113The principle of sound administration, where it constitutes the expression of a specific right such as the right to have one’s affairs handled impartially, fairly and within a reasonable time, as provided for in Article 41 of the Charter of Fundamental Rights, must be regarded as a rule of EU law whose purpose is to confer rights on individuals (see, with regard to the duty to act with all necessary diligence, which is inherent in the principle of sound administration and obliges the relevant institution to examine carefully and impartially all the relevant facts of the case, the judgment of 16 December 2008 in Masdar (UK) v Commission, C‑47/07 P, ECR (Extracts), EU:C:2008:726, paragraph 91 and the case-law cited; see also, to that effect, the judgments of 4 October 2006 in Tillack v Commission, T‑193/04, ECR, EU:T:2006:292, paragraph 127, and SPM v Council and Commission, cited in paragraph 108 above, EU:T:2008:494, paragraph 127).