Amcor has reported a net profit of $238.3 million for the six months to December, an increase of 16.3 per cent from the previous corresponding period, with the firm noting that the strong Australian dollar affected overseas earnings.

The Australian packaging group declared an interim dividend of 19.5 cents per share, a rise of 8.3 per cent. Profit for the same period the previous year was $205 million.

Shares were up 2.9 per cent to $9.18.

The company this morning said volumes in its key markets in developed countries were stable in the period, while volumes grew strongly in its emerging markets.

"The high Australian dollar meant that the translation of overseas earnings into Australian dollars, for reporting purposes, had an adverse impact on profit after tax of $20 million," Amcor's managing director and chief executive Ken MacKenzie said.

"On a constant currency basis, earnings per share increased by 14.1 per cent.

"The result again highlights the defensive nature of our businesses. Volumes across a number of the key market segments in developed countries continued to be stable and there was strong volume growth in emerging markets."

"The outlook for the current year remains unchanged from the full year results in August.

"It is expected Amcor will deliver another year of higher underlying profits in the current year."

The firm also posted an underlying profit after tax of $322 million for the first-half of the 2013 reporting year, a 5.7 per cent rise from the same period the year before, on the back of a one-off $83.7 million charge from the closure of its Queensland cartonboard plant.

With AAP