If this question means "Who exported gold and silver from the New World to Spain"? Then the answer is the Spanish conquistadors and Spanish explorers.
Vast amounts of these precious metals were also precious to the advanced Native American peoples in Mexico and further south. The Aztecs, Mayans and Incas all valued gold & silver.
What Spain did not steal from these civilizations were later mined, as the New World under Spain's dominion had vast mines of gold and silver.
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Yes, much of the drive behind Spain's conquest of the New World was the abundance of precious metals. They took gold from Mexico, Peru had and still has vast amounts of gold and silver, and Argentina is named for its silver (silver is called argentum in Latin).
They wanted to have glory, just as much as Spain and England. The explorers wanted to be rich with gold and silver.
To collect the gold, silver, and precious jewels.
England
They wanted to explore the world to get more knowledge about it, to get spices from Asia, and gold and silver.