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1. Sibelco Specialty A general overview Tum Goossens October 2014 WM140826 CONFIDENTIAL

2. Sibelco worldwide 10,500 people 208 p roduction sites € 2.4bn turnover 1872 founded & still family owned 41 countries 26 technical centres

3. Sibelco worldwide North America: 45 plants silica olivine calcium clay & kaolin feldspar other minerals Asia: 20 plants silica recycled materials calcium other minerals feldspar other products clay & kaolin Australia: 24 plants silica clay & kaolin calcium other minerals feldspar other products South America: 1 5 plants silica clay & kaolin calcium mineral sands feldspar other products olivine Europe: 123 plants silica clay & kaolin other minerals calcium mineral sands other products feldspar recycled materials olivine

4. Sibelco worldwide Industrial agriculture b iomass c hemical road construction s ports & leisure w ater filtration Ceramics sanitaryware s tructural t iles & e ngobes Construction building e nergy e ngineered s tone Glass container crystal fibre f loat specialty Metallurgy abrasives f oundry r efractories s teel Specialty coatings flame retardants rubber plastics

5. Sibelco fillers in coatings Fillers in coatings Improving performance Reducing costs Gloss control Durability improvement : Barrier effect Crack prevention Passivation Scrub resistance Abrasion resistance Rheology control Special applications : Easy- to -clean TiO 2 extender Filler in clearcoats particle size ( distribution ) chemical purity brightness particle shape specific surface area oil absorption particle morphology surface charge/ activity

6. Sibelco product portfolio Portaryte ® Ground barium sulphate Casiflux ® Wollastonite Portalum ® B Calcined bauxite Tital ® Talc (macro- crystalline ) Portafer ® AP Micaceous iron oxide Portafill ® A ATH Portafill ® H Magnesium calcium carbonate Portafill ® G Glass Unispar ® Na feldspar Minex ® Nepheline Syenite Silica sand / Silverbond® Quartz Sibelite ® Cristobalite ( calcined quartz ) Broad product porfolio , many opportunities !

7. Sibelco Europe Coatings & Plastics p roduction plants Maastricht Portafill ® H, Portafill ® G, Portaflame ® SG (special grades ) Geertruidenberg Portaryte ®, Portafill ® A, Portaflame ® SG, Casiflux ®, Portafer ® AP, Portalum ® B Dessel Sibelite ®, Silverbond®, Minex ® S Poviglio Unispar ® PG, Casiflux ®, Portaryte ® B/ D Brassington Portaryte ® B, Portaflame ® SG, Tital ® Sternoy Minex ® S Belaruc les Bains Portaflame ® SG Compiegne Quartz sand and flour Nemours Quartz sand and flour Moscow Quartz sand and flour , Unispar ® Lefkara Portafill ® H Nules Unispar ® PG-7 Uijkhoven Tital ®

8. Sibelco typical application matrix Filler selection Decorative Industrial Interior Exterior Casiflux ® crack prevention, scratch resistance Unispar ® PG scrub / burnish resistance Minex ® (S) scrub / stain resistance , matting Sibelite ® ( coarse / fine) scrub / stain resistance , matting, brightness Silverbond® ( coarse / fine) scrub / burnish resistance , matting Portafill ® H TiO 2 extender , rheology control Marine & Protective Wood Powder Road marking Portafill ® G texture , scrub / stain resistance

9. Sibelco typical application matrix Unispar ® Na feldspar Filler selection Decorative Industrial Casiflux ® corrosion resistance , surface effects Unispar ® PG/ FF abrasion resistance , low conductivity Minex ® (S) abrasion , corrosion resistance Sibelite ® ( coarse / fine) brightness , abrasion , skid Silverbond® ( coarse / fine) scrub / burnish resistance , matting Portaryte ® B Inert, low conductivity , high density Marine & Protective Wood Powder Road marking Sibelite ® ( coarse / fine) chemical / abrasion resistance , skid , low density Silverbond® ( coarse / fine) chemical , abrasion resistance , skid Portafer ® AP Inert, corrosion resistance , reinforcement Minex ® (S) abrasion , UV curing , matting Sibelite ® ( coarse / fine) abrasion , matting Portafill ® A matting, reducing blanching Portaryte ® B Inert, low conductivity , matting, density Minex ® (S) abrasion , matting, clarity Portaryte ® B Inert, improved levelling Portalum ® B high abrasion resistance

10. Sibelco product portfolio Portaryte ® Ground barium sulphate Casiflux ® Wollastonite Portalum ® B Calcined bauxite Tital ® Talc (macro- crystalline ) Portafer ® AP Micaceous iron oxide Portafill ® A ATH Portafill ® H Magnesium calcium carbonate Portafill ® G Glass Unispar ® Na feldspar Minex ® Nepheline Syenite Silica sand / Silverbond® Quartz Sibelite ® Cristobalite ( calcined quartz ) FILLER SELECTION SHEET

11. Sibelco Portaryte ® Property B D Unit Moisture 0.1 [%] pH 9 [-] Hardness ( Mohs ) 3.5 [-] Refractive index 1.64 [-] Colour (D65/ 10°) L* 96 beige [-] BaSO 4 + SrSO 4 98.5 96.5 [%] SiO 2 1 3 [%] Fe 2 O 3 0.05 0.3 [%] Density 4.4 [kg/ dm 3 ] General characteristics : Inert Excellent chemical resistance Easy wetting Low binder demand Easy to disperse ( also compared to precipitated barium sulphate ) Portaryte ®: Barium sulphate 2 groups : Portaryte ® B: white Portaryte ® D: off-white Both are ground barium sulphate Improved performance compared to and cost effective alternative to precipitated barium sulphate

12. Sibelco Portaryte ® Grade D50 D97 OA D15 4.5 16 10 D20 6.0 20 10 D40 8.0 36 9 D50 10.5 54 9 D80 13 85 8 D150 18 110 7 Grade D50 [µm] D97 [µm] OA [g/ 100 g] B3 1.3 3.7 12 B4 1.5 4.5 11 B5 1.9 6.0 11 B8 2.2 8.0 11 B10 2.6 11.0 10 B15 3.4 16.0 10 B25 5.5 25.0 10 B45 13.0 45.0 9 B40/10 17.0 38.0 12 B50/10 21.0 60.0 11

13. Sibelco Portaryte ® Main application areas for Portaryte ® include : Powder coatings Corrosion resistance , gloss control, density increase Protective coatings Industrial and marine for corrosion resistance due to inertness , low conductivity Automotive primers

14. Sibelco Portaryte ® Comparing Ground Barium Sulphate (GBS) to Precipitated Barium Sulphate (PBS): Easier to disperse : 1: Blanc Fixe Micro ( Sachtleben ) 2 : Blanc Fixe Brilliant ( Solvay ) 3 : Blanc Fixe F ( Sachtleben ) 4: Blanc Fixe HD80 ( Solvay )

15. Sibelco Portaryte ® Comparing Ground Barium Sulphate (GBS) to Precipitated Barium Sulphate (PBS): Easier to disperse : 1: Blanc Fixe Micro ( Sachtleben ) 2 : Blanc Fixe Brilliant ( Solvay ) 3 : Blanc Fixe F ( Sachtleben ) 4: Blanc Fixe HD80 ( Solvay )

16. Sibelco Portaryte ® Comparing Ground Barium Sulphate (GBS) to Precipitated Barium Sulphate (PBS): Gloss : high gloss -> fine barites (B3, B4) low gloss -> coarser grades (B5, B8) 1: Blanc Fixe Micro ( Sachtleben ) 2 : Blanc Fixe Brilliant ( Solvay ) 3 : Blanc Fixe F ( Sachtleben ) 4: Blanc Fixe HD80 ( Solvay )

17. Sibelco Portafill ® A Gloss control:

18. Sibelco Portafer ® AP Property Value Unit Moisture 0.1 [%] pH 9 [-] Hardness ( Mohs ) 6 [-] Electrical conductivity 60 [µS/ cm] Colour black [-] Lamellarity > 70 [%] Soluble matter < 0.1 [%] L.O.I. 0.6 [%] Density 4.7 [kg/ dm 3 ] Portafer ® AP: Micaceous iron oxide General characteristics : High aspect ratio Good chemical resistance Heat stability

19. Sibelco Portafer ® AP Main application areas for Portafer ® AP include : Protective coatings Barrier properties Reinforcement UV reflection Chemical resistance Heat stability Decorative coatings Specialty pigment Grade + 63 µm + 75 µm + 125 µm OA AP65 3.7 1.6 - 17 AP70 7.0 2.4 - 16 AP75 12.5 5.0 - 15

20. Unispar ®: Natural mixture Na-K feldspar Swedish grades (FF): 3 - 5% muscovite mica Mainly for industrial applications Italian grades (PG): PG W- grades suitable for decorative applications Sibelco Unispar ® General characteristics : Hard mineral Very low crystalline silica (PG- grades ) Good chemical resistance Low conductivity ( suitable for marine applications ) Property Value Unit Moisture < 0.5 [%] Hardness ( Mohs ) 6 (6.5) [-] Refractive index 1.53 [-] L.O.I. 0.5 [%] Density 2.6 [kg/ dm 3 ]

21. Sibelco Unispar ® Main application areas for Unispar ® include : Protective coatings (marine, anti- corrosion ) High durability , abrasion resistance , alternative to crystalline silica and high silica feldspar Exterior decorative coatings Abrasion resistance , high durability , Interior decorative coatings Chemical, burnish and stain resistance , uniform sheen Grade D50 [µm] D97 OA [g/ 100 g] pH L* FF-20 6 n.d . 32 9.8 FF-30 8 n.d . 28 9.7 FF-45 18 n.d . 27 9.6 FF-60 19 n.d . 27 9.5 FF-150 23 n.d . 24 9.4 PG4 4 17 26 9.5 94.5 PG7 7 28 24 9.5 94.4 PG W13 13 60 22 8.1 96.4 PG W20 20 80 19 8.2 96.2

22. Sibelco Portafill ® A Property Value Unit Moisture < 0.4 [%] pH 9 [-] Hardness ( Mohs ) 3 [-] Refractive index 1.57 [-] Electrical conductivity 60 [µS/cm] L.O.I. 34.5 [%] Density 2.4 [kg/ dm 3 ] General characteristics : High brightness High purity Very good chemical inertness Low density Most commonly used in flame retardant applications -> Portaflame ® SG ATH®: Milled aluminum trihydroxide

23. Sibelco Portafill ® A Main application areas for Portafill ® A include : Powder coatings Replacement of BaSO 4 when density is a limitation Gloss control (A10 for glosst application , A40 as matting agent Reducing blanching / water spotting Grade D50 [µm] D97 [µm] OA [g/ 100 g] L* A10 3.8 10 27 98.4 A40 11.5 36 20 97

24. Sibelco Portafill ® A Gloss control:

25. Sibelco Casiflux ® F, FG and G Property F/ FG G Unit Moisture < 0.2 0.2 [%] pH 10 [-] Hardness ( Mohs ) 5 [-] Refractive index 1.63 [-] L.O.I. 3.5 n.d . [%] Density 2.9 [kg/ dm 3 ] General characteristics : High aspect ratio Hardness Fair chemical resistance (alkali) Casiflux ®: Calcium silicate 2 grades : Casiflux ® F & FG: long fibre Casiflux ® A & G: short fibre

26. Sibelco Casiflux ® F, FG, A & G Grade D50 [µm] OA [g/ 100 g] L* FG20 18 54 94 F75 28 60 90 F125 57 n.d . 93 A38 11.5 19.5 95 A90 28 95.5 G20 10.5 30 96 G38 18 28 96 Main applications for Casiflux ® in coatings include : Anti- corrosion primers Reinforcement Decorative and protective coatings Crack prevention, scratch resistance Casiflux ® F, FG Casiflux ® A, G Powder coatings Matting and texture effects

27. Sibelco Portafill ® H General characteristics : High brightness Platy particle shape Fine particle size Portafill ® H: Partially hydrated magnesium-calcium carbonate 2 grades : Portafill ® H5 Portafill ® H10 Surface treatment with stearic acid possible (1.0/ 2.0/ 3.0 %) Property H5 H10 Unit Moisture 0.6 [%] pH 10 [-] Hardness ( Mohs ) 2 - 3 [-] Refractive index 1.61 - 1.64 [-] Colour (D65/ 10°) L* 98 - [-] Ry - 93 [-] Density 2.7 [kg/ dm 3 ]

28. Sibelco Portafill ® H Main applications for Portafill ® H5 and H10 include : Very efficient TiO 2 extender (H5 over H10 because higher platy content, higher whiteness ) Higher oil absorption H5 giving better dry hiding power than H10 Rheology modifier Cost effective alternative to calcined kaolins , hydrous kaolin and synthetic Al- silicate Only suitable for high PVC, indoor decorative applications Portafill ® H5 combined with TiO 2 Grade D50 [µm] D97 [µm] OA [g/ 100 g] H5 ~ 0.5 ~ 0.9 57 H10 ~ 0.5 ~ 0.9 50

29. Sibelco Portafill ® H How does it work ? PVC < CPVC: Access binder available All TiO 2 particles wetted and dispersed Limited role TiO 2 extender High quality wall paints No Portafill ® H5 territory PVC > CPVC: Binder shortage Not all TiO 2 particles wetted and dispersed Role TiO 2 extender : seperate agglomerates Cost-effective wall paints Portafill ® H5 territory !

30. Sibelco Portafill ® H Competition PCC (€300 - 350/ MT) Precarb 100 ( Schaefer ), Socal P2/ P3 ( Solvay ) Disadvantages over Portafill ® H5: Limited added value to contrast ratio Low impact on viscosity Synthetic sodium aluminium (magnesium) silicate (€800/ MT) Sipernat 820A ( Evonik ), Sylowhite 405 SM (Grace) Disadvantages over Portafill ® H5: Price High oil absorption (gen. 90 g/ 100 g)

31. Sibelco Portafill ® H Competition Hydrous kaolin : (€280-350/ MT) Supreme ( Imerys ), Speswhite ( Imerys ) Calcined kaolin : (€450-700/ MT) Satintone W (BASF), Polestar 200P ( Imerys ), Dorkafill H ( Dorfner ), Satintone 5HB (BASF), Opacilite ( Imerys ) Similar performance, so target areas Portafill ® H5 and H10!

32. Sibelco Portafill ® H Guidelines for use : Proven dispersant combination Portafill ® H5/ H10: 0.4 - 0.5% w/w Rheotan L Sodium Poly- acrylate Electrostatic and steric stabilisation 0.1 - 0.2% w/w Calgon N Sodium Poly- Phosphate Electrostatic Stabilisation 0.1 - 0.2% w/w Nuosperse FN 265 Phenol free wetting agent Dispersion TiO 2 and extender Maximum loading Portafill ® H5/ H10: 7% based on total formulation weight Potential reduction TiO 2 is depending on loading -> to be determined experimentally Examples : See other presentations

33. Sibelco Portafill ® H Example 1: Portafill ® H5/ H10 vs. Satintone W ( calcined kaolin , PVC ~75%) 75% PVC interior Wall Paint     Formulation Satintone W based H10 H5 Grind Water 296,0 296,0 296,0 Rheotan L 3,0 3,0 3,0 Calgon N 1,0 1,0 1,0 Nuosperse FN265 1,0 1,0 1,0 Preventol D6 3,0 3,0 3,0 Byk 032 2,0 2,0 2,0 Tylose H6000 3,0 3,0 3,0 Kronos 2300 60,0 60,0 60,0 Finntalc M20 70,0 70,0 70,0 Omycarb 5 350,0 350,0 350,0 Satintone W       70,0     Portafill H 10         70,0   Portafill H5           70,0         Let Down Acronal 290D 138,0 138,0 138,0 Aquaflow NLS 205 3,0 3,0 3,0 Total 1000,0 1000,0 1000,0

34. Sibelco Portafill ® H Example 1: Portafill ® H5/ H10 vs. Satintone W ( calcined kaolin , PVC ~ 75%) 75% PVC interior Wall Paint     Formulation Satintone W based H10 H5 Brookf.RVT visc. S5 directly after prep. 20 rpm mPa.s 2540 3400 4920 10 rpm mPa.s 4280 5680 8280 1 rpm mPa.s 26000 36000 52400             Brookf.RVT visc . S5 after 1 day of preparation 50 rpm mPa.s 1760 2440 3464 20 rpm mPa.s 3200 4500 6460 10 rpm mPa.s 5240 7400 10680 1 rpm mPa.s 30800 44800 67200   Brightness L value (300 μm wet) on white     95,9 95,9 96,2   Contrast Ratio (150 μ m wet) Yb/Yw % 96,1 96,5 96,5 Contrast Ratio (200 μ m wet) Yb/Yw % 97,9 97,7 98,1 Contrast Ratio (300 μ m wet) Yb/Yw % 99,2 99,2 99,3   Scrub resistance after 6 days 25°C/ 1 day 50°C mu 20 24 26 Class according to ISO EN 13300   3 3 3   Gloss 85° (bird applicator 150 μm) white % 4,9 3,8 3,8   Crack formation starting at mm 2,8 1,1 0,9*         * substantial improvement by adding either 3% Casiflux GF20 or 1,5% coalescent agent (weight on wet paint)

35. Sibelco Portafill ® H Example 2: Portafill ® H5/ H10 vs. Polestar 200P ( calcined kaolin , PVC ~ 75%) 75% PVC interior Wall Paint     Formulation Polestar P200 based adapted H10 based H5 based 11-9-2013 10-9-2013 10-9-2013 Grind Water 301,0 301,0 301,0 Rheotan L 3,0 3,0 3,0 Calgon N 1,0 1,0 1,0 Nuosperse FN265 1,0 1,0 1,0 Preventol D6 3,0 3,0 3,0 Byk 032 2,0 2,0 2,0 Tylose H6000 4,0 3,0 3,0 Kronos 2300 60,0 60,0 60,0 Finntalc M20 70,0 70,0 70,0 Omycarb 5 350,0 350,0 350,0 Polestar P200       70,0     Portafill H10         70,0   Portafill H5           70,0         Let Down Acronal S589 133,0 133,0 133,0 Aquaflow NLS 205 4,0 3,0 3,0                 Total 1002,0 1000,0 1000,0

36. Sibelco Portafill ® H Example 2: Portafill ® H5/ H10 vs. Polestar 200P ( calcined kaolin , PVC ~ 75%) 75% PVC interior Wall Paint     Formulation Polestar P200 based adapted H10 based H5 based Brookf.RVT visc . S5 directly after prep. 50 rpm mPa.s 1568 1480 1824 20 rpm mPa.s 2800 2740 3500 10 rpm mPa.s 4440 4560 5920 1 rpm mPa.s 24800 28000 38800             Brookf.RVT visc . S5 after 1 day of preparation 50 rpm mPa.s 1632 1720 2056 20 rpm mPa.s 2840 3120 3860 10 rpm mPa.s 4400 5080 6480 1 rpm mPa.s 23600 30800 42000               Brightness L value (300 μm wet) on white     95,84 95,82 96,05 Tappi T452 value (300 μm wet) on white     86,86 87,44 87,86 DIN 6167 Yell value (300 μm wet) on white     4,16 3,74 3,41                     Contrast Ratio (150 μ m wet) Yb/ Yw % 96,3 96,0 96,5 Contrast Ratio (200 μ m wet) Yb/Yw % 98,0 97,6 98,2 Contrast Ratio (300 μ m wet) Yb/ Yw % 99,3 99,2 99,3       Scrub resistance after 6 days 25°C/ 1 day 50°C mu 54 46 47 Class according to ISO EN 13300   3 3 3       Gloss 85° (bird applicator 150 μm) white % 5,2 4,0 3,9       Crack formation starting at mm 2,8 2,2 1,7        

37. Sibelco Portafill ® H Example 3: Portafill ® H5 vs. Supreme ( hydrous kaolin , PVC ~70%)

38. Sibelco Portafill ® H Example 3: Portafill ® H5 vs . Supreme ( hydrous kaolin , PVC ~70%)

39. Sibelco Portafill ® H Example 3: Portafill ® H5 vs . Supreme ( hydrous kaolin , PVC ~70%)

40. Sibelco Portafill ® H Example 4: Portafill ® H5 vs. Socal P2 (PCC, PVC ~ 75%)