Exhibit 6.2 Classification of B2B Exchanges Direct Indirect(MRO) (2) Vertical Horizontal Distributors E-Distributors Systematicplastics.com mro. com Sourcing epapertrade. com grainger. com Methods:aggregation,iFindmro.com fixed/negotiated prices Methods: Aggregation fixed/negotiated prices (3) (4) Vertical Horizontal Exchanges EXchanges Spot isteelasia. com employease. com Sourcing chemconnect. com aribasn Methods: Matching, Methods: Matching dynamic pricing dynamic pricing Electronic Commerc Prentice Hall 2006Electronic Commerce Prentice Hall © 2006 7 Exhibit 6.2 Classification of B2B Exchanges