We might not see much of a bang this Guy Fawkes.

Two explosions at a warehouse in Tianjin, China in August killed more than a hundred people, injured hundreds more and destroyed parts of the city.

The Chinese government reacted, revoking all explosives and hazardous substance exporters certificates.

Pyro Company Fireworks director Len Julian said everyone has been scrambling to reapply, which has meant a major fireworks shortage here.

He said it wasn't until over a month later that they actually went back to work - and now it's too late for a lot of New Zealand businesses.