** Shares of property investment and management group Asiasec Properties Ltd soar 74.6% to HK$2.20, the highest since May 2019
** Stock last up 42.9%, on track for the best day since March 2010; stock is also the biggest percentage gainer on the Hong Kong bourse
** Tian An China Investment proposes to make an offer to buy interests in five properties, comprising industrial buildings and car-parking spaces in Hong Kong, from its unit Asiasec for HK$1.08 bln ($139.1 mln)
** Asiasec says proceeds from the disposal will be used to pay a special dividend of HK$0.95 per share to its shareholders
** Shares of Tian An China gain 0.7%
** The Hong Kong Hang Seng sub-index tracking property firms climbs 0.1%, and the benchmark index gains 0.3%
** As of last close, Asiasec stock had surged 11.5% this year ($1 = 7.7654 Hong Kong dollars)