Updates to market close

SHANGHAI, July 3 (Reuters) - Hong Kong shares closed down on Thursday, led by tech stocks, as investors fretted that intensifying competition among e-commerce giants could squeeze profit margins.

China stocks ended higher.

** China's blue-chip CSI300 Index .CSI300 closed up 0.6%, while the Shanghai Composite Index .SSEC was 0.2% higher. Hong Kong benchmark Hang Seng .HSI was down 0.6%.

** E-commerce giant Alibaba 9988.HK shares listed in Hong Kong fell nearly 3%, leading declines in Hong Kong, after the company announced a 50-billion-yuan ($6.98 billion) subsidy programme to merchants and customers on Wednesday.

** "Alibaba's plan to offer $7 bn of subsidies for food delivery and online retail implies competition is heating up again among China e-commerce companies," said UBS analysts.

** Shares of on-demand delivery giant Meituan 3690.HK dropped 2.5%, while JD.com 9618.HK fell 2.1%.

** Meanwhile, a prominent Chinese Communist Party publication called for a crackdown on competition that fuels price wars and squeezes profits in various industries, criticising large companies and local governments for unfair practices.

** China's services activity expanded at the slowest pace in nine months in June, as demand weakened and new export orders declined amid a fragile trade truce with the United States, a private sector survey showed on Thursday.

** China's semiconductor shares .CSIH30184 were little moved after U.S. chip design software developers said they have received notices lifting restrictions on exports to China.

** China is assessing the trade deal between the United States and Vietnam, and will safeguard its own rights and interests if needed, a spokesperson for China's commerce ministry said on Thursday.

** Healthcare shares .CSIHCSI led gains onshore, up 1.2%, as Beijing ramped up policy support for the country's innovative drugs.

** Biotech stocks also rose in Hong Kong, with Ascentage 6855.HK up 6.2%.

($1 = 7.1643 Chinese yuan renminbi)

(Reporting by Shanghai Newsroom; Editing by Vijay Kishore)

((li.gu@tr.com))