China Construction Bank (CCB), one of the country's four leading state-owned lenders, saw a sharp increase in its green-credit business in 2009 with outstanding loans totaling 181.1 billion yuan ($26.6 billion).

In CCB's fourth social responsibility report issued Tuesday since it went public, the bank said its outstanding loans to green-credit businesses increased 17.5 percent year on year.

According to the report, CCB has made great efforts to execute the government's green-credit policy by providing loans for clean energy products, as well as those that help environmental protection and emission reductions. It has also provided loans to the eco-industry with respect to agriculture and forestry.