The Export-Import Bank of China (China EximBank), a state-owned policy bank, underwrote 4 billion yuan (about $557.9 million) of special bonds for energy supply.

This was the first time for the bank to act as a lead underwriter for special bonds for energy supply. The issuance, by China Reform Holdings Corporation Ltd., has a maturity of five years with a coupon rate of 2.85 percent.

Funds raised will be dedicated to helping power producers under the central administration to boost energy and power supply, the bank said.

To ensure energy supply, China's State Council pledged support for the issuance of 200 billion yuan (about $27.9 billion) of special bonds at an executive meeting in late August.

Established in 1994, China EximBank is a state-funded bank that supports the country's foreign trade, investment, and international economic cooperation.