The South is a region where there is not enough electricity and electric rate increases more than other regions o.k. And import the required coal transport ship.
South is a region that has the power not enough to meet demand. And a power consumption rate increased more than other sectors have. And coal imports that require ships to transport.
The southern region with electricity generating capacity is not enough demand. And the rate of electricity increased more than other regions. And imports of coal without ships to transport.