Starbucks has launched a campaign in the US to protect and expand tax breaks on foreign profits.

The move comes just months after its tax structure provoked a political backlash and public relations storm in the UK.

In a letter to lawmakers on the House ways and means committee, which is weighing a sweeping overhaul of the US tax system, the coffee shop chain said its effective global tax rate exceeded 32%.

The chain also said it was willing to consider forgoing some US tax breaks, including a domestic manufacturing deduction and accelerated depreciation for business investments, as long as the revenues could be used to lower the US corporate tax rate, currently set at 35%.

It also asked for expanded tax breaks for the royalties it pays to entities that operate many of its stores outside the US.