Common use of Canada and the US Clause in Contracts

Canada and the US. holders must obtain a guarantee from a local financial institution that has a corresponding affiliate in Canada or the US that is a member of an acceptable Medallion Guarantee Program. The corresponding affiliate must over guarantee the guarantee provided by the local financial institution. (To be completed if true) The undersigned hereby represents, for the benefit of all holders of Rights and Common Shares, that the Rights evidenced by this Rights Certificate are not, and, to the knowledge of the undersigned, have never been, Beneficially Owned by an Acquiring Person or an Affiliate or Associate thereof or by any Person acting jointly or in concert with any of the foregoing (all capitalized terms are used as defined in the Rights Agreement). Dated: Signature

Canada and the US. holders must obtain a guarantee from a local financial institution that has a corresponding affiliate in Canada or the US that is a member of an acceptable Medallion Guarantee Program. The corresponding affiliate must over over-guarantee the guarantee provided by the local financial institution. (To be completed if true) The undersigned hereby represents, for the benefit of all holders of Rights and Common Shares, that the Rights evidenced by this Rights Certificate are not, and, to the knowledge of the undersigned, have never been, Beneficially Owned by an Acquiring Person or an Affiliate or Associate thereof or by any Person acting jointly or in concert with any of the foregoing (all capitalized terms are used as defined in the Rights Agreement). Dated: Signature

Canada and the US. holders Warrantholders must obtain a guarantee from a local financial institution that has a corresponding affiliate in Canada or the US U.S. that is a member of an acceptable Medallion Guarantee Program. The corresponding affiliate must over guarantee overguarantee the guarantee provided by the local financial institution. (To be completed if true) The undersigned hereby represents, for the benefit of the Company and all holders of Rights and Common Sharesof Shares of the Company, that the Rights evidenced by this Rights Certificate are not, and, to the knowledge of the undersigned, have never been, Beneficially Owned by an Acquiring Person or an Affiliate or Associate thereof or by any Person acting jointly or in concert with any of the foregoing (all capitalized terms are used as defined in the Rights Agreement). Dated: Signature

Canada and the US. holders must obtain a guarantee from a local financial institution that has a corresponding affiliate in Canada or the US that is a member of an acceptable Medallion Guarantee Program. The corresponding affiliate must over over-guarantee the guarantee provided by the local financial institution. (To be completed if true) The undersigned hereby represents, for the benefit of all holders of Rights and Common Shares, that the Rights evidenced by this Rights Certificate are not, and, to the knowledge of the undersigned, have never been, Beneficially Owned by an Acquiring Person or an Affiliate or Associate thereof or by any Person acting jointly or in concert with any of the foregoing (all capitalized terms are used as defined in the Rights Agreement). Dated: _____________________________________ Signature

Canada and the US. holders must obtain a guarantee from a local financial institution that has a corresponding affiliate in Canada or the US that is a member of an acceptable Medallion Guarantee Program. The corresponding affiliate must over over-guarantee the guarantee provided by the local financial institution. (To be completed if true) The undersigned hereby represents, for the benefit of all holders of Rights and Common Shares, that the Rights evidenced by this Rights Certificate are not, and, to the knowledge of the undersigned, have never been, Beneficially Owned by an Acquiring Person or an Affiliate or Associate thereof or by any Person acting jointly or in concert with any of the foregoing (all capitalized terms are used as defined in the Rights Agreement). Dated: Signature

Canada and the US. holders must obtain a guarantee from a local financial institution that has a corresponding affiliate in Canada or the US that is a member of an acceptable Medallion Guarantee Program. The corresponding affiliate must over over-guarantee the guarantee provided by the local financial institution. (To be completed if true) The undersigned hereby represents, for the benefit of all holders of Rights and Common Shares, that the Rights evidenced by this Rights Certificate are not, and, to the knowledge of the undersigned, have never been, Beneficially Owned by an Acquiring Person or an Affiliate or Associate thereof or by any Person acting jointly or in concert with any of the foregoing (all capitalized terms are used as defined in the Rights Agreement). Dated: ______________________ Signature