BHP Billiton Restart ProjectBHP Billiton Restart ProjectPinto Valley Operations Pinto Valley Operations

Miami, ArizonaMiami, ArizonaCompletion 08Completion 08--3030--20072007

Site Contractor:Site Contractor:Corrosion ProtectionCorrosion Protection

PermaDri Inc., Liquid Rubber PermaDri Inc., Liquid Rubber Industries and Barrier Specialty Industries and Barrier Specialty

Roofing and Coatings Roofing and Coatings

PermaDri and Liquid RubberPermaDri and Liquid RubberWorld Wide CoverageWorld Wide CoveragePermaDri Inc PermaDri Inc –– USAUSA

Liquid Rubber Industries Liquid Rubber Industries –– Canada Canada and International in 30 countriesand International in 30 countries

Pinto Valley is outside of Miami, Pinto Valley is outside of Miami, AZ. 1AZ. 1--1/2 Hours East of Phoenix1/2 Hours East of Phoenix

AMEC EngineeringAMEC EngineeringWorld Class Engineering Group World Class Engineering Group overseeing the Restart project at overseeing the Restart project at BHP Billiton Pinto ValleyBHP Billiton Pinto Valley

Our ambition is to continue to be one of the world's leading international project management and services companies by bringing added value to our clients, investing in our people and the communities we work with.

AMEC Original Procurement AMEC Original Procurement Description for Pinto Valley Description for Pinto Valley

ProjectProject

RFQRFQ--153272153272--857A Rubber 857A Rubber Lining Thickener TanksLining Thickener Tanks--MolyMolyDayDay--MolyMoly Product ThickenerProduct Thickener

PermaDri and LRIPermaDri and LRICase Study: BHP Pinto Valley (Summer Case Study: BHP Pinto Valley (Summer 2007) Restart Project2007) Restart Project

Corrosion Protection of Thickener Tanks, Corrosion Protection of Thickener Tanks, Impact Protection in Filter Building etc Impact Protection in Filter Building etc

Collaboration of PermaDri and LRICollaboration of PermaDri and LRI

LRI LRI –– Liquid Rubber Industries of CanadaLiquid Rubber Industries of Canada

Roles of Liquid Rubber Roles of Liquid Rubber IndInd and and PermaDri IncPermaDri Inc

LRI LRI –– Site Training Site Training –– Doug BilbijaDoug BilbijaPermaDri PermaDri –– Fresno, CA (US based Fresno, CA (US based manufacturer) of Liquid Rubber manufacturer) of Liquid Rubber Proprietary ProductsProprietary ProductsDoug and John Bilbija (Principles of Doug and John Bilbija (Principles of LRI) are partners in PermaDri IncLRI) are partners in PermaDri Inc

Barrier = The ContractorBarrier = The ContractorBarrier Specialty Roofing & Barrier Specialty Roofing & Coatings, Inc. Coatings, Inc. Provides Provides statestate--ofof--thethe--art sprayed roofingart sprayed roofingand and coating systemscoating systems, ,

over over 5 million5 million square feet square feet throughout the United States. throughout the United States.

PermaDri PermaDri ““Rubber Spray" or Rubber Spray" or

Liquid Rubber Liquid Rubber ““VezlarVezlar””

Polymer Modified EmulsionPolymer Modified Emulsion850% Elongation + 95% recovery850% Elongation + 95% recovery

Day One Site Training with Doug Day One Site Training with Doug Bilbija (far left) of Liquid RubberBilbija (far left) of Liquid Rubber

Doug Bilbija, Chemist & Trainer Doug Bilbija, Chemist & Trainer

Lower 90Lower 90’’ Diameter Thickener Diameter Thickener TanksTanks

Rusted Metal New Construction Rusted Metal New Construction Metal TanksMetal Tanks

Safety First SupervisionSafety First Supervision

Minimal PreparationMinimal Preparation

Power Wash Only Power Wash Only No Need to Remove All The RustNo Need to Remove All The Rust

BarrierBarrier’’s Private Plane Services s Private Plane Services Their Crews Throughout the WestTheir Crews Throughout the West

Barrier President Blair CunningsBarrier President Blair Cunnings

Checking ThicknessChecking ThicknessNote Water Streaming out of Note Water Streaming out of

Instant Set Water Based Instant Set Water Based CoatingCoating

Pump OperatorPump Operator

Hose ManHose Man

Spray OperatorSpray Operator

Spray Operator Looking through Spray Operator Looking through Launder ChuteLaunder Chute

Before Application of Rubber Before Application of Rubber Spray or LRI Spray or LRI ““VezlarVezlar””

After Coating AppliedAfter Coating Applied

Rubber Spray + Salty Water Rubber Spray + Salty Water = Instant Surface Cure= Instant Surface Cure

No Respirator RequiredNo Respirator RequiredNo No VOCVOC’’ss

Features and Benefits of our Features and Benefits of our CoatingCoating

Productivity Productivity –– Can be 1/3rd the prep Can be 1/3rd the prep time time –– No GrindingNo GrindingCost effective compared to Epoxy or Cost effective compared to Epoxy or othersothersInstant Setting Instant Setting –– No Wash OffNo Wash OffNO NO VOCVOC’’ss –– Environmentally friendlyEnvironmentally friendlyCorrosion resistant Corrosion resistant –– Rust and AcidsRust and AcidsImpact Resistant Impact Resistant

Completed Thickener Tank with Completed Thickener Tank with Filter Building in BackgroundFilter Building in Background

Thickener TankThickener Tank

Bottom of Thickener TankBottom of Thickener Tank

Thickener EquipmentThickener Equipment

Safety First ScaffoldingSafety First Scaffolding

Thickener RakesThickener Rakes

Upper Level Mill Site Thickener Upper Level Mill Site Thickener TanksTanks

““MolyMoly”” Tank with Tank with ““MolyMoly””Thickener behindThickener behind

““MolyMoly”” TankTank

Corrosion and Impact Protection for Corrosion and Impact Protection for the the ““ChuteChute”” in the Filter Building.in the Filter Building.

Blue Painted FilterBlue Painted Filter

Close Up of FilterClose Up of FilterCoating under Blue FilterCoating under Blue Filter

Chute Under FiltersChute Under FiltersImpact Protection and Impact Protection and Corrosion ProtectionCorrosion Protection

Area of Coated ProtectionArea of Coated Protection

Close UpClose Up

Extra Work on Existing TanksExtra Work on Existing Tanks

Testing for Gas and Bats! in Testing for Gas and Bats! in Existing TankExisting Tank

Existing Tank Repair WorkExisting Tank Repair WorkPower Wash Plate and Then Power Wash Plate and Then

Coat with Coat with ¾”¾” of Rubber Spray of Rubber Spray or LRI (Vezlar) or LRI (Vezlar)

AMEC Engineering ContactsAMEC Engineering ContactsMauro (Mo) DanielleMauro (Mo) Daniellemo.daniele@amec.commo.daniele@amec.comJerry FolkJerry FolkJerry.Folk@amec.comJerry.Folk@amec.com