• Led the merger of Yanolja Platform, the B2C business arm of Yanolja Group, and InterparkTriple via Merger through Division, launching Korea’s No.1 OTA player ‘Nol Universe’ and creating corporate and operating synergies• Established and executed the B2C business strategy of Yanolja Platform including domestic/overseas accommodation, flight, leisure, tickets, etc.• Developed new businesses and partnerships with global OTAs, leisure/ticket providers, payments service provider, etc. and strengthened the core capabilities of Yanolja as the No.1 travel tech company• Restructured the Business Division in charge of motel and pension sales – the largest sales team consisting of 150 workforce - and drove the increase in GMV, revenue, and EBIT, contributing the growth of the overall B2C business

1. Restructuring• Established and executed the company-rebuilding (turnaround) strategy by restructuring less competitive businesses, enhancing productivity, and launching B2C fintech services, resulting in achieving the highest OP margin in 2021• Introduced new mission/vision and core values including ‘obsession to customer value’2. Corporate Strategy• Established corporate strategy including product roadmap, G2M, inorganic growth plan, etc.• Launched ‘InvestingView’, an investing platform with real-time financial market info, stock heat maps, experts insights, community; made MOUs with leading securities firms• Differentiated 'ZUM portal', the 3rd largest portal in Korea with 7M MAU, by providing ‘ZUM Invest’ achieving 90K DAU• Released 'GET STOCK', OTC MTS for unlisted stocks, where investors could acquire enriched information and trade unicorn companies before IPO• Acquired the financial license from ‘Financial Services Commission’ to provide the personalized financial solution based on AI and big data analysis• Conducted feasibility study of blockchain businesses and partnered with web3 players; delivered insight on metaverse to National Policy Committee and at ‘Future ICT Forum 2022’ hosted by Financial News3. Corporate Development & Subsidiary Management• Executed commercial due diligence and management meetings with target companies in IT, AdTech, Fintech, etc.• Managed subsidiaries; enhanced profitability of asset management firm ‘Exponential Investments’, and liquidated an unprofitable business arm for social investing app ‘Project Vanilla’4. Operational Enhancement• Managed strategic partnerships with 70+ media outlet including Yonhapnews to enrich contents coverage; re-negotiated terms and conditions with strategic partners such as Kakao and reduced the recurring costs by 15%• Enhanced marketing productivity by leveraging AI/ML customer behavior analysis and achieved significant CTR increase of 50~200% per ad; improved sales efficiency

1. Corporate Strategy & Execution • Launched ‘Stock Plus Unlisted’, the Korea’s first OTC MTS for unlisted stocks, which facilitated investors to invest in 4000+ private companies; achieved transaction volume of USD 1bn and acquired 1million users within 2.5 years • Resolved regulatory issue and established a basis to receive transaction fees generated from ‘Stock Plus Unlisted’ from a partnering securities firm by being granted regulatory exception from Financial Services Commission • Enhanced ‘Stock Plus’ (MTS), the largest stock trading community with 6 million users, by providing the U.S. stock trading feature in alliance with KB Securities and created new revenue; provided insights on NASDAQ companies 2. Corporate Development & Investments • Led the series A investment in a fast-growing contents provider offering art classes from deal sourcing to closing, whose corporate value doubled within two years • Led the inorganic grow strategy and conducted commercial due diligence and management meetings for M&A and investments (i.e. BS Rental, Travel Wallet) 3. Subsidiary Management • Facilitated the blockchain business of a subsidiary ‘RAMDA 256’ by providing strategic insights • Established business strategy and managed asset management app for a subsidiary ‘Dunamu Investment’

• Developed business plan for digital personal finance management (PFM) service including account aggregation and spend management for leading financial group in Korea covering banking, card, securities and insurance• Established new business plan to launch a new internet bank for Fintech Unicorn including product/service strategy, marketing strategy, financial modeling, and risk management plan• Provided commercial due diligence on the largest Korean financial group for USD 0.7 billion investment by PE firm• Recommended optimal acquisition strategy to PE firm which considered acquiring a leading general agency (GA)• Developed procurement strategy for global electric vehicle (EV) battery manufacturer including strategic sourcing, vendor management, organization restructuring and talent management • Conducted commercial due diligence on leading 3D glass machine manufacturer for smartphone for PE firm

• Provided recommendation on establishing long-term business strategy and restructuring corporate governance structure of the largest local bank by conducting external/internal analyses, interviews, and benchmarking study• Advised Asian financial institution on improving competitiveness of investment fund with USD 90 billion AUM• Developed leading local bank’s mobile banking strategy including revamping existing banking app service and offering innovative solutions, and digital marketing strategy for their launch of new real estate platform• Facilitated top tier Korean bank’s corporate banking and global transaction banking (GTB) strategy in Southeast Asia by providing macro/industry/country/competitive analyses and customized solutions• Provided recommendation on client acquisition strategy of leading disruptive digital insurer in Korea

• Provided fairness opinion to Multiplus, a Brazilian loyalty program service provider for TAM airlines, for its business strategy including M&A and organic growth; conducted valuation analysis and real option modeling• Managed valuation analysis by measuring key performance metrics and conducting peer analysis for aircraft leasing, oil&gas, manufacturing, telecommunication, and pharmaceutical industries in the U.S. and the Caribbean• Implemented EVA or Economic Value Added, a value-based management system, to U.S. corporate clients including Regal Beloit for their performance measurement, compensation plan, and value creation• Prepared business proposals for multinational corporate clients including Boeing, Danaher, GE, and AirCastle• Developed internal credit rating model by incorporating EVA into traditional credit rating methodology; launched risk management practice including credit and operational risk to expand product spectrum

• Performed valuation analysis on Shake Shack by utilizing discounted cash flow, comparable public companies, and precedent transactions methodologies; attended roadshow; analyzed fine-dining restaurant industry trends• Conducted IPO valuation analysis for tech and healthcare companies including GoDaddy and Bellerophon by attending management meeting, and confirmed financials and forecasts through interaction with management

• Built monitoring tool for cash management pricing exceptions, analyzed performance and profitability, and executed re-pricing strategy to capture additional revenue growth opportunity of USD 0.2 million across the U.S.• Facilitated new product launch by executing market research and coordinating with other teams, helping Citi maintain strong liquidity ratio under Basel III• Developed marketing tool and distributed to all sales teams, helping bankers find extra cross-sell opportunities• Built new balance reporting for weekly banker updates and drove decision-making process for senior management

• Facilitated the Samsung’s global business strategy by resolving their cross-border business issues as the first Global Service Manager for the client; recommended Citi’s advanced banking solutions; enhanced relationship• Managed 140+ global teams to service key cash/FX management products for Emerging Market Champions clients

• Identified partnership opportunities with Payment Gateway firms including Danal and KG Inicis, closed deals to service Citi’s cash products; prepared legal documents; raised annual revenue by USD 0.5 million• Expanded deposit volume by USD 4 billion (+20%) in three months by analyzing deposit trends and providing tailored solutions; managed Citi’s liquidity portfolio of USD 40 billion; received ‘Institutional Client Group Innovation Award’• Launched new service to collect US visa interview fees; prepared legal documents and contracts; negotiated terms and conditions with counterparties; led global team of 10 across NY, Dublin, and Hong Kong• Provided mobile collection service for corporate clients including Coca Cola and Philip Morris with senior product manager; launched the first mobile collection service in the Asia Pacific region at Citi• Provided virtual account product service for corporate clients to more effectively reconcile receivables through cross-border transactions by leading regional teams in Hong Kong• Launched ‘Cash Pickup & Delivery Service’ in Nov. 2010 to facilitate cash collections of multinational companies, provided the service to Louis Vuitton, Thai Airways and L’Oreal, and achieved additional interest revenue of USD 2 million• Managed Citi Corporate Card and conducted market research for all local competitors to enhance Citi's credit card service• Managed product P&L for major clients including Microsoft, Louis Vuitton, L'Oreal, Warner Bros., and BMW; met with management, proposed additional cash products, and increased product revenue by 30%

• Provided business loan of USD 30 million using interest rate swaps to Neowiz Games, a leading game company in the Korean market, supported acquisition financing for taking over GameOn in Japan, achieved revenue of USD 2 million from loan interest and IRS (interest rate swaps) spread• Increased the credit line of Seohee Construction, a medium-sized company, from USD 15 million to USD 20 million; recognized as one of the successful cases of policy adaptation in the local market during financial crisis• Issued Standby Letter of Credit (SLOC) of USD 10 million to help eB Card, a Korean payment system provider, establish public transportation card system in Quito, Ecuador, and facilitated their business expansion strategy• Managed 120+ corporate clients’ loan portfolio of both asset-based lending and unsecured loan; kept no credit loss• Offered trade finance products including L/C, L/G, factoring or A/R financing to multinational and local clients• Selected for Citi’s MAGIC (Management Associate Graduate Integrated Curriculum) Program typically reserved for MBA graduates, and successfully completed the program in Shanghai in 2009

• Conducted feasibility analysis for significant overseas investments resulting in acquisition of Thainox in Thailand and establishment of joint venture for a nickel mine in New Caledonia• Developed process to consolidate budgeting between POSCO’s HQ and overseas subsidiaries, Qingdao Pohang Stainless Steel and Zhangjiagang Pohang Stainless Steel, in China• Generated division’s monthly performance report to enhance management’s investment process

• Supervised overall logistics for the 2005 Cruise Training Forces; nominated ‘Best Navy Officer’• Implemented base enhancement plan and doubled the administration’s distribution capability• Supported Korea-US joint military campaigns along the northern limit line (NLL)