** Beijing Yunji Technology's 2670.HK stock jumps 37% to HK$130.7 in Hong Kong debut, after hitting high of HK$142.8
** Chinese hospitality robotics AI firm's strong start contrasts with 0.5% slip in Hang Seng .HSI, 1.5% fall in Hang Seng Tech .HSTECH
** 2.66 mln shares worth HK$413.2 mln ($53.17 mln) traded so far
** Co raised HK$659.6 mln via 6.9 mln share global offering at HK$95.6 each for R&D, AI development
** Says Hong Kong public offering portion is 5,657x subscribed, international offering portion subscribed 18.62x
($1 = 7.7716 Hong Kong dollars)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))