Corrugated board is heavy, bulky and mostly air, which means freight decides the deal long before the unit price does. A container of flat-packed boxes from Asia can spend five to seven weeks at sea; the same load leaves a Turkish plant and reaches Rotterdam, Hamburg or Trieste in days by road. For any buyer inside Europe or the Middle East, that is not a marginal advantage. It is the reason the trade exists at all.
Turkey has the paper mills to back it. Domestic containerboard capacity covers a large share of what the converters use, which shortens the chain from reel to box and takes one currency exposure out of your price. It also means Turkish converters can quote recycled testliner and fluting grades competitively, which matters more every year as recycled-content thresholds move from a marketing line to a legal one.
Two rules now sit on top of every corrugated quote into the EU. The EU Deforestation Regulation applies to large and medium operators and to traders of all sizes from 30 December 2026, and empty boxes sold as a product are squarely inside its scope even though boxes used to carry someone else's goods are not. The Packaging and Packaging Waste Regulation, (EU) 2025/40, then caps empty space in shipping and e-commerce packaging at 50 percent from 1 January 2030. Neither rule changes what a box is made of. Both change what documentation and what dimensions you can accept.