2. ® BTC has been authorized as exclusive agent of this material in China market. The Most Revolutionary Innovation In The Field Of Unbreakable Polymer

3. During the ’90s Simula Technologies develoed NXT for military purpose to satisfy a specific need: a transparent, lightweight and bullet proof material superior to Polycarbonate. In 1996 Simula Technologies formed a strategic alliance with INTERCAST to futher develop the technology and optimize the material for optical uses. NXT’s Oringin ®

4. Il materiale Chracteristics of NXT Unbreakable Lightweight Optically Superior Transparent and clear Easily worked without cracking Stable over time Solvent resistant Reliable Can be thermosetted to shapes

5. NXT & PC Cross Reference ® Characteristics NXT PC Refractive Index1..531..59 Abbe Number (Chromatic Dispersion) 45(higher optical quality) 29 Prodction Method Injection Molding CastingInjection Molding Density1.111.22 Impact Resistant TestPass (Better than PC) Pass Unbreakable GuaranteeYesNo Stress CrackingNot possibleSensitive Chemical resistanceGoodPoor

6. Chemical Resistance Exposure To Solvent (Acetone) PC NXT ® ®

7. Chemical Resistance NXT ® PC 15 SECONDS EXPOSURE TO GASOLINE ®

8. Internal Stress NXT ® PC ®

9. Optical Property Image Clarity Depends on the material NXT ® PCPC Effects Of Chromatic Abberration ®

10. OPTICAL QUALITY Image distortion after impact NXT ® PC With NXT ® visibility is not compromised after impact ®

11. NXT ® NEVER BREAKS OVER 10,000 CYCLES ®

12. NXT ® NEVER CRACKS PC STRESS CRACKING ON PC ®

13. NXT – 3 Different Softness ® NXT Standard NXT NXT SOFT 70Middle Softness NXT SOFT 54Very Soft

14. ® NXT Lens Treatment Materi al Mass tintin g Surfac e tinting Photo- chrom ic Polaroi d Polaroi d +Photo- chromic NXTOK NXT SOFT (54&70 ) OKNOOK

15. ® NXT Lens Coatings MaterialAnti- scratch Anti- fog Mirror coating Multilayer /Anti- reflective coating Hydrophobic NXTOK NXT SOFT (54&70) OK NO OK

16. NXT ® Soft… ® This soft material has been used to make fashionable glasses for its many unique features.

17. Soft …does not injure your face NXT® Soft is flexible and bends The rigid lens penetrates ®

18. Dynaview™ high contrast (patented) Visor NXT ® increases safety in driving during poor Visibility conditions Reaction time improves ®

19. Dynaview™ Varia ® GN Visors Not activated Activated NXT ® VARIA ® GN visors Become darker when exposed to sunlight ®

20. ® Application Military & Police Top Security Commercial Use

21. ® Military and Police （ 1 ） Goggles Helmet Helicopter Tank

22. Military and Police （ 2 ）

23. ® Top Security This material is applied to ensure top security.

24. ® Commercial Use

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28. ® Technical Data sheet and Ballistic Properties

29. ® PropertyTest ConditionsUnitsStandardsResults PHYSICAL Specific GravityUNI EN ISO11831.14 MECHANICAL Tensile Modulus1mm/minMPaUNI EN ISO 527/97 1411 Yield Stress50 mm/minMPaUNI EN ISO 527/97 51.7 Yield Strain50 mm/min%UNI EN ISO 527/97 12.2 Stress at break5 mm/minMPaUNI EN ISO 527/97 56.6 Strain at break5 mm/min%UNI EN ISO 527/97 138 Stress crazing resistance (NXT thickness 3.0mm) 10 min air, 30 min acetone MPaASTMF-791>20 10 min air, 30 min gasoline MPaASTMF-791>20 Physical and Mechanical Properties

30. ® PropertiesTest Conditions UnitsStandardsResults IMPACT Charpy impact strength 23 ℃ kJ/m2UNI EN ISO 179/02 No failure Charpy impact strength -30 ℃ kJ/m2UNI EN ISO 179/02 No failure HARDNESS Durometer, shore D D scaleShore hardness 84 Rockwell Hardness M scaleRockwell71

31. ® PropertiesTest Conditions UnitsStandardsResults THERMAL Coeff of Linear Thermal Expansion 10-4/kISO 11359- 2/01 1.28 Heat Deflection Temperature 1.80 MPa ℃ ASTM D648160 Vicat Softening Temperature 50N, 50 ℃ /h ℃ UNI EN ISO 306/98 149 Thermal and Optical Properties

32. ® PropertiesTest Condition s UnitsStandard s Results PLAMMABILIT Y UL-94 Flammability UL-94 Vertical burning UL CLASS UL-9494V-2 OPTICAL Light Transmission -%EN 183691% Abbe number--40 haze-%ASTM D1003 0.11 Refractive Index-1.538

33. ® Ballistic Properties In accord with the ballistic test MIL-P-46593, cal. 0.22, 17 grain fragmentation, NXT(thickness 6.3mm, 0.25 inches) performs 34.8% better than Polycarbonate. (1) (1) Data provided by Simula Inc and referring to uncoated materials. Coatings might affect the ballistic properties of the materials.

34. ® Threat type projectile Velocity (ft/sec) nxt (1) Polycarbonate (1) Areal densit (Lbs/ft 2 ) Thick -ness (inches) Areal densit (Lbs/ft 2 ) Thick- ness (inches) Fragment 0.22-cal, 17-gr FSP MIL-P-46593 1180 1.48 （ monolithic) 0.25 2.57 (monolithic) 0.41 Hand Gun 0.44MAG, 240-gr NIJ STD 0108.01 Level III-A 1400 7.0 monolithic ） 1.22 8.1 laminated) 1.3 Rifle 7.62-mm M80 Ball NIJ STD 0108.01 Level III 2750 10.5 （ glass/NXT) 1.05 11.7 (glass/polycarb onate) 1.09 Ballistic Properties NXT® withstands to a given Impact Energy with up to 74% of savings in terms of areal density. (1) Data provided by Simula Inc and referring to uncoated materials. Coatings might affect the ballistic properties of the materials.

35. ® Contact Information Tel: 0755-2560 7438 Fax:0755-2563 6993 Email: info@btchk.com.hk Website:www.btchk.com.hk

36. ® Thank you for your time!