 Abstract aluminium matrix composites, which are a subclass of metal matrix composites, have characteristics including low density, high stiffness and strength, better wear resistance, controlled thermal expansion, greater fatigue resistance, and improved stability at high temperatures. These composites are of interest to both the scientific and industrial communities due to their potential use in a wide range of applications. In this study, the effect of stirring speed, processing temperature, and stirring duration on the percentage elongation of ol-pumice, PP, carbonized coal particles, CCP, hybrid composites was investigated. Additionally, the optimal weight of these natural ceramic reinforcements was determined using the Taguchi optimization technique. The results showed that the percentage of elongation of the hybrid composite was most affected by the PP, followed by processing temperature, stirring speed, CCP, and stirring time. At 2.5 weight percent of pumice particles, 2.5 weight percent of carbonated coal particles, 700 degrees Celsius processing temperature, 200 rpm stirring speed, and 5 minutes stirring time, the optimum percentage of elongation. This article was authored by Tanimun Kogi Ibrahim, Danduma Saleh Yawaz, Bashar Dana Saib, and others.