File photo of Sun Zhongguo, former chairman of Yingde Gases Group, at the company’s listing ceremony at the Hong Kong Stock Exchange in November 2009. Photo: SCMP

Yingde CEO plans to step down in new twist to ongoing corporate battle

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File photo of Sun Zhongguo, former chairman of Yingde Gases Group, at the company’s listing ceremony at the Hong Kong Stock Exchange in November 2009. Photo: SCMP
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