Esther Goh Tok Mui (Director of Business Development of NCS Pte Ltd at the time) was one of the women involved in the sex for contracts scandal with Peter Lim Sin Pang (commissioner of Singapore Civil Defence Force at the time). Between year 2010 and 2011, Esther Goh Tok Mui provided Lim Sin Pang sexual services or oral sex services in exchange for help in boosting the NCS Pte Ltd's business interests with the SCDF. Goh Tok Mui have sexual intercourse with Lim Sin Pang for a total of 7 times between April and November in 2011, at locations including a car park near to the Singapore Indoor Stadium and a HDB flat locate in Clementi.