BEIJING — China's major dairy producers registered robust growth in output last year, official data shows.

In 2021, major dairy producers saw their output rise 9.4 percent year-on-year to nearly 30.32 million metric tons, according to data from the Ministry of Industry and Information Technology.

In December alone, dairy production stood at 2.81 million tons, increasing by 11.8 percent year-on-year, the figures show.

Major dairy producers are companies with annual revenue of more than $20 million yuan.