# The Smoke Control Areas (Authorised Fuels) (Wales) Regulations 2008, Paragraph 18


Ecobrite briquettes, manufactured by Arigna Fuels Limited at Arigna, Carrick-on-Shannon, County Roscommon, Republic of Ireland, which—
(a) comprise anthracite fines (as to approximately 96 per cent of the total weight) and starch as binder (as to the remaining weight);
(b) were manufactured from those constituents by a process involving roll-pressing and heat treatment at about 250° C;
(c) are unmarked pillow-shaped briquettes in two sizes having an average weight of 37 grammes for the smaller size and 48 grammes for the larger size; and
(d) have a sulphur content not exceeding 1.5 per cent of the total weight.

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Source: https://www.legislation.gov.uk/wsi/2008/3100/schedule/paragraph/18 (the official version)
Page: https://openlegislation.uk/smoke-control-areas-authorised-fuels-wales-regulations-2008/schedule/paragraph-18
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.