When did the Egyptians took control of the Nubian trade?

The Egyptians took control of Nubian trade around the early Middle Kingdom period, approximately during the 20th century BCE. This control was solidified as Egypt expanded its influence southward into Nubia, establishing trade routes and exploiting the region's rich resources, particularly gold. The Egyptians sought to secure these trade networks to enhance their economy and power. By the New Kingdom period, this control was even more pronounced, with military campaigns and the establishment of fortresses in Nubia.