Difference between horizontal merger and concentric merger?

A horizontal merger occurs between companies operating in the same industry and at the same stage of production, aiming to consolidate market power and reduce competition. In contrast, a concentric merger involves companies in related but distinct industries, where the merging firms seek to leverage complementary products or services to enhance their market offerings. While horizontal mergers focus on increasing market share, concentric mergers aim to diversify products and expand customer base through synergies.