Aluminum Corp. of China, the nation’s biggest producer of the metal, appointed former executive Xiong Weiping as chairman, replacing Xiao Yaqing who helmed the country’s largest overseas acquisition.

The appointment of Xiong, 52, was announced last week to the board of Chinalco, as the Beijing-based company is known, according to an industry official who declined to be identified because the information isn’t public yet. Xiao, 49, will also step down as chairman of listed unit Aluminum Corp. of China Ltd., or Chalco. No date was given for the moves.

Xiong returns after a two-year absence as state-owned Chinalco ponders increasing its holdings in Rio Tinto Group, the world’s third-largest mining company, on top of its initial 9% stake bought last year. The 7.2 billion pound ($16.7 billion) investment has lost 67% of its value as metal prices plunged.

“Xiao helped Chinalco strengthen its position among China’s resource companies and improve its market recognition,” said Helen Wang, a Shanghai-based analyst with DBS Vickers. “It’s a strategic move for China to invest. The current market turmoil is unpredictable.”

Chalco rose 6.7% in Shanghai trading and surged 5% to HK$US4.29 in Hong Kong as aluminum prices climbed. Still, the Hong Kong stock is little changed from June 8, 2004, when Xiao was named as chairman, compared with a 12% gain in the Hang Seng Index.

Chalco’s board secretary Liu Qiang and investor relations manager Zhang Qing couldn’t be reached for immediate comments.

Mining doctorate

Xiong, who holds a doctorate in mining from Central South University in Changsha, Hunan province, is currently vice chairman and general manager of China Travel International Investment Hong Kong Ltd. He joined Chalco in 2000 and was president of the listed unit between 2004 and 2006.

The Hong Kong Economic Times today said Xiao may step down as chairman of Chalco and be replaced by Xiong, citing an unidentified official at the State-owned Assets Supervision and Administration Commission of the State Council.

Under Xiao, Chinalco bought the 9% stake in London- based Rio Tinto with Alcoa Inc. in February last year to become its largest shareholder. At that time, Xiao said buying Rio would help the Chinese company diversify into other commodities. He flew to London to meet investors and Australia to reassure the government over Chinalco’s intentions.

China is the world’s largest metal consumer.

Initial talks

Since Chinalco’s purchase, BHP Billiton Ltd. pulled out of a bid for Rio Tinto, which is now struggling under $US38.9 billion ($59 billion) of debt as the global recession led to plunging commodity demand. Rio on Feb. 2 said it was in talks to sell stakes in assets and convertible debt to Chinalco. Chinalco said it was in “initial talks.”

“The major question for Chinalco now is the source of financing,” said DBS’s Wang. “We think Chinalco is likely to get financing from the State Development Bank. A further investment in Rio Tinto reflects the national interest.”

The changing of the guard also comes as Rio Tinto Chairman-elect Jim Leng quit less than a month after he was named to replace Paul Skinner. Rio Tinto today announced the departure without giving a reason. Leng clashed with Chief
Executive Officer Tom Albanese over Chinalco’s investment, the Financial Times said today.

Rio Tinto may announce the investment details on Feb. 12, the Sunday Times said, without citing anybody.

Xiao, who joined Chinalco in March 2002, had also led the purchase of Peru Copper Inc for $US860 million and acquired 49% of Yunnan Copper Group Co., China’s third-largest producer, in 2007.

During Xiao’s tenure at Chalco, profit rose 65% to 10.2 billion yuan ($2.3 billion) in 2007 compared with 2004.

The company said on Jan. 22 that 2008 profit dropped more than 50%, without giving details.

Aluminum futures in Shanghai plunged 35% last year forcing Chalco and rivals to shut production as demand dropped.