Clifford Chance (CC) and Allens Arthur Robinson have taken lead roles on a joint venture between two of the world's largest metals producers, reports The Asian Lawyer.

Aluminum Corp of China (better known as Chinalco) and British-Australian mining giant Rio Tinto Group have agreed to enter into an exploration venture to find new mineral deposits in China. The venture will initially focus on copper, with the potential to expand to coal and potash.

Chinalco was advised by CC, with London partner Kathy Honeywood (pictured) leading the magic circle firm's team. Chinalco will have a 51% ownership of the joint venture, Chinalco Rio Tinto Exploration Co. The deal was formalised last Wednesday (1 June) and is subject to regulatory approvals.