overview revenue for the group improved to chf 1 557 million up 13 5 in constant currencies 12 on a reported basis this was achieved across business lines and geographies organic growth exclusive of acquisitions 11 2 strong consumer testing minerals systems & services certification industrial life science with all these businesses delivering more than comparable first half last year operating income by 55 or 32 229 at margins except trade assurance continued improve significant gains being agricultural environmental net financial 4 reflecting low global yields volatile exchange rate environment tax 23 remains range that expects medium term profit increased 170 from 124 an increase 37 38 currency cash flow 141 inflow used fund investment fixed assets
