Tristel Plc provided earnings guidance for the first half ended December 31, 2013. For the period, the company expects revenue will be in excess of £6.4 million and pre-tax profit in excess of £0.7 million exceeding levels indicated in the AGM trading update issued in December. The company has benefited from strong operational cash flow in the first half of the year and net cash at 31 December was £1.4 million.