1. Lower costs: Sea and river water transportation is usually cheaper than land or air transportation. This is because the cost of maintaining ships is lower than that of motorized vehicles, and also because the cost of fuel is lower than that of aircraft fuel.
2. Higher capacity: Ships used for sea and river water transportation usually have a higher capacity compared to motorized vehicles or aircraft. This allows more coal to be shipped at one time, resulting in lower costs per tonne of coal shipped.
3. Accessibility: Sea and river water transportation can access areas that are difficult to reach by land transportation, such as rural or mountainous areas. This allows coal from these areas to be transported to the Loading Coal port or to customers in remote locations more easily.
4. Lower environmental impact: Sea and river water transport usually has a lower environmental impact compared to road transport. This is because the emissions of greenhouse gases and air pollution produced by ships are lower than those produced by motorized vehicles.

Overall, sea and river water transportation is an efficient and environmentally friendly way to transport coal from the mining area to the Coal Loading port or to customers in remote locations. Therefore, sea and river water transportation is an important part of the coal industry.