definiens: means tangible materials that ( a ) are Controlled by AlderHoldings and/or its Affiliate(s ), ( b ) arenecessary or useful for the Development and/or Commercialization of ( i ) ALD518, ALD518 LF Product, a Selected LF BackupCompound and/or a Licensed Product containing a Selected LF Backup Compound or ( ii ) if [COMPANY] exercises the Option, Selected Cancer Backup Compound and/or Co - Developed Product, and ( c ) are not Bulk Substance, Licensed Compound orProduct . Alder Materials shall include but not be limited to : ( A ) production strains and Master Cell Banks for ALD518 andSelected LF Backup Compounds and, if [COMPANY] exercises the Option, production strains and Master Cell Banks for SelectedCancer Backup Compounds, ( B ) a control antibody for ALD518 that provides a standard for testing manufactured BulkSubstance, ( C ) [ * * * ] that provides a standard for background protein expression, ( D ) [ * * * ] and ( E ) materials necessary orreasonably useful for performing an immunogenicity or host cell protein assay transferred by Alder to [COMPANY] . Other than thematerials listed in the preceding sentence under clause ( A ) through ( E ), Alder Materials shall not include any of the following : plasmid constructs, vectors, [ * * * ], and any tangible material that incorporates or was created for use with the Alder ABSTechnology