Slaughter and May, Paul Hastings and Simpson Thacher & Bartlett are among a raft of firms to have advised on the $398m (£253m) Hong Kong initial public offering of Chinalco Mining Corporation International.

The company, a subsidiary of Chinalco, China's biggest producer of aluminium, is raising cash to help fund a copper mining project in Peru.

UK magic circle firm Slaughters provided Hong Kong counsel to the company, with capital markets partner Benita Yu (pictured) leading a team of four. Simpson Thacher advised on US securities aspects with a team led by corporate partner Chen Leiming.

Paul Hastings represented the joint bookrunners on the deal, which included Morgan Stanley and BNP Paribas, alongside CICC, Standard Chartered, CCBI and HSBC. The US firm fielded a team of seven led by corporate partner and Greater China chairman Raymond Li.

Peruvian law firms involved on the IPO included Rebaza Alcazar & De Las Casas Abogados Financieros, which acted for the issuer, and Estudio Echecopar, which represented the underwriters.

On the China side, Jincheng Tonda & Neal Law Firm acted for the company and Jingtian & Gongcheng advised the banks.

Chinalco Mining is a unit of state-run Aluminum Corporation of China, and the owner of the Toromocho greenfield copper deposit in Peru, the world's second-largest pre-production copper project. The IPO involved selling 15% of the company on the Hong Kong Stock Exchange, in a bid to raise funds for the project, which began construction in May 2011.