JA Solar Holdings Co., Ltd. (ADR) (NASDAQ:JASO) is engaged in the business of designing, developing, manufacturing and selling solar cell and solar module products. The Company is also engaged in the manufacturing and sales of solar cells. JA Solar Holdings witnessed volume of 25.19 million shares during last trade however it holds an average trading capacity of 7.21 million shares.

JA Solar Holdings Co., Ltd. (ADR) (NASDAQ:JASO) is engaged in the business of designing, developing, manufacturing and selling solar cell and solar module products. The Company is also engaged in the manufacturing and sales of solar cells. JA Solar Holdings witnessed volume of 16.27 million shares during last trade however it holds an average trading capacity of 3.61 million shares.

Tutor Perini Corporation (TPC) reported that it has acquired one of New York’s largest providers of Electrical and Mechanical services and systems, GreenStar Services Corporation, which has a current backlog of approximately $1.2 billion dollars and posted revenues in fiscal year 2010 of approximately $560 million dollars.