The phased progress marks a milestone in the C919 program since the batch production of the aircraft launched in 2019, the East China Regional Administration of the Civil Aviation Administration of China (CAAC) said.
The first of five homemade jetliners is expected to be delivered to China Eastern Airlines by the end of the year.
China's output of storage batteries to power new energy vehicles (NEVs) rose 161.7 percent year-on-year to reach 19.5 gigawatt-hours (GWh) in August as its NEV industry continued to boom.
The output of lithium iron phosphate batteries stood at 11.1 GWh last month, jumping 268 percent from a year ago, data from the China Automotive Battery Innovation Alliance showed.
The People's Bank of China and the China Banking and Insurance Regulatory Commission are working to ensure the crisis does not spread to the wider economy.
Four state-owned electricity companies have won approval to merge to form a new industry giant. The new company, China Power Equipment Group, will be registered in Xiong'an in North China's Hebei Province. China is the world's biggest producer of electricity.