(SMH) - Treasury Wine Estates, the world's second-largest wine firm, has continued to walk away from unprofitable markets causing volume sales to decline by 1.1 million cases or 6.2 per cent in the first half. But on releasing its first half half profit result this morning, the wine group, which owns the Penfolds, Rosemount, Wolf Blass and Lindeman's brands, said global demand for its premium luxury wines was outstripping supply while sales into Asia were booming.