DUSSELDORF, Germany, Nov.13 (Xinhuanet) -- Chinese President Hu Jintao concluded his three-day visit to Germany Sunday, and left the German city of Dusseldorf for Madrid for a state visit to Spain.

During his visit to Germany, the first as a China's head of state, Hu exchanged views with German leaders over bilateral relations and major international and regional issues of common interest. The two sides agreed to expand all-round cooperation between the two countries in the new century.

China and Germany signed a series of cooperation documents during Hu's visit to the European country.

The Chinese president had a wide range of contact with German celebrities from political, business, educational and other sectors.

The Chinese president flew in from Berlin Saturday for a tour of Dusseldorf.

In recent years, China-Germany relations have developed soundly. The two countries have maintained exchanges of high-level visits, and political mutual trust has been strengthened constantly. The two nations have kept close consultations on major international issues.

Germany is China's largest trade partner in Europe while China is Germany's largest trade partner in Asia. In 2004, trade between the two countries recorded at 54.1 billion US dollars, a 29 percent increase over the previous year. By the end of last year, Germany's direct investment in China reached 9.9 billion dollars.

The Chinese president will also visit South Korea. He already paid a state visit to Britain. Hu will attend the Economic Leaders' Meeting scheduled for Nov. 18-19 in Busin, South Korea.