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Samyoung Machinery Co., Ltd. is a world leading company in locomotive and marine diesel engine industry. Over 39 years of experience and lots of accumulated knowledge in the industry enables Samyoung to have world-highest productivity and price competitiveness accompanied by high performance and environment-friendliness.

Samyoung’s customers are all around the world including top-ranking domestic companies such as KORAIL, Hyundai Heavy Industries Co., Ltd., STX engine, and Doosan engine.

One of Samyoung's key characteristics is extensive vertical integration. Samyoung has all the major processes in house to manufacture diesel engine parts and engine assembly, for instance, design, analysis, casting, machining assembly and quality control (testing/inspection). This vertical integration is very rare in diesel industry and gives Samyoung an easy access to accomplish performance improvement, environmental issues and lower price in a short period of time.

Samyoung’s optimized redesign technology driven by the state-of-the-art engineering enables you to upgrade your diesel engine to an eco-friendly engine, to improve the power of your engine, to maximize the efficiency of your engine by reducing fuel and oil consumption, to make your engine a trouble-free engine."