ClearSign Combustion shares jump on milestone announcement

|About: ClearSign Combustion Corp. (CLIR)|By:, SA News Editor

Shares of ClearSign Combustion (CLIR +4.7%) jump after the company states that it will hold a briefing event on Sept. 10 to announce a "major milestone achievement in the reduction of NOx emissions." The call will include a roundtable with industry managers and academics.