Double digit growth at Diploma

Technical products firms Diploma said it expects turnover to rise 13 per cent this year, but warned that profit margins had slipped due to a number of purchases and a stronger pound. The FTSE 250 firm, which supplies the life sciences and seals industries, bought US-based J Royal in December for £11m, boosting revenue. Diploma said underlying sales would rise by around five per cent when it reports in November.