A shipyard in China that halted construction of new vessels eight years ago is staging a full comeback this year as global demand shifts towards small and medium-sized tonnage over ultra-large container ships.Founded in the 1950s, Qingshan Shipyard, located on the Yangtze River in Wuhan in the central province of Hubei, was once a leading domestic manufacturer of chemical tankers. It now falls under the umbrella of China Merchants Group, a major Hong Kong-based conglomerate.The yard has...