Molycorp (MCP) pops 6.4% premarket, encouraged by news China is tightening controls on rare...

|By:, SA News Editor

Molycorp (MCP) pops 6.4% premarket, encouraged by news China is tightening controls on rare earth exports. The shares could use a lift after falling by 35% over the past few sessions on word the prices of rare earth minerals are falling.