Raffles Education chairman and chief executive officer Chew Hua Seng, along with lead independent non-executive director Lim How Teck, non-independent non-executive director Joseph He Jun, independent non-executive director Ng Kwan Meng and Doris Chung Gim Lian, a director and key management of Raffles K12 Sdn Bhd and Raffles Iskandar Sdn Bhd, have been arrested by the Commercial Affairs Department (CAD) of Singapore.