Permanent residency for Hongkongers may be worth £4bn to UK economy, says thinktank

Analysis finds value of moved pensions savings could raise similar revenue by 2029 as a year's air passenger duty

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Allowing Hongkongers who have moved to the UK to stay permanently after five years could net more than 4bn for the Treasury by 2029, according to a thinktank.

The analysis by the China Strategic Risks Institute (CSRI), which was sent to the Home Office before the budget, suggests the move could raise almost as much revenue as a year's worth of air passenger duty by enabling Hongkongers to move their pension savings here.