What do you mean demand list as there is no real job demand list if thats what you mean. There are job role classifications that determine how many points you might get and there is a job bank listing but other than that you need to assess jobs available on various employment sites such as indeed or monster.
http://www.cic.gc.ca/english/immigrate/skilled/noc.asp
https://www.jobbank.gc.ca/home-eng.do?lang=eng
For purposes of applying for permanent residency in Canada through the Express Entry programme, there is no 'demand list'. Have you read up on exactly what the Express Entry programme is, and what the eligibility requirements are? Please see below:
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Please visit Immigration, Refugees and Citizenship Canada (IRCC)'s website and start reading up about obtaining Canadian Permanent Residency (PR):
http://www.cic.gc.ca/english/immigrate/skilled/index.asp
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The Express Entry Programme (and Eligibility)
Express Entry is an umbrella programme under which three of Canada's PR programmes fall -
the Federal Skilled Workers (FSW), Canadian Experience Class (CEC), and Federal Skilled Trades (FST) programmes. EE allows eligible applicants to apply for consideration of PR, through an entirely electronic process.
To start, however, the first thing you shoul do regarding pursuing permanent residency through the Express Entry programme is check your eligibility for
Express Entry (EE).
Unless you have Canadian work experience, you would most likely be trying to apply under the FSW programme.
If you're eligible, you need to calculate your projected
Comprehensive Ranking System (CRS) Score. The CRS Score is what IRCC uses to determine which applicants will get an
Invitation to Apply (ITA) for permanent residency.
The general consensus is that, at least right now, you need a CRS score of at least 435 to have a chance at getting an ITA; but please note that this could change in the future as the 'cut-off' CRS Score in Draws fluctuates.
If you are eligible under FSW or CEC, AND if your projected CRS Score is high enough to give you a strong likelihood of receiving an ITA, you will need to submit an EE profile to be considered for an Invitation.
Please note that submitting an EE profile is not the same as submitting an application to IRCC for PR. It's just an 'expression of interest'.
Once you submit your EE profile, the wait is on for the next 'Draw', to see if your CRS Score is above the 'cut-off' which would mean you would get an ITA. 'Draws' occur roughly every 2 or 3 weeks, usually on Wednesdays, and the results of the draw are posted to IRCC's website, but you'll also get a notification in your myCIC account (more on this later), and an email, if you receive an ITA.
If you get an ITA, choose to accept it, and subsequently submit an electronic application for permanent residency (eAPR), THIS is when you have applied to IRCC for PR.