The FTSE 100 has ended the day with a fall of 12.6 points, or 0.2%, to 6,247.4, as miners extended losses.
Tate & Lyle was the biggest drag on the index with a fall of 5.48%, to 775.5p, closely followed by Cairn Energy which slipped 2.77% to £18.61, while miner Lonmin fell 2.03% to £30.88, and Vedanta Resources dropped 1.77% to 312.23.
However, losses were limited by Smith & Nephew which posted the biggest gains with a rise of 8.13% to 521.75p, closely followed by cruise operator Carnival which rose 2.2% to £25.04, while insurer Standard Life climbed 2.19% to 303p.
In the US, the Dow Jones Industrial Average is up 23.47 points, or 0.19%, to 12,468.99, in early trading.
Altria Group is posting the biggest gains with a rise of 0.88% to $85.96, closely followed by American Express which is up 0.86% to $62.17, while American International Group has gained 0.72% to $72.65.
Drug company Pfizer is also up 0.62% to $25.80, closely followed by Johnson & Johnson which has climbed 0.59% to $66.68, although gains are being limited by Boeing which is down 0.63% to $90.13.
Exxon Mobil is the biggest drag on the index with a fall of 1.62% to $76.05, closely followed by Alcoa which has slipped 1.39% to $30.61, while Du Pont is down 0.64% to $48.44, and General Motors has fallen 0.62% to $29.08.IFAonline
The increase in minimum AE contributions has had little impact on opt-out rates - with cessations after April increasing by less than two percentage points, data from The Pensions Regulator (TPR) shows.
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