There are claims that around 350 jobs may be at risk at Willerby Holiday Homes, one of the region's biggest caravan manufacturers.
Willerby is understood to have told local MPs that the move is "purely precautionary", "not definite" and will give the company "flexibility".
This follows the Chancellor's proposal to levy 20% VAT on static caravans from October.
Karl Turner, Labour MP for Hull East, has reacted to the possible redundancies.
More top news
Much brighter than previous days this week. Decent sunny spells, large areas of cloud around North Sea areas
A few thunderstorms clipped Lincolnshire on Friday night, but they have now decayed and it should be mostly just cloudy on Saturday
It's goodbye to all that mist and low cloud from Sunday.