Chemical Products and Solutions

Triazine-Based Biocide 75% Biocide / antimicrobial agent Furfural Furan-2-carbaldehyde · Solvent / chemical intermediate Triethylene Glycol (TEG) Solvent / dehydration agent Mixed Xylene Xylene · Solvent / diluent COROSCAV S-100 Proprietary H2S Scavenger · H2S scavenger N-Methylaniline (NMA) Chemical intermediate / fuel additive COROLUBE PPD Pour Point Depressant · Pour-point depressant / cold-flow improver COROL Starch HT Modified Starch (Drilling Grade) · Drilling application COROL FL-LEX HT Latex Fluid Loss Additive (FLA) · Drilling application H2S Scavenger (Triazine-Based) Hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine (HET) · H2S scavenger COROSCAV G400 Glyoxal 40% · H2S scavenger Ferro Chrome Lignosulfonate Iron-Chromium Lignosulfonate · Drilling-fluid thinner / deflocculant Walnut (F/M/C) Ground walnut shell, fine / medium / coarse · Lost-circulation material / bridging agent COROSOL BG Butyl Glycol · Solvent / glycol-based drilling-fluid additive COROMUL Rheology Modifier - Liquid Rheology & viscosity control COROL PAC LV Polyanionic Cellulose Low Viscosity Grade (PAC LV) · Low-viscosity polyanionic cellulose / fluid-loss control COROMUL SEV Secondary emulsifier · Secondary emulsifier for oil-based mud COROMUL PEV Primary emulsifier · Primary emulsifier for oil-based mud Morpholine Corrosion inhibitor / chemical intermediate SAPP (Sodium Acid Pyrophosphate) Sodium acid pyrophosphate, technical grade · Sequestering agent / water-treatment & processing aid STPP (Sodium Tripolyphosphate) Sodium tripolyphosphate, technical grade · Dispersant / sequestrant / water-treatment chemical MEA 85% Monoethanolamine 85% (COROL CI-M85), CO2 scavenger · Drilling-fluid additive Lubricity Improver SR 2008 Lubricity enhancer for drilling fluids CORO DEFOAM SB10 Silicone-based defoamer CORO DEFOAM AB90 Alcohol-based defoamer KCl 98% Potassium Chloride 98% · Shale-inhibition / clay-stabilizing agent COROMUL DD7 Drilling Detergent 7% · Emulsifier for oil-based drilling fluids COROL CI-150Z Ethylene glycol, imidazoline / sodium thiosulphate · Corrosion inhibitor COROL PAC HV Polyanionic Cellulose, High Viscosity Grade (PAC HV) · High-viscosity PAC / fluid-loss control COROL CMC LV Carboxymethyl Cellulose, Low Viscosity Grade (CMC LV) · Low-viscosity CMC / fluid-loss control CORO DEFOAM GB Glycol-based defoamer Calcium Bromide Solution 52% Completion & workover brine / weighting fluid Ammonium Bifluoride (ABF) Fluoride source / cleaning & etching agent COROL SI300 Polyamine Shale Inhibitor (MAX GUARD E) · Shale inhibitor COROTEC D1 Organophilic clay (rheological modifier) · Drilling-fluid additive COROL OBS TO1 Proprietary Oil-Based Mud Additive · Oil-based drilling-fluid additive COROL WT O Proprietary Water-Treatment Chemical · Water-treatment additive Calcium Chloride Anhydrous 94% Granular Brine / drilling-fluid weighting agent Monoethanolamine (MEA) Gas sweetening / pH regulator Cloud Point Glycol (Drilling Glycol) Polyalkylene Glycol / Polyglycol · Shale inhibitor

Antifoam SR SD100 Refinery antifoam (Xiameter ACP1400 type) · Antifoam / defoamer COROL 7030 Anti-fouling liquid (fouling inhibitor) · Sludge & pipeline cleaner

Dearomatised White Spirit D40 / D60 / D80 Hydrocarbon solvent Diethylene Glycol (DEG) Glycol solvent / chemical intermediate COROBLUE Diesel Exhaust Fluid (DEF) Aqueous Urea Solution (DEF) · Fluid for diesel engines Brake Fluid DOT 3 / DOT 4 Glycol Ether-based Brake Fluid · Hydraulic brake fluid DM Water Demineralised Water · Demineralized water / process water FSII (Fuel System Icing Inhibitor) Di Ethylene Glycol Mono Methyl Ether · Prevents icing of jet fuel at low temperature COROLUBE PIBSI Polyisobutylene Succinimide (PIBSI) · Dispersant / lubricant additive

Calcium Hypochlorite Disinfectant / oxidizing biocide Poly Aluminium Chloride Coagulant for water treatment HYDRONEX DP02 Dispersant · Water-treatment chemical HYDRONEX 2910 Nitrite-based Corrosion Inhibitor · Water-treatment chemical COROPOLY 206 Proprietary Polymer · Polymer-based drilling-fluid additive COROPOLY 203 Proprietary Polymer · Polymer-based drilling-fluid additive HYDRONEX CT1001 Corrosion & Scale Inhibitor · Water-treatment chemical

Ethyl Acetate Solvent White Spirit Mineral Spirits / Hydrocarbon Solvent · Solvent / cleaning agent