No more worries about losing paper tickets or plastic admission cards -- the first mobile phone admission system in World Expo history is bound to add a sense of high-tech culture to the Shanghai World Expo. All you will need to tour the event is your cell phone.

The new concept is based on a special type of cell phone SIM card that incorporate radio frequency identification technology (RFID). The Shanghai World Expo Bureau and China Mobile introduced the technology last month.

Users will be able to use the SIM card - which conveniently carries over their existing phone number - to check-in and even make payments in restaurants and shops at the World Expo.

These SIM card tickets are priced the same as regular paper tickets.

This week, the manufacturer of these SIM cards was revealed by a news report from the Jiangnan Evening News.

Jiangsu Changjiang Electronics Technology Co. Ltd. (JCET) of Jiangyin, Jiangsu province, said the production of 3 million World Expo SIM cards began in November and will be completed in four months. Production procedures include the installation of chips, sealing with epoxy resin, cutting, and testing.
Publicly listed JCET said it is adding equipment and improving production lines in preparation for more production of such cards, up to tens of millions, depending on market response.