"Each of these incidents involved serious harm to a worker, and the company had a legal obligation to report them as soon as they occurred, and then follow up with formal written notification," said Ms Morris.
"It is a fundamental right of workers to expect to go home safe after work - not only did that not happen in these cases, but the employer also took a lackadaisical attitude to its notification responsibilities, and this is unacceptable.
"This case should come as a big wake-up call to those with notification obligations. The MBIE urges all employers and others to make sure they notify us when required if serious harm incidents occur on the job," said Ms Morris.
Mondiale Freight Services Limited was charged under the Health and Safety in Employment Act and fined a total of $62,475.
Grant Ryder, director of Mondiale Freight Services declined to comment.