Gotion High-tech (SHE:002074) forecasted first-half attributable net profit of between 1.20 billion yuan and 1.55 billion yuan, compared with 366.7 million yuan the previous year.
The 227% to 323% jump is attributed to non-recurring gains of between 1.1 billion yuan and 1.4 billion yuan, according to a Wednesday filing with the Shenzhen bourse.
Basic earnings per share are expected to rise to 0.66 yuan to 0.85 yuan, versus 0.20 yuan last year.
Shares of the battery maker rose 5% Wednesday.