You need to check each commodity or futures contract since each of them is unique.

你必需去留心每件商品或期货合同，因为它们每一份都是唯一的。

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Hedging a cash market position in a futures contract for a different but price-related commodity.

利用品种不同但价格相关性强的期货合约为现货市场的头寸进行套期保值。

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The Thai Futures Exchange introduced its first gold futures contract early this year, adding a new dimension for investors looking to reduce the risks of volatile commodity prices.

VOA: standard.2010.07.21

In February this year, we also launched the black pepper future, which was the first futures contract for the commodity.

WSJ: Managing in Asia: Hariharan; Singapore Mercantile Exchange Finds the Pulse of Commodities Trading

One last possibility: You are using commodity futures to hedge risk-for example, on taking a consulting contract for which you will be paid in British pounds.

FORBES: In The Money