subsidiary, Mitsui Oil Asia Singapore (MOAS), have been charged with “deceptively concealing” losses pertaining to the physical and futures trading losses of naphtha contracts in Singapore in late 2006. Noriyuki Yamazaki, MOAS’s former head of naphtha trading, his immediate boss, Wada Takayoshi, and the company’s executive vice-president Masatsugu Takahashi were charged in Singapore for their…