(WSJ) - It was in June 2000 when Greg De'Eb, a diplomat at the South African High Commission in Hong Kong, attended a conference organized by the territory's trade-development council asking whether the region could become the wine-trading center of Asia. It provided, he says, the genesis of an idea. If this small city-state was serious about attracting some of the greatest names from Bordeaux and Burgundy, then the collectors who bought these wines were going to need somewhere to store them.