This paper provides an initial assessment of the shipbuilding industry in the context of global value chains by presenting new descriptive evidence on value added generation and sourcing patterns of intermediate inputs for ship construction of major shipbuilding economies. The findings reveal that shipbuilding relies heavily on intermediate inputs as around 70-80% of the final output value of ship production is generated through supplier sectors. Concerning sourcing activity, China appears to be the most self-sufficient among the four jurisdictions studied, followed by Japan and the EU28, while Korea seems to be more globally integrated. The analysis also explores variations among the four economies in the cost structure of shipbuilding inputs, which might partly be explained by differences in the ship types produced.