Japan-based snacks group Calbee saw profits increase by more than a fifth in the first half of its financial year with sales growth at home and abroad.

The company booked net income of JPY7.06bn (US$62.9m) for the six months to the end of September, up 21% on the first half of its 2013/14 financial year. Operating income grew 29.4% to JPY11.45bn.

Net sales climbed 11.1% to JPY106.27bn. Calbee generates around 90% of its revenue in Japan and the company posted a 9.3% rise in domestic sales to JPY96.4bn.

Overseas sales jumped 31.5% to JPY9.87bn, with Calbee noting its revenue in North America had almost doubled amid “firm sales” of its Harvest Snaps snacks.

Earlier this month, Calbee announced it was opening a snacks plant in Mississippi to build on its sales in the US.