In Thai Nguyen province's Vo Nhai district, farmers in Trang Xa commune face significant challenges as the pumpkin crop, usually a profitable venture, sees a dramatic decrease in both yield and selling price. The crop size has been reduced by half from the previous year, and prices have plummeted to a quarter of the normal rate. This is attributed to the economic impact of the Covid-19 pandemic and an increase in pumpkin production in other regions, leading to an oversupply in the market. As a result, farmers are struggling with significant financial losses and are finding it difficult to sell their crops. Authorities suggest that adding traceability stamps to agricultural products can help improve their marketability and ensure their presence in supermarkets nationwide.