A2 Milk Co shares gained after the milk marketer played down fears about the infant formula market stemming from ASX-listed rival Bellamy's Australia's extended trading halt.

A2 Milk Co shares rose almost 5 per cent after the company updated shareholders at its annual meeting in Sydney.

The milk powder train looks set to roll on, but analysts have warned of tough times ahead for Bellamy's and A2.

A fight is brewing over the product labelling and health claims of the Australian dairy industry's most bitter rivals.

a2 Milk has reported sharp lift in earnings driven by increased infant milk formula sales.

A2 Milk shares rose 14 per cent after the milk marketing company raised its full-year guidance.

Trade Minister Todd McClay says the Government is assessing the implications of recent regulatory changes in China's cross border e-commerce market.

Infant formula and health supplement firms are taking a sharemarket pounding today.

Amid hard times in the dairy industry, one company has found a winning formula. What's the secret and can it last?

Bullish sentiment drives dairy firm's stock up 11.1 per cent on positive day for Nuplex and power companies.

Shares of A2 Milk soared to a record after the milk marketer raised its annual earnings forecast.

The stock, which is listed on both sides of the Tasman, traded as high as $1.27 - a 16.5 per cent gain on the opening price - before closing up 11.9 per cent at $1.22 last night.

An insider trading inquiry into A2 Milk Co suitor, Dean Foods, is understood to have scuppered its takeover attempt.

UPDATED: A2 milk is forecasting earning to triple in 2016 with sales expected to rise faster than forecast.

A2 Milk Co, the dual-listed milk marketing company, has received an expression of interest from two associated trade parties keen on taking over the company.

The a2 Milk company is suing the Australian Broadcasting Corporation for misleading and deceptive statements.

New Zealand shares fell for a second day as the kiwi dollar's slide to a four-year low sapped overseas investor appetite for high-yielding stocks.

What are the top 10 worst performing shares of 2014 so far? Find out with a graphic showing the biggest losers.

Brewing and food giant Lion has become the second company to try to scupper the strong growth New Zealand's A2 Milk is experiencing across the Tasman.