Commission Implementing Regulation (EU) 2017/2274 of 8 December 2017 concerning the authorisation of a new use of a preparation of 6-phytase (EC 3.1.3.26) produced by Komagataella pastoris (DSM 23036) as a feed additive for fish (holder of authorisation Huvepharma EOOD) (Text with EEA relevance. )