In 2017, Boeing pressured the US government to impose a 300% tariff on imports of Bombardier C-Series planes. The situation got bad enough that Canada filed a complaint at the WTO against the US. Eventually, Bombardier subsequently sold a 50.01% stake in the plane to Boeing's main competitor, Airbus, for $1, since Airbus offered to produce it for US customers in its US assembly line in order to circumvent the tariff.
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