Return. According to official website of Tangshan Education Bureau, Tangshan Haigang Middle School is within the jurisdiction of Tangshan Education Bureau. Therefore, Tangshan Haigang Middle School belongs to Tangshan Education Bureau. Tangshan Haigang Senior High School (public) belongs to Haigang Economic Development Zone. Founded in 2004, it is a provincial key middle school in Hebei Province. The school covers an area of 140 mu, with a building area of 2 1800 square meters.