Failed retailer Yaohan Hongkong Corp will be delisted from the stock exchange on September 15 unless it submits a trading resumption proposal to the regulator. The stock exchange said yesterday it would give the company a final six-month period to tender 'a valid resumption proposal' or it would cancel the company's listing. It said Yaohan was being liquidated and that its subsidiaries were not expected to see significant recovery of assets.