Chinese foreign trade enterprises may face surging pressure in the second half of this year.

"There is no shortage of supplies. The price surge is not an exact reflection of the current supply and demand situation," said an analyst.

The 2109 ferrosilicon contract price on ZCE closed at 8286 yuan per ton on May 12.

The 2109 ferrosilicon contract price on ZCE closed at 7,802 yuan per ton on May 11.

The change in the environment has also improved the quality of local people's lives.

The 2109 ferrosilicon contract price on ZCE closed at 7,904 yuan per ton on May 10.

Sales revenues of the enterprises reached 1.54 trillion yuan, up 52.28 percent compared with a year ago, showed the data.

Export tariffs on ferrosilicon, ferrochrome, and high-purity pig iron would be raised to 25 percent, 20 percent, and 15 percent, respectively.