The extension gives local farmers more time to sell their harvest, but grain traders warn that slow collections could tighten supplies before imports return.
The United States wants to grow wheat sales in sub-Saharan Africa by showing buyers the value of higher quality wheat instead of competing on price.
The country continues to expand its list of wheat suppliers while efforts to raise local grain production continue.
The new tender comes after the country made no purchase in its last wheat buying round and continues efforts to secure grain supplies.
The companies will support farmers with funding and technical help as they work to improve soil health, water quality and carbon storage across key wheat growing regions.