Core tip: According to a foreign media report on January 31, as of the week ending January 30, 2026, global oilseed prices mostly declined, mainly due to the continued upward adjustment of Brazil's abundant soybean production estimates, as the pace of its harvest accelerates, and market doubts about the prospects of China's continued purchases of U.S. soybeans. However, persistent high temperatures and drought in parts of Argentina threaten soybean yield potential, and a significant rise in international crude oil prices, along with a sharp drop in the U.S. dollar index, provide potential support to the oilseed market.