In a trading update, the group, which expanded significantly with the acquisition of Superfos earlier in the year, said that higher volumes and success in passing on input price increases to customers would boost its numbers for the 2010-2011 financial year. Sales figures will also be helped by growth in sales of added-value products for the pharmaceutical, personal care and long shelf-life sectors and coffee capsules. Polymer prices, RPC said, had risen by around 20% in its current financial year and have been at record levels since January this year. A statement said: "The Group is able to pass through these increases onto its customer base, albeit with a time lag which has had a significant negative impact on the full year margins. The Group is confident in its capability to pass through both the most recent and any future polymer price increases."