At present, the price of thermal coal for 4500 kcal in Heilongjiang is around 330-340 (pit price, no invoice), 5000 kcal is around 420-430, 5500 kcal is around 500, and 6000 kcal is around 580 yuan.
As for the price trend of Heilongjiang coal price in the coming year,
Every time the calorific value of bituminous coal decreases by 100 kcal, the price decreases by 20 yuan.