Qantas has confirmed that it will inject another $60 million into Jetstar Japan as it faces the impact of a weak yen making fuel more expensive and delays to establishing a second base in the country.

Following speculation about the need for further funding, Qantas said today that both it and Japan Airlines – the two largest shareholders – would make a combined injection of 11 billion yen ($120 million).

It will result in Qantas and Japan Airlines both boosting their stakes in Jetstar Japan from 41.7 per cent to 45.7 per cent.

But the budget airline’s two smaller shareholders – Mitsubishi and Century Tokyo Leasing – will have their stakes drop from 8.3 per cent to 4.3 per cent each because they are not participating in the share placement.

Qantas said the equity injection would ‘‘support Jetstar Japan’s future fleet and infrastructure growth, enabling the carrier to capitalise on the significant potential of the low cost carrier market in the world’s third largest economy’’.