Four copper-based artefacts and one slag from the Late-Chalcolithic Meymanatabad in the central plateau of Iran were analysed by the Particle-Induced X-Ray Emission (PIXE) method. This study has been carried out in order to characterize the chemical composition of the items under study and come to an understanding of their mineral ores. Through an understanding of these two items, lesser known aspects of metalworking abilities in that space-time grid can be revealed. The analyses made it apparent, that low but significant levels of arsenic (>1 wt%) were present in all of the samples. This fact along with the discovery of slags at the site can indicate local work on smelted arsenical copper. This type of copper-base artefact production could be considered a wide practice in the Late Chalcolithic Period in the central plateau of Iran.