Tengzhong may buy Hummer via offshore vehicle -source

SHANGHAI, Feb 23 (Reuters) - China's Tengzhong is weighing the option of using an offshore investment vehicle to buy General Motors' [GM.UL] Hummer brand if it cannot get regulatory approval for the transaction, a source close to the deal said on Tuesday.

Chances of securing regulatory approval for the deal by Sichuan Tengzhong Heavy Industrial Machinery Co have dimmed in recent weeks, sources told Reuters earlier this month. (Reporting by Fang Yan and Jacqueline Wong)