Trading in Stock Market, Currency or Commodity markets is risky and there is every chance of losing money. One should only trade with a small portion of his or her money which he can afford to lose. Never put all your money in trading and never borrow money to trade.
You are requested to check the content with the respective exchanges and see if the contracts are traded there or not as we might have updated our content long time back. Our content on commodities was updated around 10 years ago and the same has been copied here as we have made the new site in wordpress. So please do check the content.