shanghai jan 4 reuters  china and hong kong stocks fell on tuesday morning dragged down by technology shares as beijings new cybersecurity rules damp sentiment despite a rebound in property plays  chinas bluechip csi300 index csi300 fell 08 by the lunch break while the shanghai composite index ssec lost 04  the hang seng index hsi dropped 03 and the hong kong china enterprises index hsce lost 05  chinas cyberspace regulator said it would implement new rules from feb 15 that require platform companies with data for more than 1 million users to undergo a security review before listing their shares overseas read more  the hang seng tech index hstech fell 14 at the end of the morning session erasing early gains as chinas continued clampdowns on the tech sector sour market mood  tech shares also fell sharply in china the nasdaqstyle star market star50 lost 22 while the startup market chinext chinextc dropped 13  but property shares in china and hong kong rebounded sharply as the sector witnesses elevated volatility on debt repayment worries  the hang seng mainland properties index hsmpi bounced 44 in morning trade after a 28 decline on monday  cashstrapped property developer china evergrande group 3333hk said its contract sales dropped nearly 40 last year and it will actively maintain communication with creditors its hong konglisted shares which were suspended on monday will resume trading on tuesday afternoon  chinese telecommunication stocks including china telecom  china unicom 0762hk and china mobile 0941hk rose ahead of china mobiles shanghai listing on wednesday read more  china mobile sold 8457 million shares at 5758 yuan 906 each in shanghai representing a 50 premium to its hong kong share price read more