The four shipyards are the Royal Guanizuo Shipyard, Cuba Havana Shipyard, El Ferrol Shipyard, and Cartagena Shipyard.
Compared to these four major shipyards, any other civilian shipyard lags significantly, both in terms of scale and the level of attention from the government.
Among them, the Cuba Havana Shipyard is the most unique of the four, as it is located in Havana in the Cuban Colony, and is the only large overseas shipyard of Spain.
Unfortunately, the Havana Shipyard was damaged during the independence movements in the American Colonies. Although the Spanish Government later rebuilt the Havana Shipyard, since most of the American Colonies had been lost, there was no longer a need for such a large shipyard in America.
This shipyard, which once could build large sailing warships, has gradually become the lowest tier among the four major shipyards, and is not on the Spanish Government's list for future development in naval shipbuilding.
