Samsung Electronic's ticker is listed on the KOSPI as 005930. That's the Korea Stock Exchange (Koscom).
Not what you were thinking? Samsung is not traded in the U.S. on the NYSE or AMEX. That's why you don't see a "familiar" ticker in the answer. You want a piece of that company, you'll have to get a broker to buy in for you on the Korea Stock Exchange. Oh, and Samsung is in for some "realignment" following some heavy duty accusations of tax evasion and an indictment of Samsung Group Chairman Lee Kun-hee. There is also the word on the street that Samsung held a large "slush fund" and used it for bribery to advance their position and market share. The wise person would do some research before plunking down any cash.