(d) any extension, renewal, substitution or replacement (or successive extensions, renewals, substitutions or replacements), as a whole or in part, of any of the Liens referred to in paragraphs (a) and (b) above or any indebtedness secured thereby; provided that such extension, renewal, substitution or replacement Lien shall be limited to all or any part of substantially the same property or assets that secured the Lien extended, renewed, substituted or replaced (plus improvements on such property) and the principal amount of indebtedness secured by such Lien at such time is not increased.

Status of BFI

BFI shall at all times remain a Subsidiary of the Company.