This question can kill every candidate.
How you expect fresh graduates to know this? A big majority of people working in the equity business don't even know the answer.
Here is where I like to criticize Malaysian exam training method. When in school my teachers taught me. If you don't know the answer try to bullshit your way through. If you write something at least you get some points. I am sure you were also trained that way. Thus the silly assumption that the longer you talk in interview the better your chances.
This question give interviewers a good laugh at the "kuat terberang" and "pakai tembak" type answers. If you are funny enough they will even talk about you during lunch (hey, don't get it wrong: this is being famous/remembered for the wrong reason).
Come now I teach you how to use some brains to "tembak" the question.
1) This is likely regulated by law.
So can just "bantai" only, The Securities Act had stipulated guidelines for these.
2) Surely, there must be an approving authority. If not FM who else, "tembak" again.
Companies that made the requirement will need the approval of the Finance Minister before they get listed on the BSKL.

The accurate answer
1) The Business Rules of BSKL had listed guideline for listing into their exchange.
2) The Securities Commission will be the regulating body that approves such application for listing in the BSKL.

The "tembak" answers I gave you is good enough already. Like I said most people in the equity business also can't give that answer. If you want to do more list some of the requirements like must have a profit of 5 million for the past 5 years. More of this you can find in BSKL site.

By the way the "tembak" with brains is not wrong.
1) The Securities Act endorse the existence of the BSKL Business Rules. Without The Securities Act, the Business Rules is not enforceable.
2) Ultimately the Finance Minister have the final say because the Securities Commission is under the purview of the Finance Minister. But the Finance Minister had more important stuff like the nation's economy to handle than to look into one company listing into the exchange. It still requires FM's signature before a company can be listed. Basically if the Securities Commission approve the FM will just sign.

Wah! So detail explanation. I'm curious y u not being chosen instead of me. I act know nothing about those BSKL or what so ever.

Something you don't seem to understand.
I told you I am in equity right. BSKL = Bursa Saham KL. Equity = Saham. I am in the same industry that is why I know the answer.
I also told you when I was a fresh graduate many years ago that was my dream job. That was long ago. It is not my dream job now. I did not apply how to be chosen.
By the way not many engineering students will take the trouble to know BSKL stuff. It wont be that bad since most candidate for the interview were engineering boys. For that matter even if they take finance students, I think they will not get the answer. Finance books don't cover how to list in BSKL or NYSE.
SO unless you "terberang" until you made a fool out of yourself, you still have a chance for the job. If nobody comes close to the answer, they should he selecting the one with highest GPA.

LOL   Highest CGPA -------> GG for me 

Government (semi government) sector is like that.

Then, How about the marks in the group discussion and test?

You did not tell me there is a written test and group discussion.
In that case highest score in their test had the best chances.
For group discussion they looking at your team spirit (you team player or "bolot")
Unless there is a facilitator for each group to monitor and record everything.

Ohh,,, I dunno to tell whether can get or not... But I really to get that job act. Government more benefits and opportunities.

Its good to ask for feedback especially after every interview. It shows that you might want to learn where your mistakes are and that you are open for criticism. This trait is quite sought after especially in consultancy firms where they like the candidates to ask a lot of questions and always ask for feedback.

LOL I remember my last interview I went, I asked super a lot of question and ended up spending 30minutes interviewing my interviewer instead 

If you are curious, I got the job 

I did the same, and the interviewer were asking me again, "Are you interviewing me?"

Learn to sense the situation. Not all interviewers are the same nor the interviews themselves the same.

does anyone know how long it takes for one to be offered a job after the final interview @ huawei tech WA

one week should suffice.

1 week a??

For final interview there are maybe only 3 choices. So, it does not take that long to make a decision. If it a high post then can take months because they need to wait for their Taiwan boss come to Malaysia.

3 choices mean 3 candidates??

yes.

Then less chance a??