Sole Korean SiC Power Semiconductor IDM.Parent Company : SK Inc. (Shareholding ratio 98%)[Major Career]1. Management Upgrade - Post Merger Integration of SK Powetech to SK Group (2022~)2. Operating Cross-function TF - SiC MOSFET mass production prepration TF3. Invenstment Management4. Management Plan/ Establishement of KPIs

Specialized company in manufacturing semiconductor suabstrate (Leadframe, BGA), major clients including Samsung Electronics, SK Hynix, Infineon (formerly Samsung Techwin Inc.)[Major Career]1. Establishing of mid-to long-term Plan(~2028)2. New Business Review and Market Research(MI)3. Investment Management4. Management Planning

[SCM strategy/business]• The main task - SCM analysis - SAP ERP efficiency improvement: Proposal request, quotation request, contract conclusion, purchase order, etc. - Cost reduction through strategic purchase - SCM policy establishment and application - Establish and apply compliance policy• Major Achievements - SCM Localization: Domesticization and application of the headquarters SCM - 2018.08~2019.07: 73% reduction in total purchase cost through product change and process improvement (sanitary products) - 2018.08~2019.07: 36% reduction in total purchase cost through change of company and product (consumable vinyls) - Improvement of inventory turnover days 3.8 days → 2.9 days (-0.9 days, -24%)[Business related tasks]• Main task - Market and competitor analysis - BM and cooperation plan establishment - Writing a proposal• Major Achievements - Establishment of supply line for overseas manufacturers of vehicle parts and outsourcing products: (30% reduction compared to the previous version) - Establishment of food truck supply line for in-flight meals: Supply of optimal truck specifications through direct sales of overseas truck manufacturers[Legal and contract management]• Adjustment and management of major contracts such as leases and partners• Legal dispute-related work• Performing license-related tasks such as airport construction• Construction and IT-related estimates and contracts[Communications]• Group companies: Regular reports on business performance, management plans, etc. to the Germany headquarters and Hong Kong regional headquarters• External: Management of domestic/overseas suppliers, partners, and customers

[Business Planning]• Business planning in charge of coffee franchise brand(Angelinus) (performance, planning, management of competitors, etc.) and preparation of coffee-related data and papers for internal and external reports - Writing management performance bimonthly• Management plan preparation: Create sales plan and make adjustments • Competitor Management: Competitor market research and performance management[Preparation of management data]• Preparation of data for reporting to group HQ and various superior organizations - Management performance data: Preparation of supporting data for decision-making for the group chairman, group board members and CEO - Preparation of issue-related papers: Korea McDonald's merger (2016), small store concept (2017), budget reduction plan (2018)• Management of company-wide key indicators: sales, PL, number of stores, personnel, labor costs, etc. [Market research]• Conduct market research for new business - Review of introduction of In-N-Out Burger (2018), review of acquisition of Pasteur Milk Bar (2017)[Main Communication]• Communication between group HQ and affiliates - Legal review of contracts between subsidiaries of the group (joint business promotion fee, management consulting fee, brand royalty, etc.) and communication[Information protection]• Information protection work (2017.02 ~ 2018.06) - Prepare and respond to the 2017 group information security examination, manage various information security issues - Review of introduction of next-generation ERP system