<p>This study investigates electromagnetic ion cyclotron (EMIC) waves in a plasma comprising multiple ion species, specifically H⁺, He⁺, and O⁺ ions. The analysis is conducted using Particle Aspect Analysis in conjunction with the Kappa distribution function to conduct this analysis. We evaluate expressions for the dispersion relation, resonant energies (both perpendicular and parallel), growth rate, and growth length of EMIC waves in this plasma environment. This analysis specifically focuses on the auroral acceleration region. We explore the impact of the Kappa distribution function in a low β (ratio of plasma pressure to magnetic pressure) homogeneous plasma with multiple ion species, under the assumption that the wave propagates in a direction parallel to the static magnetic field. The plasma model includes both resonant and non-resonant particles, where resonant particles exchange energy with the wave and non-resonant particles contribute to its oscillatory behaviour. These findings are pertinent to space plasma conditions typically found in the auroral acceleration region of the Earth's magnetosphere.</p>