China and Nigeria issued a joint communique Friday in Beijing saying that "Nigeria supports China's efforts to reunify the nation, including the formulation of the Anti-Secession Law."

The communique was issued after Chinese President Hu Jintao held talks with Nigerian President Olusegun Obasanjo in Beijing, who is paying a four-day state visit to China.

The communique says the two countries pledged to support each other on issues relating to sovereignty and territorial integrity.

Nigeria reaffirms that "there is only one China in the world". The Chinese government is "the only legitimate government representing the whole China and Taiwan is an inalienable part of China's territory," the communique says.

It also says China "expresses its appreciation" for Nigeria's position.

In the communique, the two countries expressed satisfaction with the achievements in their close cooperation in various fields since the establishment of diplomatic relations and indicated their readiness to strengthen mutual understanding and friendship through high-level exchange of visits and people-to-people contacts.

Economic cooperation is also emphasized in the communique. Both countries shared the view that China and Nigeria, highly complementary in economy, enjoy immense potential and broad prospects of cooperation.

They expressed readiness to cement cooperation in areas including trade, technology transfer, investment, Energy, railway, communications and manufacturing so as to achieve mutually beneficial and "win-win" results and common development.

The two sides have decided to set up an investment cooperation working group within the framework of their Joint Economic and trade Commission to facilitate both enterprises.

Obasanjo is now paying a state visit to China in the dual-capacity of Nigerian president and rotating president of the African Union.