Junior-listed AIM shares close flat, lagging the FTSE Small Capindex and the midcaps, which notch up respective gains of 0.5percent and 0.6 percent, but outperforming the blue chips, down 0.3percent.
Arian Silver Corporation jumps 15.2 percent in volume around 1-1/2times its 90-day average after it says that good progress is being made on therefurbishment of a processing plant in Mexico.
"Operating its own mill will allow the Company to significantly reduce thecosts of production and improve silver recoveries, enhancing the project'seconomics," analysts at Northland Capital write in a note.
"The refurbished plant also allows Arian to increase production levels bythree times that of each of the company's toll milling operations, once itreaches its maximum capacity of 1,500 (tonnes) per day."
Good Energy closes 0.6 percent higher after it announces that itsHampole wind farm in South Yorkshire has begun to generate electricity.
"This is encouraging news as the site has begun generating power quickerthan we had expected (June 2014)," analysts at N+1 Singer write in a note.
"The company has now almost doubled the volume of renewable power generatedby its own sites, and takes it a step closer to reaching the goal of generating50 percent electrons by 2016."
Reuters messaging rm://alistair.smout.thomsonreuters.com@reuters.net