Dual-listed a2 Milk said it planned to expand its brand of milk across the North East region of the United States from this month.
A2, which markets an alternative A1 beta casein-free milk, said the business had been focused on achieving sales based targets before expanding its footprint in the US on a region-by-region basis.
"Sales velocities are now achieving sustainable levels in California, the South East region and select natural retail chains, which supports the expansion into an additional region," a2 said in a statement.
The North East, home to roughly 60 million US consumers, is significant for the refrigerated milk category and accounts for about 20 per cent of the total milk category volume in the US.
The geography includes New York, New Jersey, Pennsylvania, Connecticut, Rhode Island, New Hampshire, Massachusetts, Vermont and Maine.