaker had not done enough to make sure that drivers were paying attention while using Autopilot.
Under pressure from federal regulators, the company has agreed to recall two million cars to update its driver-assistance system. The cars will be updated over cellular networks.