He also offered to leave a phone number with the reporter, claiming he could obtain tickets every day.
Tickets to the China Pavilion are also being traded on the Internet for up to 350 yuan each, said the report.
The online seller also claimed to be working for tourism agencies.
Organizers plan to keep the China Pavilion open after the Expo ends on Oct 31 to allow more people to visit. Visitors can also tour the China Pavilion and other structures online at www.expo.cn.
Editor: Feng Hui