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2 Flotation Matrix 100™ Driving Measurable Quality & Performance Improvements

3 Flotation Matrix 100™ – What is it ? Flotation Matrix 100™ is a new approach to mineral flotation that combines an expert system, proprietary blends and our unmatched expertise and insights to consistently deliver measurable improvements in metallurgical, operational and financial performance. Deliverable Measurable Financial Performance

4 A Proven Process to Maximize Reagent Performance The Flotation Matrix 100 Process

5 What Makes an Ideal Reagent Program? Consistent with YOUR business strategy e.g., maximizing recovery while minimizing penalties. Should not focus solely on chemistry but consider a wider scope of available solutions Use Customized, formulated products in the selection suite because they: -Are Robust- work consistently even through large variations in operation. -Are targeted for maximizing selectivity and recovery of all values. -Enable metallurgical benefits in plant use e.g., minimize gangue or penalty elements. -Have consistent quality and performance. -Are designed with “Health & Safety” in mind: permit, toxicity, handling & transportation. High-Performance Products & Programs

6 Discovery Tools Question Sets Knowledgebase

7 The Flotation Matrix 100™ Process Discovering your Needs Understanding YOUR Needs Plant Needs/Objectives Mineralogy/Ore Types Plant Characteristics Plant Flow Sheet & Operating Conditions Plant Constraints/ROI

8 We look at the Impact to the Whole Flow Sheet General Flotation Process

9 Selection Tools Select-a-Guide Discovery Agreement

10 The Flotation Matrix 100™ Process Reagent Selection Matching YOUR Needs with “Best Available Technology” Performance Knowledge Base Computer Driven Reagent Selection Links Fundamental Structure- Activity Relationships Accommodates Technical Factors & Constraints

11 Why Flotation Matrix 100 Formulations Make Sense Recovery of Coarse Middlings & Fine particles (Accommodate grind variability) Improved Recovery of ALL Value Minerals (Different value mineral species have different affinities for reagents) Optimized Cost-Performance (Lowest Total Cost of Ownership) Co-Product Recovery (some collector components are better at recovering co-value products such as Au, Mo) Unique Products (Driving for superior performance) Create ADDED VALUE ; Improved productivity, metallurgy & ease of use Robustness over a wide range of Operating Conditions & Pulp Chemistry changes (pH, slimes, Ep, water composition, ore variability)

12 The Flotation Matrix 100™ Process Laboratory Testing Lab Screening I - Diagnostic Tests, Tools & Designs Important Chemical and Operational Factors; Important Ore Types Establish Suitability of Ore Sample for Reagent screening Establish suitable “Controls” (not just plant “Standard”) for Benchmarking/comparison Main laboratory Test Program Important Variables & Ore Types, Test Designs using DOE’s & REFDIST® Ensuring the Right Products for YOU

13 Lab Tools Contour Plots Ref Dist Analysis

14 The Flotation Matrix 100™ Process Plant Testing Plant Trial and Optimization Poison Tests Design of Experiment Long term trials Statistical Analysis Best Practices Application Expertise Knowledge base Optimizing YOUR Operations

15 Plant Tools

16 Operational Benefits of Flotation Matrix 100™ ROBUSTNESS in plant use Superior Performance in a Wide pH Range Improved Recovery of Coarse Middlings Improved Cu Recovery Improved Mo Recovery Improved Au Recovery Lime Savings Improved Concentrate Grades

17 What can Flotation Matrix 100™ do for YOU ? Flotation Matrix 100™ brings a wealth of technical and practical solutions to address YOUR unique needs and the expertise and tools to ensure maximum success: Improving recovery Increasing process efficiency Maximizing yield Improving grade Maximizing resources GREATEST VALUE & RETURN ON YOUR INVESTMENT

18 Why Cytec and Flotation Matrix 100™? Mining Chemicals is a Platform Business for Cytec With nearly 100 years of experience backing our expert team, we are the ideal partner to help you meet your business needs. No one else in the mining chemicals industry can match Cytec’s continually expanding depth of knowledge & technical know-how. We are ready to work with you to address your needs & meet your goals.

19 Flotation Matrix 100™ Flotation Matrix 100™ is a new approach to mineral flotation that combines an expert system, proprietary blends and our unmatched expertise and insights to consistently deliver measurable improvements in metallurgical, operational and financial performance. Deliverable Measurable Financial Performance

20 Recommendations & Proposal

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