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Clauses 2.Ìý1.2.1 and 2.1.2.2 of the Agreement is deleted in its entirety and replaced with the following Clauses 2.1.2.1 and 2.1.2.2 to read as set forth in the following quoted text: QUOTE 2.1.2.1 The Seller is currently developing a new engine option (the “New Engine Optionâ€� or “NEOâ€�), applicable to the A319-100, A320-200 and A321-200 model aircraft (the â€�A320 Family ´¡¾±°ù³¦°ù²¹´Ú³Ùâ€�). The specification of the A320 Family Aircraft with NEO will be derived from the relevant Standard Specification and will include (i) as applicable, the relevant NEO Propulsion System (ii) Sharklets, (iii) airframe structural adaptations and (iv) Aircraft systems and software adaptations required to operate such A320 Family Aircraft with the New Engine Option. The foregoing is currently reflected in the Irrevocable SCNs listed in Exhibit B4 to the Agreement, Appendix 3 and Appendix 4 to this Letter Agreement, the implementation of which is hereby irrevocably accepted by the Buyer. 2.1.2.2 The New Engine Option shall modify the design weights of the (i) A319 Standard Specification as follows: MTOW of [***] metric tons, MLW of [***] metric tons and MZFW of [***] metric tons, (ii) A320 Standard Specification as follows: MTOW of [***] metric tons, MLW of [***] metric tons and MZFW of [***] metric tons, and (iii) the A321 Standard Specification as follows: MTOW of [***] metric tons, MLW of [***] metric tons and MZFW of [***] metric tons. It is agreed and understood that the above design weights may be updated upon final NEO specification freeze. UNQUOTE

Clauses 2.Ìý1 and 2.2 are without prejudice to the terms of the TSC, the BSC and any EWIC User Agreement in respect of the Interconnector and do not relieve the EWIC Capacity User from any of its obligations under those instruments.

Clauses 2.Ìý2 and 2.6 notwithstanding, Genworth shall not be obliged to procure that any of the European Subsidiaries authorise, sign or submit any Tax return that is not true and accurate in all material respects.

Clauses 2.Ìý1.4 and 2.1.5 above do not relieve either party from the requirement to comply with the express provisions of this Contract and the parties are subject to all such express provisions.

Clauses 2.Ìý1 and 2.2 are without prejudice to the terms of the TSC, the BSC and any Xxxxx Capacity Agreement in respect of the Interconnector and do not relieve the Xxxxx Capacity User from any of its obligations under those instruments.

Clauses 2.Ìý5.1 and 2.5.2 shall not apply in relation to any Losses incurred in relation to; (i) Taxation; (ii) any Retirement Benefit Arrangements; (iii) any Losses in relation to health, safety and environmental Liabilities; or (iv) any other Losses apportioned (including by way of any caps or other limitations) under or any Losses incurred as a result of a breach of the Reorganisation Agreements, the Interface Agreements or any contract entered into after the Completion Date between any member of the BP Group and any member of the Innovene Group.

Clauses 2.Ìý1.1, 2.1.2 and 2.1.3 of this Amendment and Novation Agreement shall also apply, as they apply to the Participation Agreement, in relation to any other agreement, instrument or document between or binding upon Alamo and any or all of the other Parties (and no other person or persons) (a "side agreement"), if and to the extent that the side agreement in question relates to any of the rights, liabilities and obligations affected by Clauses 2.1.1, 2.1.2 and 2.1.3 of this Amendment and Novation Agreement.

Clauses 2.Ìý11.2 and 2.11.3 shall not apply to any Information to the extent that either party: a. exercises rights of use or disclosure granted otherwise than in consequence of, or under, the Contract; b. has the right to use or disclose the Information in accordance with other conditions of the Contract; or c. can show: i. that the Information was or has become published or publicly available for use otherwise than in breach of any provision of the Contract or any other agreement between the parties; ii. that the Information was already known to it (without restrictions on disclosure or use) prior to it receiving it under or in connection with the Contract; iii. that the Information was received without restriction on further disclosure from a third party who lawfully acquired it and who is himself under no obligation restricting its disclosure; or iv. from its records that the same information was derived independently of that received under or in connection with the Contract; v. provided the relationship to any other Information is not revealed.

Clauses 2.Ìý2.3 and 2.2.4 shall not apply to any repayment or prepayments pursuant to Article 11, 12 and 13 of the Credit Regulations. EXHIBIT A TO POLYVISION BELGIUM AND POLYVISION FRANCE LOAN AGREEMENT POLYVISION BELGIUM PAYMENT SCHEDULE Principal shall be due and payable quarterly, commencing January 31, 1999 and continuing on the last day of each three months thereafter to and including the last day of October 2004 in installments as set forth below: Date of Payment: Each January 31, April 30, July 31, and October 31 Quarterly Principal Commencing January 31, 1999 Amount Due --------------------------- ------------------- 1999 360,833.00 2000 4,811,100.00 2001 11,666,918.00 2002 13,230,525.00 2003 14,433,300.00 2004 15,636,075.00 PROVIDED that in any event the entire remaining principal balance then outstanding, together with any other amounts due hereunder, shall be due on October 31, 2004. POLYVISION FRANCE PAYMENT SCHEDULE Principal shall be due and payable quarterly, commencing January 31, 1999 and continuing on the last day of each three months thereafter to and including the last day of October 2004 in installments as set forth below: Date of Payment: Each January 31, April 30, July 31, and October 31 Quarterly Principal Commencing January 31, 1999 Amount Due --------------------------- ------------------- 1999 206,190.00 2000 2,749,200.00 2001 6,666,810.00 2002 7,560,300.00 2003 8,247,600.00 2004 8,934,900.00 PROVIDED that in any event the entire remaining principal balance then outstanding, together with any other amounts due hereunder ,shall be due on October 31, 2004. EXHIBIT 25.1