China's fomula market analysis and compare BAL& A2M

As we all know,China have the biggest and growest market in the world.Every year about 16million baby were born in China.And the amount from 0-3years which need the fomula are 50million,that about 50times as Australia.
China has more than 100 brands of baby fomula and some big companys have bought milk farm in Australia,NZ and Europe to supply high quality fomula to China.But unfortunately,due to China's serious food safety problems, especially the Middle class parents,they dont trust the fomula which made in china,they prefer to buy foreign brand and made from oversea.
There are so many brand in the world.Europe,American ,Australia and Newzealand. Actually,most baby fomula are similar,like you eat the steak in the Europe or USA ,they dont have big differences.So why the australia's fomula is the fastest growing and most popula in the recent years?