Britain's small cap equity indexes rise in early session trade to outperform gains on the blue-chip index.
The FTSE Small Cap Index is up by 0.3 percent, while the FTSE AIM All Share Index rises 0.4 percent, outperforming a 0.2 percent rise on the blue-chip FTSE 100 index. The FTSE 250 mid-cap index, which hit a record high earlier this month, also rises by 0.2 percent.
Mining company Metminco rises 27.3 percent after the company says work undertaken at its Los Calatos site shows increased production rates.
Caza Oil & Gas also surges 20 percent higher after the energy company announces positive results at its Caza Ridge Bone Spring well in New Mexico.
Pawnbroking, payday loans and gold selling company H&T Group slumps 12 percent after posting lower interim profits, with its earnings impacted by a drop in the price of gold.
"H1 results are significantly below our expectations," analysts at N+1 Singer write in a research note, adding that they will be reviewing their forecasts on the company.
Reuters messaging rm://firstname.lastname@example.org