The global iodine market remains tight as the effects of the Japanese earthquake and tsunami have constrained supply from the world’s second largest producer, according to market sources.The price of iodine (crystal, min 99.5%, drums) on the spot market have been quoted at a range of $55-60/kg since early April, although smaller quantities have been sold for as much as $65/kg.“I think it not unlikely that this condition will continue through most of the rest of the year, especially if Chilean production drops off,” a producer told IM.Iodine prices had been largely stable last year and...