Sakha Takwa Dien Son

Responsible for managing Piaggio Group ( Piaggio , Vespa , Aprilia , Moto Guzzi ) all purchasing activities direct & indirect.

Responsible for managing chery group ( Chery , Omoda , Jaecoo , Lepas , Icar ) purchasing activities for automotive localization and production support, ensuring cost competitiveness, quality, and on-time delivery. Key responsibilities: • Lead and coordinate purchasing activities for local & overseas suppliers • Manage supplier sourcing, price negotiation, and contract finalization • Support localization strategy to meet cost, quality, and TKDN targets • Coordinate with Engineering, Quality, Production, and Logistics teams • Monitor supplier performance (QCD) and drive continuous improvement • Support new model and mass production readiness Achievement focus: • Cost optimization through strategic sourcing & negotiation • Supplier development aligned with Chery global standards • Stable supply support for production ramp-up • Comply with Government Regulation for IKD Localization • Export support localization

Direct Purchasing role supporting the development of ALVA electric 2-wheelers, focusing on sourcing, supplier development, and localization from early development to mass production. Scope & responsibilities: • Build supplier base for EV 2-wheelers (plastic injection, electrical, metal & general parts) • Manage sourcing & supplier development from RFQ to mass production • Lead cost negotiation, VA/VE activities, and cost breakdown analysis • Coordinate with Engineering, Quality, and Project teams for new product development • Conduct supplier audits and evaluations based on ISO standards • Support localization strategy to improve cost structure and supply stability Key contributions: • Successfully supported EV product development & production ramp-up • Established local suppliers to improve cost competitiveness • Strengthened supplier quality & delivery performance

Part of Hyundai Motor Manufacturing Indonesia (HMMI) purchasing team, responsible for raw material sourcing to support mass production operations. Key responsibilities: • Manage purchasing of raw materials for production needs • Handle price negotiation, supplier management, and contract control • Coordinate with Production Planning, Quality, and Logistics teams • Support SAP ERP purchasing processes and reporting • Monitor supplier performance and cost efficiency Key exposure: • Mass production environment in global automotive OEM • SAP-based purchasing & cost control system • Cross-functional coordination in large-scale manufacturing

Responsible for stamping commodity sourcing and supplier strategy within Toyota global purchasing standards. 1. Sourcing Strategy & Supplier Decision for Stamping Commodity. 2. Cost Assessment & Cost Reduction Quotation Analysis. 3. Stamping Commodity Strategy & Planning. 4. Price Review & Forecast Analysis. 5. Supply Chain Control. Overseas suppliers' audit / meeting experiences : 1. Benchmarking Activity at Stamping Supplier Thailand ( 2016 ) 2. Discuss Sourcing Stamping Supplier Strategy With TMC Designer - Japan ( 2017 ) Overseas Training Experienced 1. International Buyer Training at Toyota Motor Asia Pacific - Thailand ( 2016 ) 2. International Buyer Training at Toyota Motor Corporations - Japan ( 2017 )

Main Responbilities ; 1. Sourcing Strategy & Supplier Decision for Resin&Rubber Commodity. 2. Cost Assessment & Cost Reduction Quotation Analysis. 3. Resin & Rubber Commodity Strategy & Planning. 4. Price Review & Forecast Analysis. 5. Supply Chain Control. Overseas suppliers' audit / meeting experiences (in short summary) : 1. Benchmarking Activity at Rubber Supplier Thailand ( 2014 ) 2. Design & Cost Analysis with Japan Designer - Japan ( 2015 ) Training Experience ; 1. International Buyer Training at Toyota Motor Asia Pacific - Thailand ( 2014 ) 2. International Buyer Training at Toyota Motor Corporations - Japan ( 2015 )