Dalian Commodity Exchange: 1No. soybean code: A 2 soybean code: B soybean meal code: M corn code: C soybean oil code: Y plastic: L palm oil: P contract format (taking soybeans as an example) is as follows: soybean contract for delivery in September 2007: A0709 Zhengzhou Commodity Exchange: white sugar code: SR strong wheat code: ws cotton code: CF PTA (fine pair Code: TA rapeseed oil: AO contract format (taking sugar as an example) is as follows: sugar contract delivered in September 2007: SR709 Shanghai Futures Exchange: copper code: CU aluminum code: AL natural rubber code: RU fuel oil code: Fu zinc code: ZN gold code: AU contract format (taking copper as an example) is as follows: copper contract delivered in September 2007: CU0709 China Finance. Institute: Shanghai and Shenzhen 300 stock index futures code: IF contract format is as follows: Shanghai and Shenzhen 300 contract delivered in September 2007: IF0709 (Southern Fortune Network Futures Channel).