If they start to reverse, then you'll see things reversing for next year, but we have to wait and see," he said.
Slashing prices also reflects stiffening competition in some markets as companies struggle with waning consumer demand and households tighten budgets.
Kraftliner prices, up 60 euros per tonne in the first half, have since fallen by 120 euros a tonne.
Europe's gas rollercoasterWAGES AND BORROWING COSTSSome companies won't make cuts though, as they protect margins or face higher wages and borrowing costs.
"It does signal a retreat in operating margins for firms like Smurfit, hence the negative reaction in the share price this morning," he said.