Trump tariffs threaten havoc for companies with Asia supply chains

Shares in top US companies including Apple, Amazon and Tesla tumbled in after-hours trading on Wednesday as Donald Trump’s sweeping tariff regime threatened widespread upheaval to global supply chains.

Technology companies were among the hardest hit in initial market reaction, with contracts tracking the Nasdaq down 4 per cent. Apple, which is heavily exposed to additional tariffs on China, saw its shares plummet 7 per cent, with Amazon down about 6 per cent.

The escalation of Trump’s