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Albemarle Corporation press release

Market Regulation Services - Trade Resumption - Mexican Silver Mines Ltd. (formerly Premier Diamond Corp.) - MSM (PDC.H)

NYSE - New York Stock Exchange · Lithium · Kaolin · Potash · Sodium · Bromine · Sulfur · Aluminium · Magnesium · Nickel · Cobalt · United States

VANCOUVER, May 11 /CNW/ - Trading resumes in:

Issuer Name: Mexican Silver Mines Ltd. (formerly Premier Diamond Corp.)

TSX-V Ticker Symbol: MSM (PDC.H)

Resumption Time: Monday, May 14, 2007 - 9:30AM EST

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