1. Scania Siam Co., Ltd. Parts Department SERVICE EXCHANGE &CORE Prepared by Sirikorn S.Date: 30 May 2006

2. Scania Siam Co., Ltd. Parts Department Admin. SERVICE EXCHANGE & CORE Send service exchange BelgiumSweden Ordering SCS-Parts Dept.Customer Receive serv.exc. Parts inquiry Quotation Adjust core in stock via inventory sheet Issue invoice serv.exc.+ core Receive inv. serv.exc.+ core SCS Account Dept. Confirm order Issue Core inv. Goods Receipt by GCxxxxxx Control core balance Adjust core out stock via invent sheet for the sold items Receive invent.sheet Receive GCxxxxxxx Receive GFxxxxxx Flow Receive inv & invent.sheet Receive invent.sheet Parts

3. Scania Siam Co., Ltd. Parts Department Ordering Admin SERVICE EXCHANGE & CORE Sweden Warehouse SCS-Parts Dept.Customer Return core and purchase new serv.exc. Issue invoice serv.exc.+ core Receive inv. Of serv.exc.& c/n of core SCS Account Dept. Receive Core Summary Prepare to local scrap Control core balance Receive core C/N Return Core Flow Receive inv & c/n Receive core C/N Inspect condition with standard package Accept to repurchase & keep stock C/N core Categorize core for return & local scrap Prepare to return Approval Receive Core & C/N Parts

4. Scania Siam Co., Ltd. Parts Department OrderingWarehouse SERVICE EXCHANGE & CORE Admin. SCS-Parts Dept.Customer Adjust core in stock via inventory sheet Key serv.exc.+ core & print picking list SCS Account Dept. Control core balance Adjust core out stock via invent sheet for the sold items Receive invent.sheet Flow SCS Workshop Order service exchange by selection list Pick up serv.exc Receive invt.sheet & picking list Receive service exchange & picking list Core Receipt by GCxxxxxx Receive GCxxxxxxx Receive invent.sheet Repair & Issue invoice to customer Pick up vehicle & Receive invoice Workshop Receive core inv.from Sweden

5. Scania Siam Co., Ltd. Parts Department Ordering Admin. SERVICE EXCHANGE & CORE Warehouse SCS-Parts Dept.Workshop Return core and order new serv.exc. by selection list Issue invoice serv.exc.+ core Receive serv.exc. SCS Account Dept. Control core balance Return Core Flow Receive inv & c/n Inspect condition Accept to repurchase C/N core Keep core in stock, pick up new serv.exc & print picking list Workshop Sweden Categorize core for return & local scrap Receive Core Summary Approval Receive Core & C/N Prepare to local scrap Prepare to return Receive core C/N

6. Scania Siam Co., Ltd. Parts Department OrderingWarehouse SERVICE EXCHANGE & CORE Admin. SCS-Parts Dept. Adjust core in stock via inventory sheet Issue invoice service exchange & core SCS Account Dept. Control core balance Adjust core out stock via invent sheet for the sold items Receive invent.sheet Flow SSS Admin Order Service Exchange by purchase order Pick up serv.exc Good Receive of Serv. Exc. & core Core Receipt by GCxxxxxx Receive GCxxxxxxx Receive invent.sheet Branch: Ordering Receive core inv.from Sweden Receive invt. Sheet and SSS PO. Receive inv & invent.sheet Keep serv. Exc. In stock

7. Scania Siam Co., Ltd. Parts Department OrderingWarehouse SERVICE EXCHANGE & CORE Admin SCS-Parts Dept.Customer Issue invoice serv.exc.+ core SCS Account Dept. Flow Admin Branch: Direct Sales Head of Branch SSS (Branch) Pick up parts & Keep Core in stock Return core and purchase new serv.exc. Inspect condition with standard package by Head of Branch or authorized person. Accept to repurchase C/N core Receive inv. of serv.exc.& C/N of core Return parts to SCS with Inv. + C/N to cust. with referred SSS PO. Inspect condition with standard package Accept to repurchase & keep stock Control core balance Issue C/N core Receive C/N of core Receive C/N core

8. Scania Siam Co., Ltd. Parts Department OrderingWarehouse SERVICE EXCHANGE & CORE Admin SCS-Parts Dept.Customer Issue invoice serv.exc.+ core SCS Account Dept. Flow Admin Branch: Repair Mechanic SSS (Branch) Pick up parts & Keep Core in stock Vehicle to repair Inspect condition with standard package by Head of Branch or authorized person. Accept to repurchase C/N core Receive inv. of serv.exc.& C/N of core Return parts to SCS with Inv. + C/N to cust. with referred SSS PO. Inspect condition with standard package Accept to repurchase & keep stock Control core balance Issue C/N core Receive C/N of core Receive C/N core Remove core & order new service exchange by selection list