GulfMark Offshore is offering bond investors more cash in its effort to buy back its bond debt at a fraction of its face value as part of a wider restructuring deal.

The US offshore vessel owner said it will now pay $520 for each $1,000 note, a smaller haircut than the maximum of $500 initially offered last month.

Investors holding bonds with a par value of $136m, out of the $300m total, tendered their notes before today’s move to increase the cash offer.

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