Latin America is becoming a focal point in great power strategic competition. While the United States is reasserting its focus on the region, its influence remains relatively limited, and other economies have already established deep footprints there. Taking port control as an example, a certain Eastern major power has been involved in 37 port projects in Latin America, holding majority stakes in 17 of them. These key hubs directly impact global trade flows. More notably, there is the underlying financial logic—providing financing to Latin American countries through RMB-denominated loans to help them repay IMF debts with SDRs (Special Drawing Rights). This is an important step in the strategy of currency internationalization. The Quellaveco port project in Peru is a typical case, representing the deep integration of commercial routing and financial settlement systems. In this process of reconstructing global economic corridors, port control, trade settlement currencies, and infrastructure investment rights have become more direct tools of influence than traditional geopolitics.