Answer:
Great Britain.
Explanation:
Independence and the end of Spanish rule in Latin America was a very beneficial event for the British Empire, which had not been able to impose itself as the dominant power in that part of the planet.
Thus, with the end of Spanish rule, the monopoly of this nation over raw materials and Latin American markets also ended, with which, from the independence of these territories, European nations were able to access trade in this region. Of all the European nations, the one that benefited the most was Great Britain, as it was the only one that did not have serious internal conflicts at the time of Latin American emancipation.
Thus, Great Britain began to establish different commercial delegations in Latin America, mainly in the Rio de la Plata region and Central America.