ASX-listed Cellnet has appointed financial controller Christopher Barnes as company secretary.
Barnes replaced Don Mackenzie who resigned from a part time contract in that role.
Barnes has been with Cellnet since 2006.
Stuart Smith's role as managing director was unaffected.
Cellnet announced a net profit for the for first six months of its financial year of $1.524 million and increase of 64 percent from the previous corresponding period.