Recuperating the vessel will be extremely challenging given the depth and the kind of seabed upon which it is resting.
Argentina's ARA San Juan submarine disappeared a year ago about 430km off the country's Atlantic coast with 44 crew members on board.
The 66-metre vessel was located on Friday by a remote-operated submersible from Ocean Infinity, a US-based seabed exploration company, in waters off the Valdes Peninsula in Argentine Patagonia, about 600km from the port city of Comodoro Rivadavia.
Relatives of crew members have demanded a quickly recovery of the remains of their loved ones, and an investigation into the sinking to prevent similar tragedies.
However, the government said on Saturday that it was unable to raise the vessel due to the country's lack of "modern technology".
The submarine, which has imploded and broken into piece due to water pressure, is lying at the depth of 907 metres, making a recovery mission extremely challenging.
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