This document concerns the proposal to negotiate an amendment to an existing contract for the supply of MQY-type superconducting quadrupole magnets for the LHC insertions. For the reasons explained in this document, the Finance Committee is invited to approve an amendment to an existing contract with the firm ACCEL (DE) for the supply of four additional MQY-type superconducting quadrupole magnets for an amount of 569 000 euros (881 950 Swiss francs), subject to revision for inflation, bringing the total to a maximum amount of up to 3 198 656 euros (4 957 917 Swiss francs), subject to revision for inflation. The amounts in Swiss francs have been calculated using the present rate of exchange