European Union trade and agriculture spokesman Daniel Rosario said Friday that farms have also been blocked in France and Germany, and named 13 other countries that have received products from those countries.
Experts say the health risk from eating fipronil is low.
The EU countries which received the contaminated eggs included UK, Sweden, Austria, Ireland, Italy, Luxembourg, Poland, Romania, Slovenia, Slovakia and Denmark.
But the World Health Organization said that, when digested in large quantities, the chemical could cause harm to the kidneys, liver and thyroid glands.
However the country's veterinary and food administration said in a statement that the eggs were not risky to human health.
In France, Agriculture Minister Stephane Travert said that tests on imported eggs contaminated with pesticide show no risk to public health.
The Foods Standards Agency said 700,000 eggs had been sent to the United Kingdom from potentially contaminated Dutch farms.
Chan said the CFS took action after two egg samples imported from the Netherlands were found to contain excessive insecticide earlier this month.
When the food scare began in Europe, the centre claimed, it inspected major retailers in the city.
The eggs were sold to cafes and catering firms, making the Scandinavian country the 10th to be affected.
The agency said on Thursday the Danish distributor, Danaeg Products, has been ordered to recall the eggs because "the content is illegal", but "not dangerous".
A spokeswoman in Brussels said the situation was "evolving by the day", as criminal investigators continued to hold two men arrested for fraud after a series of raids in Belgium and the Netherlands.
"Information needs to be shared between (EU) member states without delay".
He said the eggs would either be destroyed or returned to the producer.