China International Import Expo was held in March (29 to 31 ) for three days , hosted by China chamber of international commerce and Jiangsu Provincial Peoples Government .
The First exhibition of educational technology and product was held in Mosalla in April 2012 for a week . The Opening ceremony began at 10 Saturday morning , April 26 attended by deputy minister education Hojat .al.Eslam Mohamadian and some of officials in Tehran .