EVE Energy (SHE:300014) posted first-half attributable net profit of 3.30 billion yuan, up 106% from 1.61 billion yuan the previous year.
Earnings per share rose to 1.55 yuan from 0.74 yuan, according to Thursday filings with the Shanghai bourse.
Operating revenue climbed 62% year over year to 45.7 billion yuan from 28.2 billion yuan.
The battery manufacturer declared an interim dividend of 2.30 yuan per 10 shares.