The government had announced plans in 2015 to end the subsidies this year, but said in March it would extend them.

China has set a target for NEVs, which also include plug-in hybrids and hydrogen fuel cell vehicles, to account for a fifth of auto sales by 2025, compared with the current 5%, as it seeks to cut pollution and cultivate home-grown auto sector champions.

Under the new plan, China will extend subsidies for buying NEVs to 2022, and tax exemptions on purchases for two years.

However, the subsidies will apply only to passenger cars costing less than 300,000 yuan ($42,376). That is likely to exclude premium electric vehicles such as those built by Germany's BMW and Daimler.

Tesla Inc's China-made Model 3 sedans, meanwhile, are currently priced at 323,800 yuan before subsidies, meaning the U.S. electric car pioneer will have to reduce the price to qualify for the scheme.

China will in principle cut subsidies by 20% in 2021 and 30% in 2022, the finance ministry added.

But it will not reduce subsidies on commercial NEVs for public purposes this year.

China is the world's biggest car market, where more than 25 million vehicles, including 1.2 million NEVs, were sold last year.

The government will raise the requirements for the driving range and power efficiency of cars that qualify for the subsidies, the statement said.

It also said the authorities would support the sale of cars with swappable batteries, a technology that has been pursued by Chinese electric vehicle makers Nio Inc and BAIC BluePark.

In addition, when the authorities buy vehicles for government use, they will prioritise buying NEVs, it added.

The new policy is effective from April 23.

"This extending of subsidies will give the industry long term support but is unlikely to impact short term sales much," said Cui Dongshu, secretary general at China Passenger Car Association (CPCA).

Global automakers including Volkswagen, General Motors and Toyota are ramping up electric vehicle production in China to meet stricter government regulations.

Sales of NEVs contracted for a ninth month in a row in March and were down over 50% from a year earlier, according to data from the China Association of Automobile Manufacturers (CAAM), as demand for vehicles plunged due to the coronavirus crisis.

($1 = 7.0794 Chinese yuan renminbi)

By Yilei Sun and Brenda Goh