Two more men were charged in court on Friday over the slashing of a full-time national serviceman outside Cathay Cineleisure Orchard.
Muhammad Fairuz Abdul Ghani and Muhammad Nazmir Osman, both 20, are accused of being with three others in an unlawful assembly to cause hurt to 20-year-old Wilson Siau when their accomplice, Muhammad Fahmi Razali, 20, was armed with a parang.
The attack occurred outside the Grange Road mall at 9.12pm.
Fahmi, together with Mizra Abdul Azman, 23, were earlier charged with rioting with deadly weapons. They will appear in court again on Tuesday.
Both Fairuz and Nazmir are remanded at Central police division lock-up until June 28.
Mr Siau who suffered injuries to his head and arms has since been discharged from hospital.
The maximum penalty for the offence is 10 years' jail and caning.