TORONTO (Reuters) - Canada is preparing a list of potential US retaliatory tariffs and some of those could be on critical minerals, Energy and Natural Resources Minister Jonathan Wilkinson said on Thursday.

Wilkinson said that Canada was looking at points of leverage that will create maximum pressure on the United States to come to table to find a resolution to the tariff issue.

Canada could impose countermeasures on up to C$150 billion ($105 billion), a source familiar with the matter said on Wednesday.