The cu0411-cu0503 contract was adjusted for an up/down limit of 5%; cu0504 - cu0508 contract was 4%; and the cu0509 contract was 3%. Al0411, al0502, al0505 contract is 3%; al0504 contract is 4%; al0412, al0501 contract to resume trading, in accordance with trading rules, the next trading day two contracts up / down limit of 8%. Source: China International Futures Brokerage Co., Ltd.