Winners & losers (March 18)

Winner Samsung Electronics

, the world’s top smartphone manufacturer, unveiled its latest smartphone Galaxy S4, the latest of its flagship Galaxy S line-up, in a show at Radio City Music Hall in Manhattan, New York, Thursday.

The launch of Samsung’s new gadget is expected to bolster the company’s dominance of the global market.

In the show, it introduced the Galaxy S4 with improved hardware including a 5-inch (12.7-centimeter) full HD Super AMOLED display and an octo-core processor, as well as user experience features that enable face, motion and voice commands.

IT analysts projected Galaxy S4 sales to reach about 70 million this year, making it the company’s best-selling phone.

Loser

Global credit ratings firms Standard & Poor’s and Moody’s said Wednesday they are considering downgrading the credit rating of

KORAIL

, Korea’s state-run railway operator.

The move came after Dreamhub, the main mover in the 32 trillion won ($28.4 billion) Yongsan development plan, defaulted. KORAIL holds 25 percent of the shares of Dreamhub.

Moody’s said it is reviewing the downgrade of KORAIL’s credit rating which is currently A1 since the company is estimated to face an aggravated capital structure.

Standard & Poor’s added that the Korean government’s bailout for the financially-troubled railway operator is expected to determine KORAIL’s capital financing capability.