EU Trade and Agriculture spokesman Daniel Rosario said on Friday that farms were shut down in the Netherlands, Belgium, Germany and France after authorities confirmed that fipronil had been used.
Eggs or egg products from those producers have reached Austria, Britain, Denmark, Ireland, Italy, Luxembourg, Poland, Romania, Slovenia, Slovakia and Sweden, as well as Switzerland and Hong Kong outside the EU. Heavy and prolonged exposure can damage the kidneys and liver or cause seizures.
Experts and ministers will convene to discuss an egg contamination scandal which is so far known to have affected 15 European Union countries.
The UK food watchdog said about 700,000 eggs had been sent to the country from potentially contaminated Dutch farms, up from an earlier estimate of 21,000.
The BBC reported that there have been two arrests in connection with the scandal, after raids in Belgium and the Netherlands.
The EU on Friday called an emergency meeting to stop "blaming and shaming" over the insecticide- tainted eggs scandal as it emerged for the first time that the crisis had spread to Asia.
"Samples analysed in the Netherlands show traces of fipronil in the eggs, but not as a health hazard", the agency said.
"As far as the retail level is concerned, they have also retracted the problematic eggs, as well as increased the surveillance on eggs, especially (those) coming from European countries", Chan said.
Millions of eggs and egg-based products have been pulled from European supermarkets since August 1 and there are growing questions about who knew what, and when.
Egg imports are stringently controlled and only those with recognized health certificates can be imported to Hong Kong, she added.
"There must be no compromises when it comes to food safety", Ms Reinhard said.