The incident resulted in the deaths of nine people
There is widespread support for the "fullest possible" public inquiry into the Stockline factory blast, First Minister Alex Salmond has said.
The incident in Glasgow three years ago claimed the lives of nine people and injured 33.
Owners and operators ICL plastics and ICL Tech were fined £400,000 for health and safety breaches.
At question time, Mr Salmond said a comprehensive inquiry would be able to look at the full scope of the tragedy.
The inquiry call, from Glasgow Maryhill Labour MSP Patricia Ferguson, has been echoed by the victims' families, who earlier branded the sentence an "insult".
Ms Ferguson said a full judicial public inquiry was necessary so that all the lessons of the incident could be learned.
This, the former minister said, would "send out a signal that in this country it is completely unacceptable that nine people should lose their lives just because they went to work".
The first minister said a decision on the type of inquiry was down to Lord Advocate Elish Angiolini, but under the 2005 Inquiries Act would be ordered jointly by Scottish and UK ministers.
Ms Angiolini is consulting the families and authorities involved and is expected to reach a decision by the end of the month.
"I think given the nature of the criminal proceedings, which was a successful prosecution, but obviously meant that some of the evidence was required to surface in the course of the proceedings, all are agreed that an inquiry in public is necessary," the first minister said.