We attribute this to rising paper prices, a key raw material.

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Apatite, a phosphate, is a key raw material of some fertilisers.

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But unlike other alternative energy sources, such as sun or wind power, there's nothing fickle about the availability of the key raw ingredients--fresh water and sea water.

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Brewers, further hit by higher costs for key raw materials and packaging, and price deflation in the supermarket sector, are joining together to achieve economies of scale.

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On the cost front too, we believe the company will continue to experience pressures despite the falling price of guar gum, a key raw material used in hydraulic fracturing.

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The wounds left by the closure of key facilities at London hospitals are still raw.

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No, the key ComScore number is going to be the raw sales of Windows Phone 8 handsets such as the Nokia Lumia 920 and the HTC Windows Phone 8X in November and December.

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However, Belarus has been able to overcome some of these economic difficulties due to its key location as a transit route for the raw material transported between Russia and other former Soviet Republics to Western Europe, and to large Russian subsidies.

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At the same time, big infrastructure projects, another key driver of China's growth, have driven up demand for raw materials from resource-rich countries such as Indonesia.

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