They are Singaporean work pass holders, aged 30 and 37, and are linked to a worksite in Seletar Aerospace Heights. They are cases 52 and 56.
The worksite is now linked to a cluster of four cases, all of whom are Bangladeshi nationals.
One of the Bangladeshis confirmed to be infected today, case 52, fell ill on February 7.
He reported that he had mostly stayed in his rental apartment in Campbell Lane since he fell ill.
The 37-year-old was identified as a close contact of the two previously identified Bangladeshi work pass holders, who both worked at the Seletar Aerospaces Heights worksite.
They have no recent travel history to China. They are currently warded in isolation rooms at the National Centre for Infectious Diseases.
Earlier, two Bangladeshi nationals aged 35 and 39, who are work permit holders in Singapore, were reported to be diagnosed with novel coronavirus on February 9 and 11.