The Black Sesame Powder ecosystem spans three functional tiers. Upstream, agricultural producers and raw‑material suppliers deliver cleaned sesame seeds, the primary input for powder extraction. Midstream activities include roasting, dehulling, milling, and blending, performed by equipment manufacturers, processing firms, and formulation OEMs that convert raw seeds into a standardized powder with defined particle size and functional attributes. Downstream, packaging providers, distributors, and channel partners ensure product integrity and market access, while end‑users such as food manufacturers, nutraceutical companies, and cosmetic brands incorporate the powder into finished offerings. Value is captured through quality differentiation, functional claims, and supply‑chain efficiency, with each tier adding cost and margin layers that shape overall market dynamics.