Yingli Green Energy and Trina Solar hit back after a lobbying group called EU Prosun – led by German PV giant SolarWorld – revealed yesterday that it has filed a complaint with the European Commission (EC) over the issue.

The European manufacturers single out alleged preferential rates of finance available from Chinese banks.

But Yingli says: "As a publicly-traded company listed on the New York Stock Exchange, we have been fully transparent with our funding sources and cost.

"We