Air China (HKG:0753) said Ma Chongxian had resigned as the company's chairman, according to a Hong Kong bourse filing Friday.
Shares of the airline company fell over 4% in midday trade Monday.
Ma confirmed he had no disagreements with the company's board and that there were no matters that needed to be disclosed to shareholders, the company.
The company appointed Liu Tiexiang as its new chairman.
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