(1)On 19 December 2018, the Commission received an application from KitoZyme for the extension of use of chitosan hydrochloride, approved by Commission Implementing Regulation (EU) No 563/2014note as a basic substance. As that application was not complete, on 28 November 2019, KitoZyme submitted a revised application accompanied by the information required by the second subparagraph of Article 23(3) of Regulation (EC) No 1107/2009.