China A-shares finished the morning session sharply lower as resources stocks slumped on persistent worries that a slowing global economy will reduce demand for raw materials. The benchmark Shanghai Composite Index ended the morning down 68.82 points or 3.44% at 1,931.75. The Shanghai A-share Index was down 72.22 points or 3.44% at 2,029.07, while the Shenzhen A-share Index fell 23.74 points or 4.25% to 534.60.