Does Shenzhen Guangming Tongxin Primary School have a junior high school?

No, according to official website, the Shenzhen Municipal People's Government, Tongxin Primary School of Guangming Experimental School is located in Changzhen Community of Yutang Street, northwest of the intersection of Dongchang Road and Guangqiao Road, and is a member school of Guangming Experimental School (Group). This school is a 42-class primary school with no junior high school education. It enrolls students from Changzhen community, Jiazitang community and Tangjia community.