Financial Results for Fiscal Q2 Ended December 31, 2019

• Revenue was $117.9 million, flat quarter-over-quarter and an increase of 2.6% from the same quarter last year.
• GAAP gross margin was 20.7%. Non-GAAP gross margin was 28.3%, flat quarter-over-quarter and a decrease of 90 basis points year-over-year.
• GAAP operating expenses were $27.8 million. Non-GAAP operating expenses were $25.7 million, flat from last quarter and an increase of $0.6 million from the same quarter last year.
• GAAP operating loss was $3.4 million. Non-GAAP operating income was $7.6 million as compared to $7.7 million for the prior quarter and $8.5 million for the same quarter last year.
• GAAP net loss per share attributable to AOS was $0.04. Non-GAAP earnings per share attributable to AOS was $0.23 compared to $0.26 for the prior quarter and $0.30 for the same quarter a year ago.
• Consolidated cash flow provided by operating activities was $8.9 million, compared to cash flow used in operating activities of $1.2 million last quarter. Operating cash flow provided by AOS alone was $12.5 million, compared to $4.2 million cash flow used in the prior quarter.
• The Company closed the quarter with $107.2 million of cash and cash equivalents, including $21.1 million cash balance at the JV Company.

“Despite the challenging conditions, we remained focused and continued to execute well during the December quarter. Overall, our results came in within the expectations, and AOS's core business generated strong operating cash flow,” stated Dr. Mike Chang, Chairman and CEO of AOS.

The Company notes that Department of Justice recently commenced an investigation into the Company’s compliance with export control regulations relating to certain business transactions with Huawei and its affiliates (“Huawei”), which were added to the “Entity List” by the Department of Commerce (“DOC”). The Company is cooperating fully with federal authorities in the investigation. The Company has maintained an export control compliance program and has been committed to comply fully with all applicable laws and regulations. In connection with this investigation, DOC has requested the Company to suspend shipments of its products to Huawei, and the Company is currently working with DOC to resolve this issue. Accordingly, we expect the financial performance in the March quarter will be negatively impacted by the Huawei shipment interruption and by additional professional fees incurred in connection with the investigation. We note that the DOC order applies to only our shipment to Huawei and sales to other non-Huawei customers are expected to continue, unaffected by the order. Since this is a pending and confidential matter, the Company does not intend to comment further on the status of this investigation except as required by law.

Dr Chang continues “While we expect weaker than normal seasonality in our business during the March quarter due to the estimated production loss in China caused by the coronavirus outbreak and the suspension of shipments to Huawei, our momentum in design wins and market share gains at multiple customers continues to build across our key market segments. With added capacity at our Chongqing Joint Venture this year, we look forward to better supporting our multiple global OEM and ODM customers across mobile, PC and home appliance applications to bring up their production volumes toward peak season. We remain encouraged by the opportunities ahead of us and are fully committed to moving forward with our growth plans and navigating the headwinds and volatility we are facing in the near-term.”

Business Outlook for Fiscal Q3 Ending March 31, 2020

The following statements are based on management's current expectations. These statements are forward-looking, and actual results may differ materially. AOS undertakes no obligation to update these statements.

Based on this development and the estimated production loss in China due to the coronavirus outbreak and extended Chinese New Year holiday, our expectations for the third quarter of fiscal year 2020 are as follows:

• Revenue is expected to be between $106 million and $110 million. We estimate that the loss of production due to the coronavirus outbreak and extended Chinese New Year holiday will reduce revenue by $6 million to $7 million for the March quarter, based on the information we have as of today. The interruption of shipments to Huawei is expected to reduce revenue for the March quarter by approximately $4 million to $5 million.
• GAAP gross margin is expected to be approximately 17.3% plus or minus 1%. Non-GAAP gross margin is expected to be approximately 26.0% plus or minus 1%. Note that non-GAAP gross margin excludes $0.4 million of estimated share-based compensation and $8.5 million of estimated production ramp-up costs relating to the JV Company.
• GAAP operating expenses is expected to be in the range of $29.0 million plus or minus $1 million. Non-GAAP operating expenses are expected to be in the range of $25.5 million plus or minus $1 million. Both GAAP and non-GAAP operating expenses include $3.0 million to $3.3 million of estimated expenses relating to the development of our digital power controller business. Non-GAAP operating expenses exclude $1.0 million to $2.0 million of estimated professional fee related to the government investigation and $2.0 million of estimated share-based compensation charge.
• Tax expense is expected to be approximately $0.4 million to $0.6 million.
• Loss attributable to noncontrolling interest is expected to be around $4.7 million. On a non-GAAP basis, excluding estimated production ramp-up costs relating to the JV Company, this item is expected to be approximately $0.3 million.

Conference Call and Webcast

AOS plans to hold an investor teleconference and live webcast to discuss the financial results for the fiscal second quarter of 2020 ended December 31, 2019 today, February 5, 2020 at 2:00 p.m. PT / 5:00 p.m. ET. To participate in the live call, analysts and investors should dial 866-393-4306 (or 734-385-2616 if dialing from outside the United States and Canada). The conference ID number is 1193408. In addition, a copy of the script of management's prepared remarks and a live webcast of the call will also be available in the "Events & Presentations" section of the company's investor relations website, http://investor.aosmd.com/.

Forward-Looking Statements

This press release contains forward-looking statements that are based on current expectations, estimates, forecasts and projections of future performance based on management's judgment, beliefs, current trends, and anticipated product performance. These forward-looking statements include, without limitation, statements relating to expected growth rate, our product portfolios, projected amount of revenue, gross margin, operating income (loss), income tax expenses, net income (loss), noncontrolling interest, and share-based compensation expenses, non-GAAP gross margin, non-GAAP operating expenses, tax expenses, and non-GAAP loss attributable to noncontrolling interest, anticipated annual revenue target, our ability and strategy to develop new products including digital power controller products, the ability to expand our sales and market share, increase our capacity and achieve sustained growth and profitability, our ability to support global OEM and ODM customers, the expected ramp-up schedule of the 12 inch fab at the JV Company and target run rate, the development of digital power business, partnership with global brands, the relationship with key customers, business pipeline from design wins, the growth in mobile business, our ability to provide power solutions and reliable supply chains, government investigation and shipments to Huawei, impact of coronavirus outbreak on our business, and other information under the section entitled “Business Outlook for Fiscal Q3 Ending March 31, 2020”. Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those contained in the forward-looking statements. These factors include, but are not limited to, our ability to successfully operate our joint venture in China; our ability to develop and succeed in the digital power business; difficulties and challenges in executing our diversification strategy into different market segments; new tariffs on goods from China; ordering pattern from distributors and seasonality; our ability to introduce or develop new and enhanced products that achieve market acceptance; decline of PC markets; the actual product performance in volume production; the quality and reliability of our product, our ability to achieve design wins; the general business and economic conditions; the state of semiconductor industry and seasonality of our markets; our ability to maintain factory utilization at a desirable level; and other risks as described in our SEC filings, including our Annual Report on Form 10-K for the fiscal year ended June 30, 2019 filed on August 23, 2019. Other unknown or unpredictable factors or underlying assumptions subsequently proving to be incorrect could cause actual results to differ materially from those in the forward-looking statements. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, level of activity, performance, or achievements. You should not place undue reliance on these forward-looking statements. All information provided in this press release is as of today's date, unless otherwise stated, and AOS undertakes no duty to update such information, except as required under applicable law.