February 14, 2020
Denka Company Limited

Notice Regarding Litigation Against US Subsidiary
Denka Company Limited (Denka) announced that several lawsuits have been brought against its U.S.
subsidiary, Denka Performance Elastomer LLC (DPE; Denka’s stake in DPE is 70%), and DuPont deNemours, Inc. and its affiliates (DuPont), as described below:
1. Court and date of litigation(1) Court:

The 40th Judicial District Court, State of the Louisiana, United States(2) Date of Filing:

January 27, 2020

2. Overview of parties who filed lawsuits(1) Plaintiffs:

A sum total of 908 individuals who reside in the area around the DPE factory;
There are 10 separate written complaints, each of which has similar claims.

(2) Location:

State of Louisiana, the United States

3. Cause and background of litigation
The plaintiffs are alleging in the lawsuits that they are suffering physical, property and mental damage
from chloroprene monomer emitted from the factory that manufactures Neoprene. The factory is locatedin the State of Louisiana in the US and was acquired by DPE from DuPont in November 2015 after
DuPont started the operation in 1969.
4. Details of litigation
The plaintiffs are seeking damages with an upper limit of $50,000 USD per plaintiff from DPE andDuPont.
In relation to these legal cases, 8 lawsuits — each of which has similar claims from other plaintiffs —have previously been brought against DPE and DuPont and remain pending. The total sum of the numberof plaintiffs in the 8 cases is 6,308.
5. Outline of DPE(1) Company name:

Denka Performance Elastomer LLC(2) Location:

State of Louisiana, USA(3) Representative:

Kazuo Takahashi, President & CEO(4) Content of business:

Manufacture and sale of synthetic rubber (neoprene)(5) Capital:$62 million USD

6. Future outlook
DPE, upon a careful examination of the content of the written complaints, will consider an appropriate
response to the litigation.
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DPE adheres to regulatory emission standards for chloroprene monomer in its operations and has
succeeded in drastically curbing emissions. DPE has also asked EPA to reconsider the current toxicity
assessments, and the EPA has accepted and will review the new evaluation method which DPE submittedto EPA.
At the present time, DPE’s business operations have not been notably affected by these legal cases andother related litigations. The litigation’s impact on Denka’s consolidated performance is unknown at thepresent time. Further disclosures will be released promptly if any matters requiring disclosure should
occur as a result of careful examination in the future.
About Denka: Denka is a chemical manufacturer headquartered in Chuo-ku, Tokyo. The company
specializes in developing business activities on a global scale across a wide range of fields, from inorganicand organic chemicals, to electronic materials and pharmaceuticals. Founded in 1915, Denka has steadily
continued to develop and manufacture products that contribute to the development of society by fully
utilizing its unique concepts and technological capabilities. Upholding its corporate slogan, “Possibility ofChemistry,” the company and its president, Manabu Yamamoto, are committed to contributing to the sounddevelopment of society while sincerely tackling the challenges that society is now confronting.

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