Proposal to negotiate amendments to an existing contract for the supply and installation of a compound cryogenic helium distribution line for the LHC

This document concerns the proposal to negotiate amendments to an existing contract for the supply and installation of a compound cryogenic helium distribution line (QRL) for the LHC. For the reasons explained in this document, the Finance Committee is invited to approve amendments to an existing contract with the firm AIR LIQUIDE (FR) for a total amount exceeding the amount previously approved by the Finance Committee by 14 095 294 euros (21 848 375 Swiss francs), subject to revision, bringing the total amount of the contract to a maximum of 98 777 358 euros (153 109 600 Swiss francs), subject to revision. The amounts in Swiss francs have been calculated using the present rate of exchange.