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To whom it may concern

Dear Sir

I sincerely apologize for causing all of you a great nuisance and worry by a problem of our inappropriate accounting.
As I submit "an improvement report" about this matter to the Tokyo Stock Exchange from Nippon Carbide Industries Co., Inc. which is a parent company today (on March 24), I will tell you.
I hope that I have understanding and encouragement as I carry out recurrence preventive measures against reinforcement of compliance education and the control in business processes, review of the management system, the organization, re-maintenance of the inside report system, corporate culture reform steadily with a parent company continuously in the future and will make every possible effort for recovery of thorough and the trust of the compliance.

kinhaku

March 24, 2017
Diamond Engineering
President Yoshito Hara