The head of Foster's Group's wine arm, Treasury Wine Estates, has said the firm needs to up its premium focus in the US in order to improve earnings, according to a report. Treasury Wine Estates intends to put more resources into marketing wines priced above US$10, David Dearie reportedly told journalists today (13 October) at the opening of the firm's upgraded Coldstream Hills winery in Australia. He added that higher-priced wine would also offer some protection from the strong Australian dollar (AUD) against the US$