Kazakhstan has introduced an oil export duty as part of a strategy to extract more taxes from the country's lucrative natural resource industries to compensate for a slowdown in other areas of the economy, reports Isabel Gorst in Almaty.

The $109.81 (€71, £56) per tonne oil export tax came into force at the weekend, said Bolat Zhamishev, the Kazakh minister of finance. A decision on an export duty on metals is expected soon.