Posco ( PKX) is the largest steel producer in South Korea and one of the largest in the world.

FORBES: 10 Metals Stocks With Big Rebound Potential

According to the ETF Finder at ETF Channel, PKX makes up 7.92% of the Steel ETF ( AMEX: SLX )which is trading relatively unchanged on the day Monday.

FORBES: POSCO Stock Getting Very Oversold

According to the ETF Finder at ETF Channel, PKX makes up 7.65% of the Steel ETF ( AMEX: SLX )which is trading lower by about 2.8% on the day Wednesday.

FORBES: Shares of PKX Now Oversold