Indonesia is set to ban some exports of cooking oil from April 28 due to a domestic shortage, a move that could increase costs for food companies like Nestle and Unilever and lead to food inflation. This ban, affecting about 30-40% of Indonesia's total palm oil exports, is expected to exacerbate the global supply tightness in vegetable oils, caused by drought, labor shortages, and the repercussions of the Ukraine conflict. The ban could also influence the balance between food and biofuels use of vegetable oils, particularly affecting countries like India and China that heavily rely on these imports. The situation could potentially stabilize if cooking oil prices return to early 2021 levels, but there are concerns about the potential impact on soybean prices, a substitute for palm oil.