(Telecompaper) South Korean communications provider SK Telecom posted net profit of KRW 468 billion in the second quarter, up 288 percent from KRW 121 billion in the same period a year ago, as positive earnings from SK Hynix contributed KRW 197 billion to pre-tax profits. Operating revenues amounted to KRW 4.2 trillion, an increase of 3.9 percent from the same period last year. The increase was led by the growth of LTE subscribers and new businesses including B2B services. Mobile service revenue increased 4.5 percent year-on-year to KRW 2.8 trillion, while interconnection revenues decreased 18 percent year-on-year to KRW 217 billion resulting from the adoption of lower interconnection rates and new business, and other revenues increased 48 percent year-on-year to KRW 205 billion.