Foreign makers of such products as washing machines and solar panels are ramping up shipments to the U.S. ahead of government decisions on whether to erect new barriers, trade data show.

The influx of goods comes after companies including appliance giant Whirlpool Corp. and solar-panel maker Suniva Inc. asked the Trump administration in recent months to use powers under a controversial trade law that gives the president wide discretion on tariffs and quotas.

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