INTERNATIONAL SUGAR PACT TO BE RENEGOTIATED The International Sugar Agreement (ISA) will be renegotiated, International Sugar Organization (ISO) officer in charge Constantin Politoff told Reuters after a special session of the pact's council. A decision on how to renegotiate will be taken at the ISO six monthly session in May. The alternatives are between an autumn London conference for another pact without economic clauses, but a different voting and budgetary structure, or a Geneva-based conference next year for a new pact with economic clauses, he said. But delegates said the latter would only be considered if the world's four major exporters -- Australia, Brazil, Cuba and the European Community -- can resolve differences over how prices can best be supported and how to share the world Today's special session was called because the U.S. earlier indicated it would only be able to pay 56 pct of its share of the ISO budget. At today's council session Politoff said the U.S. would try and find a way to pay the balance of about 50,000 stg later this year. Currently, about three quarters of this year's ISO 800,000 stg budget has not been paid but delegates said the U.S. caused controversy as it said it might not pay its full contribution in the last year of the current pact. The Soviet Union has called for changes to the way the ISO budget is shared out. Currently it is halved between importers and exporters and the Soviet Union has a 30 pct share of the importer half. The Soviets want a new sugar pact to have only a single category of members who would all share the costs pro rata to their share of world sugar trade. The ISO executive committee next meets on April 23 with the next full council session in the week of May 19. There are 12 importing and 44 exporting members of the ISO.