1. a

   The crushing, grinding or other size reduction or the grading, screening or heating of any designated mineral or mineral product except where—

   1. i

      the process falls within a description in another Section of this Schedule;

   2. ii

      the process is related to another process falling within such a description; or

   3. iii

      the operation of the process is unlikely to result in the release into the air of particulate matter.

2. b

   Any of the following processes unless carried on at an exempt location or as part of a process falling within another description in this Schedule—

   1. i

      crushing, grinding or otherwise breaking up coal or coke or any other coal product;

   2. ii

      screening, grading or mixing coal, or coke or any other coal product;

   3. iii

      loading or unloading coal, coke or any other coal product except unloading on retail sale.

3. c

   The crushing, grinding or other size reduction, with machinery designed for that purpose, of bricks, tiles or concrete.

4. d

   Screening the product of any such process as is described in paragraph (c).

5. e

   Coating roadstone with tar or bitumen.

In this section—

• “coal” includes lignite;

• “designated mineral or mineral product” means—

  1. i

     clay, sand and any other naturally occurring mineral other than coal or lignite;

  2. ii

     metallurgical slag;

  3. iii

     boiler or furnace ash produced from the burning of coal, coke or any other coal product;

  4. iv

     gypsum which is a by-product of any process; and

• “exempt location” means—

  1. i

     any premises used for the sale of coal, coke or any coal product by retail where at least 90% on aggregate of the coal, coke and coal products which are removed from those premises are supplied to persons purchasing in quantities of 10 tonnes or less; or

  2. ii

     any premises to which coal, coke or any coal product is supplied only for use there.

Nothing in this Section applies to any process carried on underground.