Debt-ridden retailer Zhengzhou Baiwen Co on Thursday said the trading suspension on its shares has been extended until August 27 upon its request, so it can to complete a share transfer vital to its survival. In a notice in Shanghai Securities News, Zhengzhou Baiwen said the share transfer, which was supposed to be completed by June 30, was stalled because the clearing and settlement agency of the Shanghai Stock Exchange refused to transfer the shares due to the lack of necessary documents.