The Interior Ministry’s Anti-Economic Crime Department has arrested a Chinese man for questioning about the unlicensed import and distribution of motor oil.

The bureau chief of intellectual property at the Anti-Economic Crime Department, Touch Yuthear, reported that experts on Wednesday launched a raid on a truck distributing HXS Formula-1 and Top Formula-1 oil at Boeung Trabek Market.

Nineteen cases of the oil, purportedly a knock-off of the brand made in China, were found in the truck, after which officials inspected a house in Chbar Ampov district belonging to Chinese national Peng Yoqao. Another 69 cases of the product were discovered there.

Peng’s Cambodian wife reportedly said he was unaware the substance was counterfeit.

Lav Lihok, who holds the rights for importing the Formula-1 brands to Cambodia, said both varieties are made in the US, not China.

Peng has been charged with violating intellectual property rights and dishonest competition.

“[Peng] is currently negotiating compensation with [the company] to cancel the complaint,” Yuthear said.