Reuters reports that data from the China Association of Automobile Manufacturers (CAAM) showed that auto sales in China, the world’s biggest market, surged in January with a 30% jump from the same month a year earlier, the tenth month of gains.

Sales reached 2.5 million vehicles in January, data showed.

Sales of new energy vehicles (NEVs), including battery-powered electric vehicles, plug-in petrol-electric hybrids and hydrogen fuel-cell vehicles, increased 239% in January to 179,000 units.

NEV makers are expanding manufacturing capacity in China where the government has promoted greener vehicles to reduce air pollution.