The fee for mandatory safety training for welders could be up to $120 per worker, to be paid by employers, Commissioner of Labour Matthew Cheung Kin-chung said yesterday. Mr Cheung said the training would target about 10,000 gas welding and cutting workers, requiring them to pass a one-day course. 'I don't think [the fee] is too much. There's got to be good dividends for bosses because there will be fewer accidents,' Mr Cheung said. The Labour Department is now finalising legislation for the course, as one of the long-term measures to improve safety after a blast in Tai Sang Wai on February 12 killed three workers. Other measures taken by the department to boost safety included re-drafting the present guidelines into a legally binding code of practice, as well as checks on the 4,000 work-places where gas welding and cutting are carried out. The explosion in Yuen Long was believed to have been caused by a leak from oxy-acetylene cylinders.