ITEM 4.01
CHANGES IN REGISTRANT’S CERTIFYING ACCOUNTANT
(a)
Dismissal of Independent Registered Public Accounting Firm
On March 25, 2019, the Audit Committee (the “Audit Committee”) of the Board of Directors (the “Board”) of Advanced Energy Industries, Inc. (the “Company”) dismissed Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm, effective immediately, and provided Grant Thornton with notice of such dismissal.
The audit reports of Grant Thornton on the Company’s consolidated financial statements for each of the two most recent fiscal years ended December 31, 2018 and December 31, 2017 did not contain an adverse opinion or a disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principles.
During the Company’s two most recent fiscal years ended December 31, 2018 and December 31, 2017, and during the subsequent interim period through March 25, 2019, (i) there were no disagreements (as that term is described in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) with Grant Thornton on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure, which disagreement(s), if not resolved to Grant Thornton’s satisfaction, would have caused Grant Thornton to make reference to the subject matter of the disagreement(s) in connection with its reports, and (ii) there were no “reportable events” (as that term is defined in Item 304(a)(1)(v) of Regulation S-K).
The Company provided Grant Thornton with a copy of the disclosures contained in this section of this Current Report on Form 8-K (this “Report”) prior to filing this Report with the Securities and Exchange Commission (the “SEC”). The Company requested that Grant Thornton furnish it with a letter addressed to the SEC stating whether Grant Thornton agrees with the statements made by the Company regarding Grant Thornton in this Report and, if not, stating the respects in which it does not agree. A copy of Grant Thornton’s letter dated March 27, 2019 to the SEC, stating that it agrees with the statements made concerning their firm in this Report, is filed as Exhibit 16.1 to this Report.
(b)
Engagement of Independent Registered Public Accounting Firm
On March 27, 2019, the Company engaged Ernst & Young LLP (“E&Y”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2019, which engagement was approved by the Audit Committee and effective on March 27, 2019.
During the Company’s two most recent fiscal years ended December 31, 2018 and December 31, 2017, and during the subsequent interim period through March 27, 2019, neither the Company, nor anyone on its behalf, consulted E&Y regarding either (i) the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, and neither a written report nor oral advice was provided to the Company that E&Y concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing, or financial reporting issue, or (ii) any matter that was either the subject of a “disagreement” (as defined in Regulation S-K Item 304(a)(1)(iv)) or a “reportable event” (as defined in Regulation S-K Item 304(a)(1)(v)).