Vifor Pharma AG (SWX:VIFN) said in a statement: "Vifor Pharma Group systematically reviews options that can strengthen its market position and/or accelerate the growth of the company both organically and through partnerships and acquisitions. Vifor Pharma is therefore regularly in discussions with other market participants and does not comment on them." The press release follows news reports that CSL Limited (ASX:CSL) is in talks to acquire Vifor.