Canada's federal budget will include an investment of at least C$2-billion ($1.6-billion) for a strategy to accelerate the production and processing of critical minerals needed for the electric vehicle (EV) battery supply chain, two senior government sources said. Prime Minister Justin Trudeau's government, which is due to release its budget on Thursday, will make the investment to ramp up the extraction of processing of critical minerals including nickel, lithium, cobalt and magnesium, said the sources who are familiar with the matter but were not authorized to speak on the record.