The handling fee for methanol futures trading is calculated in two cases. One is that an investor opens a primary methanol futures contract today and closes a primary methanol futures contract tomorrow, so he pays a fee of 2+2=4 yuan. In another case, this investor opened a primary methanol futures contract this morning and closed the primary methanol futures contract this afternoon. The handling fee for liquidation of methanol futures is 6 yuan, who needs to pay a handling fee of 2+6=8 yuan.

The transaction cost of methanol is "2 yuan/hand" and the transaction cost of liquidation is "6 yuan/hand", which means that the transaction cost is fixed and has nothing to do with the futures contract price.

Methanol, alias hydroxymethylmethane, has the chemical formula of CH3OH (a methyl group is connected with a hydroxyl group, usually abbreviated as MeOH). Methanol is also called wood alcohol, because methanol was once mainly produced by dry distillation of wood. Today, methanol is mainly produced by hydrogenation of carbon monoxide.