Despite the continuing high and volatile level of prices, copper continues to be by far the most popular conductor material in many types of cable. Any substitution of copper by alternative materials is much less obvious for cable applications than it is for some non-cable applications. There are, however, some signs that OEMs and end-users are considering the alternatives to copper more seriously. Most commentators suggest that the currently high level of material prices will not be sustained long term. Once prices do return to a lower level, the search for alternatives to copper in cable applications is likely to have a lower priority.