To ask the Secretary of State for Energy what quantities of plutonium are currently under safeguards at (a) each of the operating nuclear power plants and (b) at Sellafield; and if he will indicate the proportions of plutonium under nuclear safeguards at Sellafield which originated in (i) United Kingdom nuclear power plants operated by the home nuclear power generators, Nuclear Electric and Scottish Nuclear; (ii) foreign nuclear plants, in fuel shipped to Sellafield for reprocessing and (iii) nuclear reactors operated by British Nuclear Fuels plc and the United Kingdom Atomic Energy Authority, respectively.

I refer the hon. Member to my Department's press release No. 195 of 18 October 1990, copies of which have been placed in the Library of the House.