Highpower International, Inc. provides unaudited earnings guidance for the second quarter and first half of 2017. For the quarter, the company expected net sales is estimated to be in the range of $50.0 million to $52.0 million, a 36% to 42% increase from $36.7 million in the same quarter of 2016. Gross profit is estimated to be in the range of $11.0 million to $12.0 million, a 44% to 58% increase from $7.6 million in the second quarter of 2016. Net income is estimated to be in the $3.5 million to $4.1 million range, a 66% to 95% increase from $2.1 million in the same quarter of 2016. For the first half of 2017, the company expected net sales are estimated to be in the range of $92.0 million to $94.0 million, a 39% to 43% increase from $65.8 million in the same time period last year. Gross profit is estimated to be in the $21 million to $22 million range, compared to $13.5 million in the first half of 2016, a 55% to 63% increase. Net income is estimated to be in the $6.0 million to $6.6 million range, a 250% to 288% increase from $1.7 million in the same period of 2016.