Spreadable cheese under the Primula brand was introduced to the British market in 1929, following its development in Norway as one of the world’s first long‑life cheese spreads.

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Today, Kavli UK operates through two main brands: Primula and Castle MacLellan. The company’s headquarters and Primula production site are located in Gateshead, where cheese spreads for the British market are produced. Castle MacLellan is based in Kirkcudbright, Scotland, producing pâtés and cheese bakes. Together, the two sites represent Kavli UK’s local manufacturing presence in the United Kingdom.