MITSUBISHI ELECTRIC CORPORATIONPUBLIC RELATIONS DIVISION
7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo, 100-8310 Japan

No. 3421
Media Inquiries
Public Relations Division
Mitsubishi Electric Corporation
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Mitsubishi Electric Moves to Reform its Quality Culture
TOKYO, July 2, 2021 – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that, in responseto the discovery (disclosed June 30, 2021) of improper testing of HVAC (Heating, Ventilation and Air
Conditioning systems) for railcars and other products for railcars manufactured at the company’s Nagasaki
Works (Togitsu-Cho, Nishisonogi-Gun, Nagasaki Prefecture), it has established an emergency response
division led by the company president to investigate the facts surrounding the improper conduct, elucidate thecauses and formulate measures for preventing any recurrence, as well as implement reforms in the company’squality culture.
Company-wide Structures for Strengthening Quality Control
To date, Mitsubishi Electric has inspected its own company and subsidiaries in relation to improper conduct
concerning quality on three occasions (FY2017, FY2018 and FY2019–2020).
The company-wide inspection conducted between FY2019 and FY2020, in particular, was informed by pastexperiences and covered all of Mitsubishi Electric’s domestic business sites as well as 121 subsidiaries. Theprocess involved on-site inspections of quality data by Mitsubishi Electric divisions and subsidiaries, andobjective verifications by an internal inspection team formed from Mitsubishi Electric’s Corporate Auditing
Division, Corporate Strategic Planning Division, Corporate Quality Assurance Planning Department, R&D
Centers, and other related divisions.
Accordingly, this new discovery that other product inspections were conducted improperly is cause for great
concern and much regret, which is why the company established the emergency response division led by thecompany president today. In addition, the company will set up an investigative committee chaired by an
external lawyer to liaise with the board of directors’ Audit Committee, aiming to incorporate external
perspectives into the process of clarifying the current situation. The committee will conduct a company-wide
investigation of the facts surrounding the improper conduct and elucidate the causes, based on which it will
formulate recommendations for preventing any recurrence.

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The emergency response division will receive reports and recommendations from the investigative committee,
based on which it will establish and implement reforms in the company’s quality culture.
Future Schedule
By this coming September, Mitsubishi Electric expects to announce the results of the investigation of thematter of improper testing in its Nagasaki Works together with measures aimed at preventing any recurrence.
The investigation will be carried out across all company divisions simultaneously and the announcement will
follow as soon as possible once the process is complete.
###About Mitsubishi Electric Corporation
With 100 years of experience in providing reliable, high-quality products, Mitsubishi Electric Corporation(TOKYO: 6503) is a recognized world leader in the manufacture, marketing and sales of electrical andelectronic equipment used in information processing and communications, space development and satellitecommunications, consumer electronics, industrial technology, energy, transportation and building equipment.
Mitsubishi Electric enriches society with technology in the spirit of its “Changes for the Better.” The company
recorded a revenue of 4,191.4 billion yen (U.S.$ 37.8 billion*) in the fiscal year ended March 31, 2021. For
more information, please visit www.MitsubishiElectric.com*U.S. dollar amounts are translated from yen at the rate of ¥111=U.S.$1, the approximate rate on the Tokyo
Foreign Exchange Market on March 31, 2021

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