9: 30. The Gemini Hengtai City is a key investment and development project of Zaozhuang Municipal Government. It is jointly built by Lunan Company and Hengtai Commercial Company, with a total area of 370,000 square meters and a commercial area of 1.300 square meters. According to relevant information, Gemini opens at 9: 30 in the morning. Zaozhuang, a prefecture-level city in Shandong Province, is an important modern coal chemical, energy, building materials and machinery manufacturing base in Shandong Province, an emerging scientific and technological innovation base and one of the central cities in southern Shandong Province.