Rinker Group Limited  has expanded the group’s operations in the US Pacific north-west, with the acquisition of one of the leading construction materials producers in Salem, Oregon -- the Walling Sand & Gravel companies (Walling).

Walling, a privately-owned group of companies, was established in 1940. It is the number two aggregates producer in Salem, with around 25 per cent of the local market. Walling’s West Salem quarry is the largest quarry in the region. It commenced operations in 2005 and has extensive reserves. Walling also comprises an asphalt plant and paving operation and a concrete plant
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