Well, of course they are.
The region now called Canada was colonized strictly for resource extraction, most exemplified by the Hudson's Bay Company and the Northwest Company, both still in operation. (HBC, NWC)
That heritage leads to, among other things, a normalization of foreign ownership of resource extraction companies and a preference for exporting raw materials instead of building out our own manufacturing sector. It also makes it almost impossible to have a reasonable discussion that might lead to effective controls on any extractive industry.