Mark van Sijll of Sijlltrade explains that there is a shortage of onions due to a 10 to 15% decrease in the harvest compared to the five-year average, resulting in challenging conditions for onion cultivation. However, the onion trade with Poland is thriving, with high export volumes due to low prices and abundant supply. The onion market is currently volatile, with fluctuating prices, and Sijlltrade is actively seeking industry parties to trade various types and sizes of onions.