Exports decreased 2.3 percent to $41.4 billion in January, while imports dipped 0.6 percent to $39.3 billion, the agency said.
That narrowed Canada's international trade surplus to $2.1 billion from $2.9 billion in December.
"Exports to the United States edged up 0.3 percent to $30.6 billion in January, largely on the strength of crude petroleum," StatsCan said. "Imports from the United States declined 0.3 percent to $24.5 billion.
"Consequently, Canada's trade surplus with the United States increased from $5.9 billion in December to $6.1 billion in January."
Exports to countries other than the United States fell 9 percent to $10.8 billion in January, while imports from those countries decreased 0.9 percent to $14.8 billion.
"Canada's trade deficit with countries other than the United States increased from $3 billion in December to $4 billion in January," the report said.
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