Purchase and cancellation by BNPP B.V. and BP2F in respect of any W&C Securities and by BNPP in respect of Warrants. The Issuer may, but is not obliged to, at any time purchase W&C Securities at any price in the open market or by tender or private treaty. In the case of BNPP B.V., BP2F or BGL, any W&C Securities or, in the case of BNPP, any Warrants so purchased may be held or resold or surrendered for cancellation, provided however, that W&C Securities so purchased may only be resold pursuant to an exemption from the registration requirements of the Securities Act provided by Rule 144A, Regulation S or otherwise thereunder and, in the case of a purchase or cancellation of W&C Securities that are CREST Dematerialised Securities, such securities must be transferred to the Euroclear Registrar for cancellation.