Taiwan
September 6: Ringleader detained
Kuo Lieh-chen, the owner of the unlicensed factory at the centre of the “gutter oil” busts, is taken into custody by officers from Taiwan’s Food and Drug Administration. Five others are implicated in the case and have been released on bail. Investigators find that over six months, Kuo has sold 243 tons of used oil collected from cookers, fryers and grease traps to Chang Guann. The oil is then mixed with lard oil and sold to 235 stores across the island.