Tianshan Aluminum's (SHE:002532) net profit attributable to shareholders for the first half soared 100% to 4.18 billion yuan from 2.08 billion yuan a year earlier, according to a Shenzhen bourse filing on Wednesday.
Earnings per share surged 102% year over year to 0.91 yuan from 0.45 yuan.
Operating revenue rose 14% to 17.5 billion yuan from 15.3 billion yuan in the previous year.
The aluminum company's shares fell nearly 2% in recent trade.