Broadly speaking, all coal used for power generation, locomotive propulsion, boiler combustion and other purposes. It belongs to power coal, referred to as power coal for short. The quality of coal used in thermal power plant is very important for boiler design and production process. Generally speaking, coal suitable for boiler combustion and generating heat is called power coal. For example, for the purpose of power generation, locomotive propulsion and boiler combustion, coal used for power generation belongs to thermal coal, which is referred to as thermal coal for short.

The main value of coking coal is the main contract of coking coal futures trading at present, which is usually called the main contract with large trading volume and activity. All commodity futures codes are followed by M, which is the main contract of this variety at present.

Calculation method and margin calculation format of coking coal futures: current market price * contract unit * margin ratio Coking coal futures are coal energy commodities listed on Dalian Commodity Exchange.

Details of coking coal commodity futures contract: code jm, 60 tons per hand, minimum fluctuation price 0.5 yuan/ton, coking coal futures fluctuation 30 yuan, exchange standard margin 1 1%. Current price margin of first-class coking coal futures: 2000 * 60 *11%=13200.

Deposit calculation format: current market price * contract unit * deposit ratio.