July 14 (Reuters) - Australia's Abacus Storage King ASK.AX said on Monday it received a sweetened non-binding offer from a consortium of Ki Corporation and U.S.-listed Public Storage PSA.N, valuing the firm at A$2.17 billion ($1.43 billion), up from a prior offer of A$1.93 billion.
($1 = 1.5223 Australian dollars)