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Mergers, Acquisitions and Restructurings

Mitsui Company offers a variety of services for M&A projects from structure formation to drafting agreements and other documents, to providing comprehensive advice on due diligence and other procedures. These projects include acquisitions of Japanese corporations by foreign-owned corporations, including hostile takeovers, as well as the purchase of domestic companies by domestic enterprises which are frequently public or listed companies.

Our firm also provides services including structuring and conducting legal due diligence, with regard to mergers and acquisitions, and other corporate reorganization, taking advantage of our accumulated experiences and knowledge in the field of leveraged corporate transactions.

Companies Act

Mitsui Company provides wide-ranging advice on matters relating to the Companies Act including incorporation of companies, stock practice, management of the board of directors, management of shareholders' meetings and derivative litigation. In recent years, many important systems for business management, such as purchase of shares by issuers, classified stocks, stock options and companies with committees have been introduced or, and our firm is always ready to advise based on up-to-date expertise and know-how.

Bankruptcy, Reorganization and DIP Finance

Mitsui Company provides advice on reorganization of failed companies and financings of bankrupt entities such as DIP (debtor-in-possession) financing, utilizing our experience as official receiver and trustee for bankrupt companies, and handling complex financing projects and M&A transactions.

Our firm also provides advice on the disposal of failed entity assets and receivables.


The essence of compliance is to ensure the corporate management based on rules. The "Rules" here are not limited to applicable laws and regulations but include rules in a broader context such as company's internal rules and management plans. Therefore, a company is required to establish not only a system of complying with laws and regulations but also a system of conducting management based on its internal rules and management plans.

Conducting corporate management under the Rules, examining whether the management is conducted in accordance with the Rules, and forming the system to promptly detect and correct in the case of violation of the Rules - these are the essence of compliance.

Mitsui Company provides wide-ranging advice on compliance matters including the formation of compliance management systems, establishment of a compliance program and responding to events of violation.

General Corporate Legal Affairs including International Transactions, Intellectual Property, Venture Business

Mitsui Company provides advice on domestic commercial transactions, tax, antitrust, labor and employment, and shareholders’ and board of director's meetings. In addition, we assist cross-border business in joint ventures, licenses and distributorships, as well as various non-typical agreements.

Our firm has engaged in settlement of disputes concerning patents, trademarks, copyrights, trade secrets (know-how) and other intellectual properties as well as preservation, administration and operation of these rights.

We provide advice to venture companies in early stages and other various stages on financing activities, IPOs and M&As, as well as general corporate legal affairs drawing on experience in all our practice areas including IPOs in new markets, venture finance, private equity and M&As.

In line with recent, drastic changes in employment circumstances and the trend towards personnel system reforms, Mitsui Company is actively involved in reforming and introducing new models for personnel and remuneration. In the area of pension plans, we provide wide-ranging advice on the introduction and operation of various types of annuity systems including defined contribution pension plans.