SCHEDULE 4 See Explanation (B) (i) after Rule 61-UP 1. Factories involving in production, processing or treatment of organic or inorganic chemicals using for this purpose among others: (a) alkylation (b) amination by ammonolysis (c) carbonylation (d) condensation (e) dehydrogenation (f) esterification (g) halogenation and manufacture of halogens (h) hydrogenation (i) hydrolysis (g) oxidation (k) polymerization (l) sulphonation (m) desulphurisation, manufacture and transformation of sulpur containing compounds (n) nitration and manufacture of nitrogen containing compounds (o) manufacture of phosphorus containing compounds (p) formulation of pesticides and of pharmaceutical products (q) distillation (r) extraction (s) sotvation (t) mixing 2. Factories involving in distillation, refining or other processing of petroleum or petroleum products. 3. Factories involving in total or partial disposal of solid or liquid chemicals by incineration or chemical decomposition. 4. Factories involving in production, processing or treatment of energy gases, for example: LPG, LNG, SNG. 5. Factories involving in dry distillation of coal or lignite. 6. Factories involving in production of metals or non-metals by a wet process or by means of electrical energy. | 
