All 3.5 million containers must have the new tag to be accepted into the pool system. The company said the tag protects the pool from counterfeiting and keeps fake containers out of the system.
Container Centralen managing director Phil Squance said: "It is going as expected. So far there have been no problems. People have taken it up with the more understanding they have when they look at the true costs. Only a small minority are resisting. There will always be people resisting even if we did it for free."
Squance denied reports from Holland that there was a shortage of the new tags. He added that if suppliers charge retailers who do not have a red tag trolley empty to swap when they deliver, that is a matter for them.