RE:Rights offering ...confusedRights offering allows you to buy common shares at 6 cents.
For each share you buy you get one warrant for free.
This free warrant allows you (so you decide if you want to exercise the warrant or not) to buy a common share at 20 cents.
Obviously, warrant gets only interesting when stockprice of MMS is higher than 20 cents. You can exercise the warrant in the next 12 months after purchasing your unit at 6 cents/unit.
However, if the stockprice of MMS is 20 cents or higher at any moment after 12 december 2017 for a period of 20 consecutive trading days MMS may accelerate the expire date of the warrants, meaning MMS will give notice to the holders and warrants will expire on the 20th day after the date on which the notice was given.
So in theory, if the stockprice of MMS is 20 cents or higher from 12 december and beyond than, warrants could expire already at the end of January 2018.