JOINT ANNOUNCEMENT DELAY IN DESPATCH OF COMPOSITE DOCUMENT IN RELATION TO POSSIBLE UNCONDITIONAL MANDATORY CASH OFFERS BY ZHONGTAI INTERNATIONAL CAPITAL LIMITED AND WELL LINK INTERNATIONAL CAPITAL LIMITED ON BEHALF OF THE OFFEROR TO ACQUIRE ALL THE ISSUED SHARES AND ALL OUTSTANDING CONVERTIBLE NOTES, AND TO CANCEL ALL OUTSTANDING SHARE OPTIONS, OF QUALI-SMART HOLDINGS LIMITED (OTHER THAN THOSE ALREADY OWNED OR AGREED TO BE ACQUIRED BY THE OFFEROR AND PARTIES ACTING IN CONCERT WITH IT)

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