Can I go up to Kempinski Executive Lounge in Nanjing?

The hotel doesn't stipulate that customers on other floors can't enter and leave the executive lounge. As long as they check in, they can enter and leave the lounge indefinitely during the opening hours.

Nanjing, referred to as Jinling and Jiankang for short, is a prefecture-level city, provincial capital, sub-provincial city, megacity and core city of Nanjing metropolitan area under the jurisdiction of Jiangsu Province. It is also an important central city, an important scientific research and education base and a comprehensive transportation hub in eastern China approved by the State Council.