Japan packaging group Rengo to raise cardboard and other product prices by 10% or more

A broad, double-digit increase across multiple product lines signals that input-cost pressure is still being passed downstream rather than absorbed, which matters for any business whose margins depend on packaging. The absence of an effective date or scope leaves the timing and reach of the pass-through unclear, so the open question is whether other packaging producers follow with similar moves and how much of the increase sticks at the buyer level.