HONG KONG (AP) — Asian stocks were trading higher tracking Wall Street gains and oil fell on Tuesday as expectations rose over a possible second round of talks between the U.S. and Iran on an end to the Iran war . Tokyo’s Nikkei 225 was up 2.4% to 57,842.72. South Korea’s Kospi jumped 3.4% to 6,004.30. Hong Kong’s Hang Seng rose 0.4% to 25,759.75, while the Shanghai Composite index climbed 0.6% to 4,010.45. China on Tuesday reported worse-than-expected export growth of 2.5% in March for the