In this paper, it is examined whether improvement in the supply chain performance of Korean manufacturing industries in the 2000’s can be identified from financial data. 20 industries classified into the manufacturing category according to the Korean Standard Industry Classification (KSIC) were selected, and three indices suggested in the SCOR model were analyzed: inventory turns, cash-to-cash cycle, and gross margin. Despite industry wise differences, generally large companies showed better performance than small and medium sized companies. The trend of improvement was not clearly identified in many industries. The degree of variation among the industries suggests that some previous studies on supply chain performance need to be reconsidered if they regarded manufacturing industry as a single homogeneous group. Generally observed negative correlation between inventory turns and gross margin seems to indicate that theoretically suggested supply chain strategies were adopted by many Korean manufacturing industries in the 2000’s.