[2] The pillar industries engaged in the zone include electronics, household electric appliances, building materials, petrochemicals, machinery and pharmaceutical drugs.

In 1992, with the approval of the Shandong Provincial Party Committee and Government, the total area of Qingdao Economic and Technological Development Zone and Huangdao District was expanded to 217.33 square kilometers after the integration of the two district systems.

In 2004, the original renovation system of Hongshiya Town in Jiaonan City was transferred to Huangdao District, and the area was further expanded to 274.1 square kilometers.

It connects the two cities and operates 8 tunnel buses, making the transportation between Qingdao and Huangdao more convenient.

The coastal high-speed railway from Qingdao to Lianyungang to Shanghai will be opened and constructed, passing through Huangdao District.