Bega Cheese Ltd plans to generate as much as half its revenue from overseas by 2020 as the Australian dairy company expands a range of products with vitamins maker Blackmores Ltd.

The 117-year-old cheese-maker started selling infant formula this year through a joint venture with Blackmores as demand for the dried-milk powder surged in China.

In an interview in Sydney last week, Bega Chairman Barry Irvin said the two companies aim to follow up with nutritional powders for the elderly as well as diabetes sufferers, and then push into developing markets across Asia.