These are Singapore companies which announced share buybacks on Tuesday, 27 February 2019:
OCBC
OCBC bought back 200,000 shares in the market at S$11.24 each for a total consideration, including other costs, of S$2.25 million, it said in a filing to SGX after the market close on Tuesday.
StarHub
StarHub bought back 300,000 shares in the market at S$1.59 each for a total consideration, including other costs, of S$477,612, it said in a filing to SGX after the market close on Tuesday.
Stamford Land
Stamford Land bought back 21,000 shares in the market at S$0.49 each for a total consideration, including other costs, of S$10,305, it said in a filing to SGX after the market close on Tuesday.