(Reuters) -Kraft Heinz Co said on Wednesday it would raise the prices of its snacks and condiments further to counter soaring costs of raw materials and transportation, after posting quarterly earnings above market expectations. Shares of the Chicago-based company rose as much as about 6% in morning trading. A strained supply chain, however, has driven up freight and labor expenses and aggravated problems for companies like Kraft, Conagra and Kellogg that are grappling with surging costs of grains, meat and edible oils.