Wang Jinzhen, Vice President of CCPIT and member of the organizing committee of Expo 2010, talks with American visitors.

A worker adds the US nameplate and national flag onto the wall of participants.

American visitors pose before the nameplate of the US.

Yao Rui, Deputy Director of the Liaison Office of the National Organizing Committee of Expo 2010, place the national flag of the United States into the participants’ national flags.

The United States finally confirmed its participation in the 2010 World Expo Shanghai with a signing ceremony in Pudong New Area yesterday, becoming the 192nd country and 240th confirmed participant to the Expo 2010.

Vice President of China Council For The Promotion Of International Trade (CCPIT) and member of the organizing committee of Expo 2010 Wang Jinzhen and Deputy Director of the Liaison Office of the National Organizing Committee of Expo 2010 Yao Rui brought the nameplate and national flag of the US to the World Expo 2010 Exhibition at the Capital Museum in Beijing yesterday afternoon.