(Corrects to remove extraneous hyphen in headline, no other changes to text) By Christine Chen and Shivangi Lahiri SYDNEY (Reuters) -Australia's Treasury Wine Estates on Monday pulled its earnings guidance for 2026 and paused an A$200 million ($130 million) share buyback, citing weak sales of its flagship Penfolds wines in China and distribution challenges in the U.S. The announcement sent shares of Treasury, one of the world's top five winemakers by volume, down 14% to A$5.99, their lowest point in mor ...