China’s Kweichow Moutai Co. has been named as the world’s most-valuable liquor company. Moutai overtakes Johnnie Walker brand owner Diageo Plc. with a market value of $71.5 billion. Moutai shares surged 55% over the past year, more than twice the gain for London-based Diageo. A third of Diageo’s revenue was from North America and a quarter from Europe in the fiscal year to June, while 95 percent of Moutai’s sales were in the domestic market.