Yeah I'm not sure, the wording isn't so clear. But still, they knew it was carrying "metal sulphide concentrates (zinc and lead)" on it's previous voyage. A quick google says: "Metal sulfide concentrate is a refined ore that contains high concentrations of valuable metals and has had impurities removed."
Is it really suitable to risk cleaning it then transporting consumable food items in it? Especially one that was carrying lead of all things? As the Food safety deputy director general said:
"New Zealand Sugar Company knew what its responsibilities were to consumers - ensuring the safety and suitability of its products and managing any potential risk to consumers," Arbuckle said.
Also the fact they didn't even detect the extent of the lead contamination until after it had already been used in production.
Samples were taken between 15 and 24 September for testing, but Chelsea Sugar followed its normal process for distribution and sale.
"The test result on 7 October showed high readings of lead contamination, but rather than take immediate action and stop production and distribution, they instead sought more testing which confirmed the same result," Arbuckle said.
"Some of this product was sold between October and early November. We were not informed of the lead contamination until 3 November, which is unacceptable.
I'm not saying they should be made bankrupt, but it should probably have more impact than "the cost of doing business"
It seems neither of us know enough about the industry to speculate, but logically speaking, if they had followed the correct MPI processes and the process itself was at fault a fine wouldn't have been levied against them in the first place.
Like the food safety guy said; they had a responsibility to manage any potential risks to consumers. It's not like they are a new inexperienced business, they've been in the same business for over 100 years. This did happen almost four years ago, I'm fairly confident that they've made enough profit in that time to easily pay this fine without breaking a sweat.