Mrs May said: "The United Kingdom would like the option to fully associate ourselves with the excellence-based European science and innovation programme, including the successor to Horizon 2020 and
Euratom R&T.
The EU and
Euratom match back-to-back their loans' features and maturities with their respective debt profiles.
Around 21% of the UK's electricity is generated by nuclear reactors, which Mr Greatrex said could make it much more complicated for bringing in fuel outside
Euratom.
Earlier this year, the Government decided to trigger leaving
Euratom at the same time as leaving the EU.
A further issue is that
Euratom may also be forced to transfer its ownership of nuclear material to the UK, which could be complicated as it enriches, fabricates and reprocesses spent nuclear fuel on behalf of many other member states.
Euratom is a separate legal entity to the EU but is governed by EU institutions and the UK government says it has no option but to leave both at the same time.
The EU Treaty - the document which sets the rules for EU agencies - says one of the main functions of
Euratom is to establish uniform safety standards to protect the health of workers and the general public and ensure they are applied.
Japan had begun discussions with
EURATOM in 1999, and reached a broad agreement with
EURATOM in their third discussions this year, the sources said.
An EU spokesperson confirmed that Ireland makes contributions to
Euratom. A spokesperson for the Irish government said it is totally against increased discharges at Sellafield, but admitted Ireland is a member of
Euratom.
London: Fitch Ratings has affirmed the European Union's (EU) and the European Atomic Energy Community's (
Euratom) Long-Term IDRs at 'AAA' with a Stable Outlook.
The twin defeats came as peers hit out at Britain's decision to leave the Brussels nuclear regulator
Euratom.