Paragraph 49 F1

Any activity for the polymerisation or co-polymerisation of any pre-formulated resin or pre-formulated gel coat which contains any styrene, which is likely to involve, in any 12-month period, the polymerisation or co-polymerisation of 100 tonnes or more of styrene.

Any activity for polymerising or co-polymerising any unsaturated hydrocarbons or a product of an activity listed in schedule 21 (other than a pre-formulated resin or pre-formulated gel coat which contains any unsaturated hydrocarbons), which is likely to involve, in any 12 month period, the polymerisation or co-polymerisation of 50 tonnes or more of any of those materials or, in aggregate, of any combination of those materials.