The EU introduced controls on vaccine exports on January 29, which came into effect in February.
Companies like Pfizer and AstraZeneca which manufacture coronavirus vaccines in the bloc are required to notify national authorities and the European Commission whenever they want to export vaccines to third countries.
The EU then extended the rules through to June in March, with Stella Kyriakides, Commissioner for Health and Food Safety, saying at the time: “We expect companies with which we have signed a contract to fulfil their obligations towards EU citizens.
“The EU exports very significant volumes of COVID-19 vaccines, true to our commitment to global solidarity.
“Yet, not all companies are honouring their agreements with the EU despite having received a down payment to enable sufficient production.”