Chinese chemical tanker owner Xingtong Shipping has continued its fleet growth drive with contracts for four stainless steel chemical tankers at three domestic shipyards in a deal worth about RMB697.3m ($103m). The Shanghai-listed company said its wholly owned subsidiary, Xingtong Investment (Singapore), has signed separate newbuilding agreements with Taizhou Maple Leaf Shipbuilding, Taizhou Kouan Shipbuilding …