SHANGHAI, Feb 28 (Reuters) - Hong Kong equities fell on Friday, and were set to snap a six-week winning streak, as U.S. President Donald Trump announced fresh tariffs on Chinese imports and investors booked profit on tech stocks.

** Hong Kong's benchmark Hang Seng .HSI slipped 2.3%. Chinese shares also fell, with the blue-chip CSI300 Index .CSI300 dropping 0.8% by the lunch break and the Shanghai Composite Index .SSEC losing 0.9%.

** Trump on Thursday announced a 10% duty on Chinese imports on top of the 10% tariff that he levied on February 4, taking the cumulative tariff to 20%.

** "Trump's cabinet, especially the members in charge of foreign and trade policies, has exhibited a staunchly hawkish stance towards China," said Ting Lu, chief China economist at Nomura.

** "Nothing is said more clearly than Secretary of State Marco Rubio' remark: 'China is the most potent and dangerous near-peer adversary this nation has ever faced'."

** Lu expected tensions between the two mega economies to worsen significantly, especially as China continues to make large strides in high tech, including in AI and robotics.

** The Hang Seng Index was set to decline 1.3% for the week, after six weeks of gains, as investors took profit on the tech rally.

** "The market could use Xiaomi's product launch event and Tencent's new AI launch as catalysts for further profit taking in HSTECH names on Friday," UBS analysts said.

** Tech majors traded in Hong Kong .HSTECH slid nearly 4% on the day, after surging nearly 30% this year.

** AI shares traded onshore .CSI930713 shed 3.5%.

(Reporting by Shanghai Newsroom; Editing by Sumana Nandy)

((li.gu@tr.com))