Second Printing Decided Within Days of Release! 'Mitsubishi, Mitsui, and Sumitomo as Education' Compiled: Unwritten Rules, Personalities, and Power Balance of the Former Three Major Zaibatsu That One Would Be Ashamed Not to Know.

Asuka Shinsha Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Naohisa Doi) is pleased to announce that the book 'Mitsubishi, Mitsui, and Sumitomo as Education' (Author: Kiyohiro Yamakawa) has been decided for a second printing due to strong sales immediately after its release!

With over 30 years of experience as an economics journalist, the author leverages their knowledge to conduct a comprehensive investigation, covering essential knowledge about Mitsubishi, Mitsui, and Sumitomo!

Have you ever heard rules like, 'When entertaining guests from the Mitsubishi group, you must serve Kirin Beer'?

In fact, Kirin Beer is part of the Mitsubishi group. If you are conscious of the 'group,' finding a restaurant that handles Kirin Beer is an important skill for a business person.

Conversely, if you choose a restaurant that serves Sapporo Beer, which is affiliated with Mitsui, for an entertainment setting... while it may not decide everything, it could give the impression that you are 'someone who doesn't understand'.

In this way, there are many 'origins and relationships that working adults should know' within the three major groups: Mitsubishi, Mitsui, and Sumitomo.

This book comprehensively explains each group with the volume befitting an 'educational book,' covering not only their history but also details of major companies, their origins and relationships, rankings based on 'numbers' such as current stock prices and employee numbers, and even university graduate employment rankings.

Why does Mitsubishi prioritize 'organization'? Why does Mitsui have a 'free atmosphere'? Why do you feel 'strong bonds' in Sumitomo? Understanding the history of each group allows for a deeper comprehension of their characters.

'Recommended by Azabu Keiba-jo, author of 'Reiwa Gannen no Jinsei Game'!'

I wish I had read this during my job hunt! It's historical study, it's geopolitics... An astonishing book that has verbalized the 'atmosphere' of the Japanese economy.

This is a business guide for those about to enter society and for those working in Japan's central business world! It's packed with knowledge that you 'know but don't know'.

**Table of Contents** **Foreword – Why Mitsubishi, Mitsui, and Sumitomo are Necessary as Education**

**Chapter 1: The Characters of the Three Groups Understood Through History** The 'Organizational Mitsubishi' That Grew with the Nation The 'People's Mitsui' Resulting from a Manager-Centric System The 'Bond's Sumitomo' That Coexists Rational Management and 'Family Rules' A Thorough Comparison of the Unique Colors of Mitsubishi, Mitsui, and Sumitomo Revealed Through History

**Chapter 2: Positions of Major Companies in the Mitsubishi Group** Analyzing the Strongest Lineup of the 'Organizational Mitsubishi' Known for Its Ironclad Unity Mitsubishi Group ① Mitsubishi Heavy Industries: A Leading Heavy Industry Manufacturer in Japan Mitsubishi Group ② Mitsubishi Corporation: The Global 'Trading Company' Handling Everything from Cup Noodles to Space Mitsubishi Group ③ Mitsubishi UFJ Bank: The Crossroads of Tradition and Transformation for the Red Bank Mitsubishi Group ④ Mitsubishi Estate: The Owner of Marunouchi Challenges Japan's Tallest Building Mitsubishi Group ⑤ Mitsubishi Electric: What Was Gained and Lost by Breaking Free from a Monopolistic Business Mitsubishi Group ⑥ Mitsubishi UFJ Trust and Banking: The 'Unsung Hero' of Marunouchi Mitsubishi Group ⑦ Mitsubishi Materials: The 'Materials Trading Company' Supporting Coins and Rockets Mitsubishi Group ⑧ Mitsubishi Chemical Group: The Overly Complex History of a 'Giant That Keeps Changing Its Name' Mitsubishi Group ⑨ Tokio Marine Holdings: The Insurance Industry Top Player That Doesn't Bear the 'Mitsubishi' Name Mitsubishi Group ⑩ Meiji Yasuda Life Insurance: An Unusual Insurance Company Formed by the Integration of Former Two Zaibatsu Mitsubishi Group ⑪ NYK Line: The 'Shipping NYK's' Trajectory, Though the Group's Origin, It Doesn't Bear the 'Mitsubishi' Name Mitsubishi Group ⑫ AGC: The Lone Wolf That Has Persisted Since Its 'Asahi Glass' Days Mitsubishi Group ⑬ Kirin Holdings: The Leading Food Company in the Group Bets on 'Health Science'

**Chapter 3: Positions of Major Companies in the Mitsui Group** The 'People's Mitsui,' Where Personalities Clash: The Strength of a Free and Open Federation Mitsui Group ① Mitsui & Co.: The Group's Representative, Embodying the 'People's Mitsui' Mitsui Group ② Mitsui Fudosan: The Pioneer of 'Skyscrapers' and a Key Player in Nihonbashi Mitsui Group ③ Sumitomo Mitsui Banking Corporation: The Forbidden Merger of Two Major Zaibatsu Mitsui Group ④ Sumitomo Mitsui Trust Bank: The Nation's Only Dedicated Professional Group Mitsui Group ⑤ Mitsui Chemicals: A Leader Pursuing Mitsubishi and Differentiating Itself from Sumitomo Mitsui Group ⑥ Mitsui E&S: Abandoning its 'Shipbuilding' Roots to Become an Engine Manufacturer with World's Top Share Mitsui Group ⑦ Mitsui Mining & Smelting: Facing Industrial Disease and the Comeback of 'Ultra-Thin Copper Foil' Supporting Smartphones Mitsui Group ⑧ Toray: From a Declining Industry to the Development of 'Heattech' Mitsui Group ⑨ Japan Steel Works: The Technology of a Long-Standing Company Supporting Everything from 'Cannons' to 'EV Batteries' Mitsui Group ⑩ Mitsui O.S.K. Lines: The Precursor to 'Mitsui + Sumitomo,' Its Face as 'Mitsui of the Sea' Mitsui Group ⑪ Mitsui Sumitomo Insurance: From Struggles to Find a Merger Partner to Industry No. 1 Mitsui Group ⑫ Mitsui Ocean Development: A Small but Elite Force Supporting Offshore Energy Factories Mitsui Group ⑬ Isetan Mitsukoshi Holdings: Can It Reclaim the Glory of 'Echigoya,' Which Created Japan's Department Stores? Mitsui Group ⑭ Sapporo Holdings: The Land Return Strategy Bet on 'Ebisu'

**Chapter 4: Positions of Major Companies in the Sumitomo Group** The 'Sumitomo of Unity,' Based on Trust and Practical Benefit: Technology and Spirit Supporting the World Sumitomo Group ① Sumitomo Corporation: Rapidly Transforming from 'Not Pursuing Fleeting Profits' to 'Savvy Investor' Sumitomo Group ② Sumitomo Realty & Development: From 'King of Debt' to Tokyo's 'Landlord,' Its Unique Growth Philosophy Sumitomo Group ③ Sumitomo Life Insurance: Challenging the Health Promotion Business with 'Rampaging' Sales Power and 'Vitality' Sumitomo Group ④ Sumitomo Metal Mining: From its 'Origin,' Besshi Copper Mine, to EV Batteries Sumitomo Group ⑤ Sumitomo Chemical: Originating from 'Pollution Control,' Facing Difficulties in the Petrochemical Industry Sumitomo Group ⑥ Sumitomo Forestry: A Sustainable Enterprise Protecting World Forests, Not Just Homes Sumitomo Group ⑦ Sumitomo Heavy Industries: A Heavyweight in the Industrial Equipment World with Roots in 'Besshi' Sumitomo Group ⑧ NEC: Betting on Survival in AI and Consulting Divisions After Defeats in PCs and Semiconductors Sumitomo Group ⑨ Sumitomo Electric Industries: From a 'Wire Manufacturer' to a Technology Company 'Connecting the World' Sumitomo Group ⑩ Sumitomo Rubber Industries: The Capability That Swallowed the British Brand 'Dunlop' Sumitomo Group ⑪ Sumitomo Pharma: Can the Pharmaceutical Major with 'Expired Patents' Pave a Path to Rebirth?

**Chapter 5: The Current Status of the Three Groups Seen Through Numbers** The Numbers Speak Honestly! The Real State of the Three Groups Ranking ① Market Capitalization: Which Companies Are Highly Valued in the Stock Market? Ranking ② Employee Numbers: Which Unexpected Companies Contribute to Japanese Employment? Ranking ③ Overseas Sales Ratio: The 'Global Expansion' Power Beyond Affiliations Ranking ④ Starting Salary: Over 300,000 Yen for Many to Secure Excellent Students! 2025 University Recruitment Rankings for Major Companies Universities ① Trading Companies – Mitsubishi Corporation, Mitsui & Co., Sumitomo Corporation Universities ② Real Estate – Mitsubishi Estate, Mitsui Fudosan, Sumitomo Realty & Development Universities ③ Banks – Mitsubishi UFJ Bank, Sumitomo Mitsui Banking Corporation Universities ④ Non-life Insurance – Tokio Marine & Nichido Fire Insurance, Mitsui Sumitomo Insurance Universities ⑤ Shipping – NYK Line, Mitsui O.S.K. Lines Universities ⑥ Electronics – Mitsubishi Electric, NEC, Sumitomo Electric Industries, Toshiba Universities ⑦ Heavy Industries – Mitsubishi Heavy Industries, Sumitomo Heavy Industries Universities ⑧ Chemicals – Mitsubishi Chemical, Mitsui Chemicals, Sumitomo Chemical

**Author Profile** Kiyohiro Yamakawa (Yamakawa Kiyohiro) Born in 1967 in Tokyo. Graduated from Waseda University's School of Political Science and Economics, Department of Economics, in 1991. Joined Toyo Keizai Inc. and worked as a journalist covering broadcasting, general contractors, banks, convenience stores, travel, and more. Served as Editor-in-Chief of 'Company Handbook Pro 500,' Deputy Editor-in-Chief of 'Company Handbook,' Editor-in-Chief of 'Weekly Toyo Keizai Plus,' and Editor-in-Chief of 'Stock Weekly' and Editorial Committee Member of the 'Company Handbook Online' editorial department. His books include 'The Mystery of Media Mogul Murdoch' (co-authored with Mr. Iwai, Toyo Keizai Inc.) and 'Japan's Top Three Hotels: Imperial, Okura, New Otani' (Gentosha Shinsho).