First Resources and Olam Group have replaced NetLink NBN Trust and SIA Engineering on the reserve list of the Straits Times Index.
SIA Engineering was only included in the reserve list in the most recent quarterly review in March, displacing CapitaLand Ascott Trust.
The other three members of the reserve list are Keppel REIT, Sheng Siong Group, and Suntec REIT.
The 30-member Straits Times Index, meanwhile, remains the same, according to FTSE Russell and SGX in their quarterly review.
The changes will take effect on June 22 and the next review in September.
