HOLLOW FIBER MEMBRANE FILTER “CLEANSUI” MITSUBISHI RAYON CLEANSUI CO., LTD.

Contents 1.Company Overview 2.Hollow Fiber Membrane Filter 3.“CLEANSUI” 4.Proposal

1. Company Overview

Mitsubishi Rayon Business Structure

Mitsubishi Rayon sales and operational income

Subsidiaries and Affiliates （ Overseas ） United States - Coating resins plant (TX) - Carbon fiber plant (CA) - Mitsubishi Rayon America Thailand - MMA plant - PMMA resin plant - MRC Asia (sales rep.) Indonesia - Coating resin plant China - MMA plant. - Sheet plant. - PMMA resin plant. - DMF plant - Functional monomers plant. - MRC Shanghai (sales rep.) - MRC Hong-Kong (sales rep.) Korea - PMMA resin plant Japan Otake - MMA & Higher esters plant - Sheet plant - PMMA resin plant - Acrylic resins plant Toyama - Sheet plant - PMMA resin plant - Optical fiber plant Toyohashi - Hollow fiber plant - Film plant - Polyester plant - Carbon fiber Koda Plant - Water purifier plant Yokohama - Coating resin plant - Prism sheet plant

Management Organization Three Business Operation Groups Fibers Operations Chemical & Plastics Operations Carbon Fiber & Composite Materials,Membranes and Others MITSUBISHI RAYON CLEANSUI CO., LTD. Chemicals Plastics Coating resins & modifiers Information Materials Acrylic Fibers Textiles Others

MITSUBISHI RAYON CLEANSUI CO., LTD. A subsidiary of MITSUBISHI RAYON CO., LTD. Place: Tokyo, Japan Products: Water purifier, Hollow fiber membrane filter

2. Hollow Fiber Membrane Filter

Hollow fiber membrane Hollow fiber membrane is (has) - extremely thin straw-shaped hollow fibers, - countless ultra-fine slit-shaped pores, - made from polyethylene. - Strong and flexible, - safe and clean, - no solvents or plasticizers in it.

Hollow fiber membrane - Pore size: 0.01 micro meter to 0.1 micro meter. - Structure: Multi-slit-like micro porous. - Cut off: Bacteria and suspended solids collide. Cut off 0.1 micro meter at outer surface of the membrane. Three dimensional structure of the membrane (SEM photograph)

Hollow fiber membrane Hollow fiber membrane can cut off bacteria like Pseudomonas diminuta and E-coli at the surface. Pseudomonas diminuta E. Coli It is the smallest bacteria. *Size = 0.2 um

Water Filtration by Hollow Fiber Membrane Cross-sectional view

CLEANSUI

3. “CLEANSUI”

- Since 1984 when MRC developed CLEANSUI, it has been the most popular water filter using hollow fiber membranes in the world. “CLEANSUI” Drinking of Water Filter - CLEANSUI and its technology are being applied to home use, medical use and industrial areas. ex. - substance exchange, - artificial kidneys, - hospital sterile washing units, - water treatment facilities, etc.

Mitsubishi Rayon Cleansui is a pioneer and the first developer of home use water filters using hollow fiber membrane. “CLEANSUI” Drinking water filter The Mitsubishi Rayon Cleansui can provide wide range of products to customers by extensive development.

4. Proposal

Proposal Mitsubishi Rayon Cleansui would like to supply 1.CLEANSUI’s cartridge (with your product) -Hollow fiber membrane, Activated carbon & Ceramic/Ion exchange resin combined filter -Faucet-mounted type, Pitcher type, Counter on type, Built-in type etc. 2. Hollow fiber membrane filter -Hollow fiber membrane filter module for your own brand cartridge filter

Proposal of benefit for both parties Win-win business in the World. MRC’s benefit - New market in the World. by providing module or cartridge, Your benefit - New business & New customer in water filter for home use field. - Expand total business in water filter market. - The cartridge business can call back the important customer repeating in your sales counter.

Proposal You can sell your - water filters using our cartridge, - same filter system as CLEANSUI with your logo by your own bland. These water filters can be - absolutely removable over 0.2 micro meter particles, like Cryptosporidium, Bacteria. - easy in handling as assembling. - available with usual tap water pressure. - Even only gravity can be filtered. - reasonable price.