** Shares of Ubtech Robotics Corp 9880.HK fall 6.8% to HK$84.15, on track for the biggest one-day pct drop since April 7
** The Chinese humanoid robot producer plans sale of 30.16 mln new shares, or 6.39% of the enlarged share capital, to third party investors
** Sale to raise HK$2.47 bln ($314.66 mln) for business operation and development, and debt repayment among others
** The shares will be issued at HK$82 apiece, representing a 9.14% discount to Monday's close of HK$90.25
** Hang Seng Tech Index .HSTECH eases 0.4%, Hang Seng Index .HSI slips 0.2%
** YTD, stock up 54.4%
($1 = 7.8498 Hong Kong dollars)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))