The ambassador said exchanges and cooperation in such fields as culture, science and technology, education and human resources had also been deepening. The two countries exchanged cultural troupes frequently and cooperated in hybrid rice planting, biological diversification and earthquake forecasting.
The national stadium in San Jose, built with the help of China, was completed in March 2011.
Song said the stadium was the most modern sports complex in Central America and a symbol of friendship between the two peoples.
The ambassador was confident about the future of the China-Costa Rica relationship.
The two countries would enjoy a brighter future for their win-win cooperation, given the joint efforts committed by both sides to exploit new ways and areas of cooperation, he said.
Kids in quake-hit Lushan mark children's day in makeshift houses