China's postal industry registered faster growth in revenue and business volume for the first quarter of 2021, official data showed. 

From January to March, the sector's business revenue totaled 297.07 billion yuan (about $45.5 billion), up 35.5 percent year on year, according to a statement released by the State Post Bureau. 

Business volume jumped by 50.3 percent from the same period last year to 302.92 billion yuan in Q1, the statement said. 

In March alone, the sector's business revenue and volume gained 21.1 percent and 36.3 percent, respectively. 

China's express delivery firms handled 21.93 billion parcels in Q1, surging 75 percent from a year earlier. 

The business revenue achieved by express delivery firms during the period reached 223.77 billion yuan, up 45.9 percent year on year, the statement said.