The Calcium Dodecylbenzene Sulfonate ecosystem comprises upstream, midstream, and downstream layers. Upstream raw material suppliers provide fatty acids, benzene derivatives, and calcium salts that constitute the surfactant’s core chemistry. Midstream, OEM manufacturers conduct synthesis, purification, and bulk packaging, drawing on technology providers for catalysts, reactors, and emissions‑control equipment. System integrators and EPC firms assemble these components into operational production lines, embedding safety and environmental controls. Downstream, distributors manage logistics and regional inventory, while end‑user manufacturers in detergents, cleaners, and specialty formulations incorporate the surfactant into final products. Value accrues through volume sales, compliance with regulatory specifications, and performance‑based differentiation.