Merged. Jiugan Road Primary School in Songjiang District, Shanghai was established in August, 2009. How did Jiugan Road Primary School become a branch of Sijing Experimental Primary School? In order to improve the teaching quality, the Education Bureau decided to merge the two schools. Shanghai Songjiang Sijing Experimental School is a nine-year compulsory education school run by Songjiang District People's Government. It is a school with high standards and a high starting point. study