Hanoi is facing intense heat waves, driving up the demand for cooling fruits at Ms. Nguyen Thi Nhung's stall. Local fruit prices, such as oranges, have surged, while imported Australian tangerines have become very cheap, even cheaper than Vietnamese oranges. The sweet taste and affordability of these tangerines have made them popular among customers, leading to high sales volumes for sellers like Ms. Nhung and Ms. Dao Thi Yen, with Ms. Nhung selling 70-80kg daily. The influx of smaller, sea-transported Australian tangerines has caused their prices to drop despite the high demand.