China stocks close lower Monday GMT 08:24 2012 Monday, 17 September Last Updated: 09:07:40 GMT Beijing - XINHUA Chinese stocks closed lower on Monday, as the benchmark Shanghai Composite Index dipped 2.14 percent, or 44.91 points, to close at 2,078.50. The Shenzhen Component Index closed at 8,483.69, down 2.93 percent, or 256.36 points.