The FTSE 100 is up 22 points, or 0.34%, to 6,559.8 in early trading, as the mining sector pushes the index higher on rising commodity prices.
Lonmin has gained 4.03% to 337.66, closely followed by Rio Tinto which has advanced 3.79% to £32.83, while BHP Billiton has climbed 3% to £12, although Reuters Group is posting the biggest gains with a rise of 5.84% to 521p.
Hanson is also performing well with gains of 4.49% to £10.71, following reports of a possible bid form HeidelbergCement, although gains are being limited by BG Group which is down 1.19% to 746p.
Insurer Standard Life is currently the biggest loser with a fall of 1.26% to 332.5p, closely followed by Resolution which is down 1.12% to 660.5p, while Drax has slipped 1.02% to 774p, and British Airways has fallen 0.88% to 507p.
In the US, the Dow Jones Industrial Average climbed 29.5 points, or 0.22%, to 13,241.38, as a report on unit labour costs grew at a weaker than expected 0.6%.
Verizon Communications posted the biggest gains with a rise of 3.71% to $41.07, closely followed by Microsoft which added 1.18% to $30.97, while American Express gained 1.15% to $63.46.
Exxon Mobil added 1.08% to $80.68, while Pfizer climbed 1.02% to $26.87, although gains were limited by United Technologies which declined 0.69% to end the session at $67.93.
General Motors was the biggest loser with a fall of 5.39% to $30.69, closely followed by Procter & Gamble which slipped 0.59% to $62, while 3M Company dropped 0.41% to $84.07, and Intel declined 0.36% to $21.74.
In Japan the stock markets were closed for a national holiday.
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