“Sugar” on a Canadian ingredient list always indicates sucrose of sugar beet or sugar cane origin, and “golden syrup” is likewise a strictly sugar cane-derived product. Pages 343 and 344 (i.e. Part B Division 18) of Canada's Food and Drug Regulations give the official version of this law.
The most common brand of golden syrup in eastern Canada is Lyle's. Go ahead and make butter tarts!