Klaveness Combination Carriers (KCC) has announced a big import contract of affreightment (COA) deal with Aluminium Bahrain (Alba).

The company’s wet and dry cargo vessel will bring alumina into the country from Australia over four years, the Oslo-listed owner said.

No financial terms have been revealed, but the shipments will begin this year, continuing the longstanding and close cooperation between Alba and KCC.

The Norwegian company’s chief executive Engebret Dahm said Alba had been working with the Klaveness group for more than 30 years.

The deal involves both the caustic soda Cabu ships and the oil product Cleanbu carriers on dry cargo legs.

Alba CEO Ali Al Baqali said: “Keeping together is progress and working together is success. We are delighted to have renewed our partnership with KCC for an additional four years. This speaks volume of the strong ties which both of us have developed over the last three decades.”

KCC has eight Cabus and eight Cleanbu ships.

Alba started out with a 120,000-tonnes-per-year smelter in 1971.

Today the group is the world’s largest aluminium producer outside of China with an output of more than 1.56m tonnes each year.

Alba is dual listed on the Bahrain Bourse and London Stock Exchange.

Its two biggest shareholders are Bahrain Mumtalakat Holding Company with 69.38% and SABIC Industrial Investments Company (SIIC) on 20.62%.

In January, KCC said it had clinched a long-term deal to carry caustic soda for Australian mining and metals company South32.

The combination carrier owner signed a six-year COA for shipments on its Cleanbus from South32’s Worsley Alumina refinery in Western Australia.