3.a)

Underground mining and related operations

*

3.b)

Opencast mining and quarrying

Where the surface of the area effectively under extractive operation equals 25 hectares

3.c)

Installations for the production of:

i) Cement clinker in rotary kilns 

With a production capacity of 500 tonnes per day

ii) Lime in rotary kilns 

With a production capacity of 50 tonnes per day

iii) Cement clinker or lime in other furnaces 

With a production capacity of 50 tonnes per day

3.d)

Installations for the production of asbestos and the manufacture of asbestos-based products

*

3.e)

Installations for the manufacture of glass, including glass fibre  

With a melting capacity of 20 tonnes per day

3.f)

Installations for melting mineral substances, including the production of mineral fibres 

With a melting capacity of 20 tonnes per day

3.g)

Installations for the manufacture of ceramic products by firing, in particular roofing tiles, bricks, refractory bricks, tiles, stoneware or porcelain 

With a production capacity of 75 tonnes per day, or with a kiln capacity of  4 m³ and with a setting density per kiln of 300 kg/m³