As you will see from looking back over the Maun forums, the bizarre world of work permits in Maun goes in unpredictable waves. There was a very deep trough in recent months, so many companies introduced arbitrary hour minimas in a bid to increase the chances of their prospective candidates successfully acquiring work permits. It has now become common for companies to ask for 500, 800 or even 1000 hours.
In the last month or so, we seem to have been climbing out of the aforementioned trough, as more work permits have been issued, but the problem still remains that there is no clear guidance from the Ministry of Labour & Home Affairs. If they do have defined requirements or a set quota of permits, then they don't make these known publicly and it all seems to change regularly anyway so the whole thing remains a bit of a lottery.