 Export sales of old crop corn in the weekend of July 4 totaled just over 538,000 metric tons, and new crop sales totaled 116,500 metric tons, both in line with expectations. Colombia topped the list of old crop buyers, and Mexico accounts for the bulk of the new crop sales. Buying interest in corn was limited by news. Conab increased its Brazilian corn crop estimate 1.7 million metric tons to 115.9 million metric tons.