The Singapore Civil Defence Force (SCDF) says the 10 injured workers, including another three Chinese workers and seven Bangladeshi workers, were taken to Changi General Hospital (CGH) for treatment.
The ministry says items such as identification cards, mobile phones, name lists of workers, bank transaction receipts, Singpass tokens and employment documents were seized during the operation.
The Philippines suspended exploration at the Reed Bank, which it calls Recto Bank, in late 2014, as it pursued international arbitration over territorial disputes.