The chairman of Chinese tech giant Huawei has warned that his company could shift away from Western countries if it continues to face restrictions.

Huawei has been under scrutiny by Western governments, which fear its products could be used for spying.

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Inventor and outspoken Brexiter Sir James Dyson  is moving the headquarters of his vacuum cleaner and hair dryer technology company to Singapore.

The Dyson chief executive, Jim Rowan, said the move from Wiltshire to Singapore had “nothing to do with Brexit” but was about “future-proofing” the business.

Dyson had called on the government to walk away from the EU without a deal.