The 10 truck-blockade has been in place at the company in tambon Kanchu in Phetchabun's Bung Sam Phan district since Sunday, reports the Bangkok Post.

Uthis Kaewsap, a truck operator, said the business, which is a subsidiary of Saha Farm Group, had failed to pay their delivery costs for several months.

He said that he and other truck operators had blockaded the company for the same reason in the middle of last year, and that executives had promised to pay them gradually on a monthly basis.

But the company has still only made one payment to the truck operators, prompting them to block the business with their vehicles again.

Golden Line Business owed 14 transporters more than 8 million baht altogether, Mr Uthis said.