Norwegian fertilizer-maker Yara posted slightly higher than expected second-quarter profits on Tuesday and warned there could be shortages of nitrogen-based fertilizers amid high gas prices.
 
April-June earnings before interest, tax, depreciation and amortisation, excluding one-off items, rose to $1.48 billion from $775 million a year ago, while analysts in a company-provided poll had expected profits of $1.39 billion.
 
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