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China's Chalco says executive resigns amid probe by authorities

HONG KONG, Nov 19 (Reuters) - Aluminum Corp of China Ltd (Chalco) , the country's biggest aluminium producer, said on Tuesday its vice president had stepped down amid an investigation by authorities, the latest Chinese company to be hit by a scandal.

Li Dongguang is also president of Chalco's trading unit, which sells aluminium and alumina, although the company did not say if he had also resigned from that position and it did not immediately respond to a request for comment.

Chinese authorities have launched a series of investigations into executives in sectors ranging from shipping to energy, with PetroChina, Asia's largest energy company by market value, among the highest profile to be targeted so far.

Shares of Chalco closed down 1.7 percent on Tuesday, lagging a flat overallmarket.

On Monday, retail-to-property company Hit Shouchuang and toll road operator Anhui Expressway said authorities were investigating executives from both firms as the government seeks to crack down on graft and other malpractices.

Chinese President Xi Jinping has made fighting corruption a top priority since he took over as leader.

Beijing stunned the energy industry in late August and early September with announcements that five former top executives at PetroChina and CNPC were being investigated for "serious discipline violations", shorthand generally used to describe graft.

(Reporting By Polly Yam and Anne Marie Roantree; Editing by Ron Popeski)