Shanghai will host the 2010 edition of the World Expo with the theme "Better City, Better Life" focusing on sustainable urban development.

Miliband inaugurated the $37.9 million U.S. dollars pavilion at the Shanghai Expo by pushing in the final, the 60,000th, acrylic pole into the structure during a brief ceremony.

The UK pavilion is dubbed the "Seed cathedral" with a structure based on 60,000 acrylic poles enclosed with different kinds of seeds.

The foreign secretary said he was impressed with the pavilion and was confident it would be able to show off the uniqueness of British culture to its visitors.