Rio Tinto last night slammed Chinese steelmakers over increasingly aggressive negotiating tactics, after the China Iron & Steel Association called for its members to boycott the Anglo-Australian mining group's spot sales of iron ore. The steelmakers have failed to agree a 2008-09 annual contract price with Rio and BHP Billiton despite months of talks. Earlier this year, the Chinese authorities delayed issuing permits needed to import some shipments of Australian iron ore, a move that was also considered a negotiating ploy.
