[DISCLOSURE] Doosan Infracore (042670) reported on July 18 that its operating profit in the second quarter jumped 126.8 percent to 173.5 billion won (US$152.62 million) from the same period last year. Its revenue stood at 1.62 trillion won, a 0.2 percent slip, while its net profit surged 2246.5 percent to 223.7 billion won.