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.
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Monday morning weather forecast
Emma Jesson brings you Sunday evening's forecast for Yorkshire and Lincolnshire
Wet and windy spells, interspersed with drier interludes this week. Wintry showers and variable temperatures. Gales and a weather warning