Australia's only silicon producer exits US market over new tariffs
Simcoa, Australia's only silicon producer, said it will exit the US market entirely next week after Washington imposed additional tariffs on its exports. The Australian federal government said the move does not undermine the broader critical minerals agreement between the two countries. The company said the tariffs had made its US sales margins unsustainable.

Simcoa, Australia's only silicon producer, announced it will exit the US market entirely next week after Washington imposed additional tariffs on its exports. The company said the tariffs had made its margins in the US market unsustainable.
Australia's federal government said the decision does not undermine the broader critical minerals agreement signed between the two countries. Officials said Simcoa is expected to redirect exports to other markets to sustain production.
The move has renewed concern among Australian exporters about the impact of the Trump administration's tariff increases across multiple sectors. Industry representatives warned that similar tariff hikes could affect other Australian companies exporting to the US.
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