Why did Jiang Shuying give Tony Leung Chiu Wai information?

The above situation is the plot of the unknown film. Does Jiang Shuying know that Tony Leung Chiu Wai is the undercover of the Chinese Communist Party, or does he want to use this information to make a deal with Tony Leung Chiu Wai to save his life?

The Unknown is a spy film produced by Bona Film, starring Tony Leung Chiu Wai and Yibo, starring Zhou Xun and Huang Lei, and starring Mori Yoshiro, Dapeng, Eric Wang, Jiang Shuying and Zhang Jingyi. It is written and directed by Cheng Er. It was released in Chinese mainland on June 22nd, 2023.