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Business Overview Our Strengths Production Process
Mining Area

The underground mining area is divided into a northern and southern mining district, as defined by a dividing line through the underground bin of the main roadway. The area to the north is referred to as the No. 1 Mining District and the area to the south is referred to as the No. 2 Mining District. From a pit bottom facility, a system of three main headings has been developed to provide access to the longwall gate roads, the coal haulage conveyor, mine employees and materials and to provide ventilation. The belt, rail, and ventilation headings are separately deployed in No. 5, No. 6 upper and No. 6 coal seams. The set of three main headings are being planned to access all areas of No. 1 Mining District. Longwall panels run off the main headings through link roadways to access all coal seams.

Coal Mining

In the Dafanpu Coal Mine, there are four mineable coal seams. From top to bottom, they are the Nos. 5, 6upper, 6, and 9 seams. The mining of the seams is in sequential order from top seam to bottom seam. Coal is mined from the Dafanpu Coal Mine in one pit, using underground mining methods. We use two different techniques: longwall mining and longwall top coal caving. Longwall mining and longwall top coal caving methods generally use mechanised hydraulic roof supports (shields) and a shearer to mine the coal. We use road header units to extract coal from the development roadways.

The longwall mining method is suitable for the No. 5 and No. 6upper seams. A longwall mining system is a high production mining method which utilises a shearer to cut coal across a mining face. Longwall faces can vary from 30 to 400 metres in width and one to five metres in height. In longwall mining, rotating cutting drums are dragged mechanically across the face of the coal seam to cut or “shear” the coal, which is subsequently loaded onto a chain conveyor. During the shearing process, the roof of the mine is supported by a system of hydraulic powered roof supports (shields). Chain conveyors haul the mined coal to an underground mine conveyor system for transport to the surface.

Coal handling and stockpiling

We transport coal from the working faces underground via a network of conveyors leading to a main inclined drift conveyor. The network of conveyors is used to remove coal from the working faces in the gate roads and development districts, which are then delivered to the surface stockpile.

Coal processing and blending

From the mine, a surface conveyor belt transports the coal to our coal screening plant, where it is screened and split into lump coal and fine coal. The lump coal is directed to the lump coal stockpile and sold as a raw unwashed product and the fine coal is washed. Both lump coal and fine coal can be used as thermal coal. The coal washing plant separates impurities from coal, which improves the quality and energy value of the coal. Processing requires additional expense and results in loss of some coal, but higher sales prices can be sought for the processed coal product.

Additionally, coal of varying energy value, sulphur and ash content from Dafanpu Coal Mine and coal mines of third parties can be mixed or “blended” at our coal washing plant in our concession area to meet the specific combustion and environmental needs of customers. Coal blending helps increase profitability by reducing the cost of meeting the quality requirements of specific customer contracts, thereby optimising contract revenue.

Loading and transportation

Our lump coal and fine coal is transported by railway to the market in Qinhuangdao via Xiaojia Station, whilst slimes and rejects can be sold locally in Inner Mongolia.