A lone culprit disguised as an employee of a semi-conductor company stole $11.38 million worth of electronic parts from a Tsing Yi warehouse, police said yesterday. Officers suspect it was an inside job because the man apparently knew the goods were arriving. The 41 boxes holding more than 760,000 Samsung-brand LCD components are understood to have been delivered to the Tsing Tim Street warehouse one or two days before the raid on May 30. The man collected the goods with a bogus company chop about an hour before the authorised worker arrived. Detectives from New Territories South regional crime unit are investigating, but have made no arrests. At about 9.15am on May 30, the man thought to be aged between 25 and 30 drove a white truck into the warehouse's car park. The number plate was later revealed to be fake. The man presented the bogus chop, the boxes were loaded and the truck drove away. The bandit, wearing black-framed glasses, is about 1.6 or 1.7 metres tall and of a medium build. He was wearing a black short-sleeved T-shirt, dark-blue shorts and white sports shoes. The theft was discovered when the genuine worker arrived at 10.30am, according to a police spokeswoman. A warehouse worker reported the theft, and officers searched but failed to find the truck. Anyone with information should contact police or call their hotline on 2525 7177. Electronic goods, mobile phone components and computer parts have often been a target of criminals in recent years. On June 1, five robbers threatened to bomb a trading company with a grenade before binding and gagging five employees in Kowloon Bay. They were trying to steal hard disks valued at $1 million, but fled empty-handed after the staff freed themselves and called police. A highway robbery gang escaped with $3.5 million worth of unfinished mobile phones on August 3 last year after hijacking a station wagon in Sha Tin in a daylight holdup. On July 1 last year, three robbers hijacked a truck in Tsuen Wan carrying LCD monitors worth $7.8 million after pistol-whipping the driver, who was bundled into a sack and dumped at Chuen Lung, north of Tsuen Wan.