Yingli Green Energy Holding Co.'s (YGE) fiscal second-quarter earnings soared 72% as the company benefited from better-than-expected revenue and strong sales of a key product.

The Chinese solar-products maker had recently seen a slowdown in demand from
Europe , the industry's primary market, yet Friday the company said it had witnessed a reemergence in European demand during the quarter.

"During Intersolar Europe in June, we saw the sign of demand recovery triggered by the drop of module price," Chief Executive Liansheng Miao said.

For the quarter ended June 30, Yingli reported a profit of CNY375.6 million ($58.1 million), or CNY2.34 (36 cents) an American depositary share, up from CNY217.8 million, or CNY1.41 an ADS, a year earlier. Adjusted earnings were CNY2.21 (34 cents), compared with CNY1.69 a year ago.

Revenue climbed 63% to CNY4.4 billion ($680.6 million). Analysts polled by Thomson Reuters expected earnings of 28 cents a share on revenue of $616 million.

Gross margin slid to 22.1% from 33.5% a year ago.

Sales of photovoltaic modules, the largest top-line contributor, jumped 62%.

ADS closed Thursday at $5.63 and were inactive premarket. They are down 43% since the start of the year.