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Raw material quality control is one of the most important subjects for foundry manufacturing process due to advanced technology in sub nano-meter. Therefore, how to effectively detect abnormality in early stage of raw material incoming or even at supplier sites becomes an increasingly challenging topic. Comparing with traditional management concept based on judgment inspections to just confirm if raw material meets customer’s specification requirement, this paper will focus on raw material incoming quality abnormality early detection via method of enhanced management about both supplier manufacturing process abnormality handling method and customer side raw material incoming performance warning limit setting to reduce foundry manufacturing risk.