The total assets of China's 423 major state-owned enterprises increased by 14.7 percent from the same time last year to 16.41 trillion yuan at the end of June, said the State-owned Assets Supervision and Administration Commission (SASAC) on Friday.

The rate of value-sustained and value-added state-owned assets for the SOEs, an index to evaluate the management of SOEs in preserving state-owned capital, reached 116.6 percent, up two percentage points from the same time last year. Industries such as non-ferrous metals, automobile, construction materials and transportation recorded even better performance.

According to the SASAC, the country's 423 major state-owned enterprises earned 555.85 billion yuan (about 73.1 billion U.S. dollars) of profits in the first half year.

The total export volume of the 423 major state-owned enterprises from January to June increased by 17.4 percent from the same period last year to 290.82 billion yuan (about 38.3 billion U.S. dollars), but the growth speed slowed down by 14.8 percent in the same period last year, according to the SASAC.