Oslo-listed Siem booked net earnings of $22.4m for the three months to 30 September, around 25% higher than the $18.2m profit logged in the same period a year ago.
Operating profit jumped by half to $33.1m from $22.6m as margins improved to 46% from 38% a year earlier.
The improved margin helped offset a drop in revenues to $96.7m from $104.4m .
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