BEIJING -- China's electronic information manufacturing sector maintained its stable expansion in the first four months of 2021, according to the Ministry of Industry and Information Technology (MIIT).

The added value of electronic information manufacturers with annual operating revenues of at least 20 million yuan (about $3.11 million) jumped 24.2 percent from the same period a year earlier.

The export delivery value of major enterprises in the sector rose 25.6 percent year-on-year in the January-April period, while fixed-asset investment into the sector surged 30.8 percent from a year earlier.

MIIT data also shows that the operating revenue of major electronic information manufacturers soared 39.6 percent year-on-year to nearly 3 trillion yuan in the first three months, while combined profits in the period totaled 138.4 billion yuan, 2.4 times the 2020 level.