Exhibit 99.1

TTM Technologies, Inc. Reports Fiscal Fourth Quarter and Fiscal 2018 Results

COSTA MESA, CA – February 6, 2019 – TTM Technologies, Inc. (NASDAQ:TTMI), a leading global printed circuit board (“PCB”) and radio frequency (“RF”) components manufacturer, today reported results for the fourth quarter and full year of fiscal 2018, which ended December 31st, 2018.

Fourth Quarter 2018 Highlights

Fiscal Year 2018 Highlights

Fourth Quarter 2018 Financial Results

Net sales for the fourth quarter of 2018 were $711.0 million, compared to $739.3 million in the fourth quarter of 2017 and $755.8 million in the third quarter of 2018.

GAAP operating income for the fourth quarter of 2018 was $42.8 million, compared to $71.0 million in the fourth quarter of 2017 and $54.6 million in the third quarter of 2018.

GAAP net income for the fourth quarter of 2018 was $52.5 million, or $0.42 per diluted share. This compares to $49.2 million, or $0.40 per diluted share, in the fourth quarter of 2017 and $27.0 million, or $0.22 per diluted share, in the third quarter of 2018. The current quarter results reflect the release of a tax valuation allowance of $43.6 million.

On a non-GAAP basis, net income for the fourth quarter of 2018 was $55.0 million, or $0.52 per diluted share. This compares to non-GAAP net income of $61.2 million, or $0.57 per diluted share, for the fourth quarter of 2017 and $55.1 million, or $0.50 per diluted share, in the third quarter of 2018.

Adjusted EBITDA for the fourth quarter of 2018 was $117.4 million, or 16.5 percent of net sales, compared to adjusted EBITDA of $121.7 million, or 16.5 percent of net sales, for the fourth quarter of 2017 and $122.3 million, or 16.2 percent of net sales, for the third quarter of 2018.

“For the fourth quarter, TTM delivered earnings above the high end of guidance, despite softening commercial end markets,” said Tom Edman, CEO of TTM. “We were pleased to see strong year over year growth from the aerospace and defense, computing and medical/industrial/instrumentation end markets that partially offset weakness in our cellular and automotive end markets. Solid operational execution and expense management resulted in our operating margin exceeding expectations.”

Full Year 2018 Financial Results

Net sales for fiscal year 2018 increased to $2.85 billion from $2.66 billion in fiscal year 2017, a 7.1% increase year over year.

GAAP operating income for fiscal year 2018 was $159.1 million, a decrease from GAAP operating income of $212.8 million in fiscal year 2017.

GAAP net income for fiscal year 2018 was $173.6 million, or $1.38 per diluted share, compared to GAAP net income of $124.2 million, or $1.04 per diluted share, for fiscal year 2017. The 2018 results reflect the release of a tax valuation allowance of $118.2 million.

On a non-GAAP basis, net income for fiscal year 2018 was $190.4 million, or $1.76 per diluted share. This compares to fiscal year 2017 non-GAAP net income of $167.1 million, or $1.57 per diluted share.

Adjusted EBITDA for fiscal year 2018 was $438.8 million, or 15.4 percent of net sales, compared to $388.6 million, or 14.6 percent of net sales, for fiscal year 2017.

“2018 validated TTM’s strategy of diversification, differentiation and discipline. We saw solid organic growth in the aerospace and defense, medical, industrial and instrumentation and computing end markets,” continued Edman. “In addition, we closed the acquisition of Anaren which allows us to engage with customers earlier in the design cycle providing differentiated, value added RF solutions.”

Business Outlook

For the first quarter of 2019 TTM estimates that revenue will be in the range of $610 million to $650 million, and non-GAAP net income will be in the range of $0.14 to $0.20 per diluted share.

“In the first quarter of 2019, we are seeing significant weakness in our cellular end market which is resulting in the under-utilization of our advanced technology factories. Consequently, we are exercising discipline in managing our costs and focusing on continued cash flow generation. Longer term, we are confident in our diversification and differentiation strategy as well as secular growth drivers such as 5G wireless technology, increasing automotive electronic content, and ongoing demand strength in aerospace and defense electronics,” concluded Mr. Edman.

To Access the Live Webcast/Conference Call

TTM will host a conference call and webcast to discuss fourth quarter 2018 results and first quarter 2019 outlook on Wednesday, February 6, 2019, at 4:30 p.m. Eastern Time (1:30 p.m. Pacific Time). The conference call will include forward-looking statements.

Telephone access is available by dialing domestic 866-548-4713 or international 323-794-2093 (ID 3216797). The conference call also will be webcast on TTM’s website at www.ttm.com.

To Access a Replay of the Webcast

The replay of the webcast will remain accessible for one week following the live event on TTM’s website at www.ttm.com.

About TTM

TTM Technologies, Inc. is a leading global printed circuit board manufacturer, focusing on quick-turn and volume production of technologically advanced PCBs, backplane assemblies and electro-mechanical solutions as well as a global designer and manufacturer of RF and microwave components and assemblies. TTM stands for time-to-market, representing how TTM’s time-critical, one-stop manufacturing services enable customers to shorten the time required to develop new products and bring them to market. Additional information can be found at www.ttm.com.

Forward-Looking Statements

This release contains forward-looking statements that relate to future events or performance. TTM cautions you that such statements are simply predictions and actual events or results may differ materially. These statements reflect TTM’s current expectations, and TTM does not undertake to update or revise these forward looking statements, even if experience or future changes make it clear that any projected results expressed or implied in this or other TTM statements will not be realized. Further, these statements involve risks and uncertainties, many of which are beyond TTM’s control, which could cause actual results to differ materially from the forward-looking statements. These risks and uncertainties include, but are not limited to, general market and economic conditions, including interest rates, currency exchange rates and consumer spending, demand for TTM’s products, market pressures on prices of TTM’s products, warranty claims, changes in product mix, contemplated significant capital expenditures and related financing requirements, TTM’s dependence upon a small number of customers and other factors set forth in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of the Company’s public reports filed with the SEC.

About Our Non-GAAP Financial Measures

This release includes information about TTM’s adjusted EBITDA, non-GAAP net income and non-GAAP earnings per share, all of which are non-GAAP financial measures. TTM presents non-GAAP financial information to enable investors to see TTM through the eyes of management and to provide better insight into TTM’s ongoing financial performance.

A material limitation associated with the use of the above non-GAAP financial measures is that they have no standardized measurement prescribed by GAAP and may not be comparable to similar non-GAAP financial measures used by other companies. TTM compensates for these limitations by providing full disclosure of each non-GAAP financial measure and reconciliation to the most directly comparable GAAP financial measure. However, the non-GAAP financial measures should not be considered in isolation from, or as a substitute for, financial information prepared in accordance with GAAP.

With respect to the Company’s outlook for non-GAAP net income per diluted share, we are unable to predict with reasonable certainty or without unreasonable effort certain items that may affect such measure calculated and presented in accordance with GAAP. Our expected non-GAAP net income per diluted share excludes primarily the future impact of restructuring actions, impairment charges, unusual gains and losses, and tax adjustments. These reconciling items are highly variable and difficult to predict due to various factors outside of management’s control and could have a material impact on our future period net income per diluted share calculated and presented in accordance with GAAP. Accordingly, a reconciliation of non-GAAP net income per diluted share to such measure calculated and presented in accordance with GAAP is not available without unreasonable effort and has not been provided.

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TTM TECHNOLOGIES, INC.

Selected Unaudited Financial Information

(In thousands, except per share data)