The Ammonia and Gasoline Engine ecosystem spans upstream feedstock provision, midstream technology development and engine assembly, and downstream distribution, installation, and operation. Upstream, raw material suppliers deliver ammonia, refined gasoline, and catalyst components that define fuel chemistry and emissions potential. Midstream actors—including technology providers, OEM manufacturers, and system integrators—translate these inputs into dual‑fuel power units, embedding combustion control, safety, and emissions‑abatement features. Downstream, distributors, service firms, and end users adopt the engines across transportation, stationary power, and marine sectors, creating the final value capture. This value chain analysis highlights how each segment contributes to performance, regulatory compliance, and cost structures that shape market dynamics. Revenue flows from feedstock contracts to OEM sales, while service agreements generate recurring income throughout the engine lifecycle.