JETS Online Immersive Assessment
Basically, it is in the same style as HSBC's JSA...did you try it before? Best preparation ever haha
Meanwhile, as it asks you so much about your choices facing with different situations, you should prepare yourself better about your understanding of Jardine's business exposure, as well as how JETS operate for their Trainees, aka rotations and career progression. They should help to get you "into" the mode of being a JETS when answering those questions.