H.J. Heinz Co. said it has purchased...

H.J. Heinz Co. said it has purchased 51% of Win-Chance Foods Co. of Bangkok, Thailand, and plans to operate the company as a joint venture with the government of Thailand. Terms of the agreement were not disclosed. Heinz Chairman Anthony J. F. O’Reilly said the new company, to be known as Heinz Win Chance Ltd., will continue to manufacture and market cereals for babies and flavored milk powders for children.