Marconi, which on Friday admitted talks with its banks to reschedule its syndicated loans had broken down amid a worsening sales slump, denied that it was about to miss a combined e92m (£56.7m) payment that falls due on its two Eurobond issues this Saturday. Shares in the firm dipped a further 35%, losing 3.3p to 6.25p, as UBS Warburg cut its fair value on them to 5p from 30p.