Financial Results for Fiscal Q3 Ended March 31, 2020

• Revenue was $106.9 million, a decrease of 9.3% from the prior quarter and a decrease of 2.0% from the same quarter last year.
• GAAP gross margin was 21.0%, up from 20.7% in the prior quarter and down from 23.5% year-over-year.
• Non-GAAP gross margin was 27.5%, down from 28.3% in the prior quarter and up from 27.0% from the same quarter last year.
• GAAP operating expenses were $31.1 million, up from $27.8 million in the prior quarter and up from $29.4 from the same quarter last year.
• Non-GAAP operating expenses were $25.8 million, an increase of $0.1 million from last quarter and an increase of $2.7 million from the same quarter last year.
• GAAP operating loss was $8.6 million, up from $3.4 million loss in the prior quarter and $3.7 million loss from the same quarter last year.
• Non-GAAP operating income was $3.5 million as compared to $7.6 million for the prior quarter and $6.3 million for the same quarter last year.
• GAAP net loss per share attributable to AOS was $0.26, compared to $0.04 for the prior quarter and $0.06 for the same quarter a year ago.
• Non-GAAP earnings per share attributable to AOS was $0.11 compared to $0.23 for the prior quarter and $0.22 for the same quarter a year ago.
• Consolidated cash flow provided by operating activities was $14.3 million, compared to $8.9 million in prior quarter. Operating cash flow provided by AOS alone (excluding the JV Company) was $29.5 million, compared to $12.5 million in the prior quarter.
• The Company closed the quarter with $110.2 million of cash and cash equivalents, including $10.7 million cash balance at the JV Company.

“Despite unprecedented challenges resulting from the COVID-19 pandemic, we finished the March quarter in line with expectations, with revenue in our guidance range. As we navigate through this difficult time, our top priority is the health and well-being of our employees and their families. We are thankful that all 4,000 of our employees are safe and well, our global operations are running, and our manufacturing facilities are operating at expected levels. I am both humbled by and proud of our amazing group of employees, who delivered extraordinary performance with a strong sense of ownership and commitment, while sustaining a safe and healthy work environment,” stated Dr. Mike Chang, Chairman and CEO of AOS.

Dr. Chang continued, “Even with the overall downturn in the economy, near-term end demand for Computing and Gaming is strong. Our JV Company is starting to fulfill its purpose, as highlighted in our strategic plan for sustainable growth. It has played a critical role in enabling us to capture the surge in Computing demand. In difficult times like these, supporting our customers through uninterrupted supply of products is more important than ever. The power semiconductor market is large and growing, and we are determined and committed to accomplish our mission to expand rapidly and become a top-tier supplier to this market.”

Business Outlook for Fiscal Q4 Ending June 30, 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.

Our expectations for the fourth quarter of fiscal year 2020 are as follows:

• Revenue is expected to be between $117 million and $121 million.
• GAAP gross margin is expected to be approximately 22.0% plus or minus 1%. Non-GAAP gross margin is expected to be approximately 26.5% plus or minus 1%. Note that non-GAAP gross margin excludes $0.4 million of estimated share-based compensation and $5.0 million of estimated production ramp-up costs relating to the JV Company.
• GAAP operating expenses are 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 $25.7 million plus or minus $1 million. Both GAAP and non-GAAP operating expenses include $3.2 million to $3.5 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 fees related to the government investigation and $2.3 million of estimated share-based compensation charge.
• Income tax expense is expected to be approximately $0.3 million to $0.5 million.
• Loss attributable to noncontrolling interest is expected to be around $2.7 million. On a non-GAAP basis, excluding estimated production ramp-up costs relating to the JV Company, this item is expected to be approximately $0.1 million.

Conference Call and Webcast

AOS plans to hold an investor teleconference and live webcast to discuss the financial results for the fiscal third quarter of 2020 ended March 31, 2020 today, May 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 2759996. 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, expected increase of demand in PC and gaming markets, our responses to the COVID-19 pandemic, 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, our ability to provide power solutions and reliable supply chains, and other information under the section entitled “Business Outlook for Fiscal Q4 Ending June 30, 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, the impact of COVID-19 pandemic on our business, 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; changes in regulatory environment and government investigation; 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.