Photo taken on March 25, 2015 shows a supermarket shelf of "Oreo", which used to be a brand of Kraft Foods Group, at a supermarket in Ner York, the United States. Ketchup maker H.J. Heinz Company and Kraft Foods Group agreed on Wednesday to merge in a deal that would create the fifth largest food and beverage company in the world, with about 28 billion U.S. dollars in annual revenue. (Xinhua/Wang Lei)