The conclusion is reached against four indexes including perceived leadership, market share, profitability and the ability of financing growth.

The report indicates that five companies have maintained sustainable growth. They are, according to the ranking, First Solar, Trina Solar, Suntech, Sunpower and REC.

In 2009 Trina achieved a total net revenue of US$845.1 million, an increase of 1.6% from 2008, and gross profit of US$237.2 million, a jump of 44.2% from 2008, and gross margin of 28.1%, compared to 19.8% in 2008.

PRTM is an internationally influential and well-known management consulting company. Since its founding in 1976, PRTM has helped market leaders define new and innovative ways of operating globally. Each of its 19 branch offices is staffed with experts in supply chain management, product development and customer value management, among others.