Touch sensors and optical filters maker Zytronic rose to a 52-week high on the day of its annual general meeting where company Chairman, Tudor Davies, revealed that sales in the current financial year are ahead of last year."The board is pleased to report that in the first four months of the financial year we have continued to experience strong demand and an improvement in sales of our touch products compared with the same period last year. This has provided a very encouraging start to the year," Davies said.The strong start to the year has added to the board's optimism that the increasing market acceptance of its touch products is indicative of an improving outlook, "albeit against the backdrop of less certain economic conditions."The shares rose 8.5p to 287.5p.