The green tea chocolate ecosystem comprises a defined set of upstream, midstream, and downstream actors that collectively transform raw agricultural inputs into a finished confectionery offering. Upstream, agricultural producers and specialty extractors supply green tea catechins and cocoa beans, while flavor technology firms enable stable incorporation of tea aromatics. Midstream, contract manufacturers blend these inputs, apply chocolate tempering processes, and integrate packaging solutions that preserve sensory quality and shelf life. Downstream, distributors channel the finished bars to retail shelves, food‑service outlets, and e‑commerce platforms where end‑users make the final purchase decision. Value is captured through premium positioning, functional‑health claims, and brand differentiation, each stage adding cost and margin.