Good morning, and welcome to the ACM Research 2021 Annual Meeting of Stockholders. I would now like to introduce the first presenter, David Wang. David, are you ready to speak? You can start now. Good morning to those joining us in the United States, and good morning to those in China. I'm David Wang, the Chairman of the Board, President, and CEO of ACM Research. I'll also be serving as the chair of this meeting on behalf of the board. It is my privilege to welcome you to ACM's 2021 Annual Meeting of Shareholders, which we are again hosting by live for webcast. I would like to introduce Mark McKechnie, the Chief Financial Officer, Executive Vice President, Treasurer, and Secretary of ACM Research. Mark will lead the discussion of today's stockholders proposal. Thank you, David. Welcome all to this year's annual meeting. I will conduct the formal business of the meeting first. After the meeting concludes, David will make a few remarks about our key achievements in 2020 and our progress thus far in 2021. David and I will be happy to address any business-related questions. You may submit your business-related questions at any time by typing into the box at the bottom of your screen. The meeting and question and answer session will be conducted in accordance with the rule of conduct and procedures for the meeting, which you can access under the heading Meeting Materials on the virtual meeting website. I would like to begin by introducing some of the individuals who have been critical to ACM this past year. First, I'm pleased to introduce the individuals who, with David, comprise ACM's board of directors. Dr. Haiping Dun, Dr. Chenming C. Hu, Tracy Liu, and Yinan Xiang. Zhengfan Yang, who served as one of our directors since 2018, is not standing for re-election at this year's annual meeting. We would like to thank Zhengfan for his years of service, and we wish him well in his future endeavors. I would like to introduce Lisa Feng, Chief Financial Officer of ACM Research (Shanghai), Inc. or ACM Shanghai, a subsidiary of ACM Research. Also joining us today are Mark Johnson, Bella Zaslavsky, and Madeline Moore of K&L Gates, our legal counsel. Mark is serving as reporter for this meeting. We'd next like to introduce Daniel Ho of BDO China Shu Lun Pan Certified Public Accountants LLP as our independent accountant. I would like to introduce Kathryn Weeden, who is serving as Inspector of Elections of this meeting. We now will review the background and formalities relating to the matters to be voted upon at this meeting. On April 23, 2021, we filed a proxy statement and related materials with the United States Securities and Exchange Commission relating to today's annual meeting. On April 23, 2021, we also began mailing notices regarding the availability of these proxy materials to our stockholders of record as of 5:00 P.M. Eastern Time on April 8, 2021, were the stockholders entitled to vote at this meeting. I have received an affidavit from Broadridge Financial Solutions, Inc., certifying that beginning on April 23, 2021, the records related to the annual meeting were processed, distributed, mailed, and deposited with the United States Post Office and sent to all stockholders of record as of 5:00 P.M. Eastern Time on April 8. This affidavit, along with the complete alphabetical listing of stockholders entitled to vote at this meeting, is available for inspection by any stockholder and will be filed with the records of this meeting. The proxy materials identify four proposals to be considered at this meeting. The election of five director nominees. Two, amendments to our certificate of incorporation, principally to increase numbers of authorized shares of common stock. Three, the ratification of BDO China Shu Lun Pan Certified Public Accountants as our independent auditor for the 2021 fiscal year. Four, an advisory say on pay vote on our 2020 executive compensation. If you have already delivered a proxy to ACM, your stock will be voted as you have specified in your proxy. If you're a stockholder and have not already delivered a proxy or would like to change any of the votes reflected on your proxy, you may vote by clicking on the voting buttons on your screen. The polls are now open for each of the matters on which the stockholders will vote at this meeting. The polls will remain open until each of the matters to be voted upon has been presented, and I have announced the polls have been closed. The Inspector of Elections has tallied the proxies received. That count shows that a majority of the votes attributable to outstanding shares of Class A and Class B common stock voting as a single class is present in person or by proxy. This constitutes a quorum for the transaction of business at the annual meeting. Later in the meeting, I'll provide information reported by the Inspector of Elections about the voting power present at this meeting in person or by proxy. Since a quorum is present, we may proceed to present and vote on the matters described in the proxy statement. Proposal number 1 is the election of directors. At ACM, the entire board of directors is elected annually. Each director must be elected by a plurality of votes present in person or represented by proxy at this meeting and entitled to vote on the matter. The five nominees for election at this meeting are David Wang, Haiping Dun, Chenming C. Hu, Tracy Liu, and Yinan Xiang. Proposal 2 is amendments to certificate of incorporation. The amendments are principally to increase the numbers of authorized share of common stock. For approval, this vote requires the affirmative vote of stockholders representing a majority of the voting power of the outstanding capital stock, voting together as a single class on an as-converted basis. Proposal number 3 is the ratification of the Audit Committee's appointment of BDO China Shu Lun Pan Certified Public Accountants as ACM's independent auditor for 2021. This ratification requires approval by affirmative votes constituting a majority of votes present in person or by proxy. Proposal number 4, the final matter, is the approval of our 2020 executive compensation. This advisory vote requires approval by affirmative votes constituting a majority of the votes present in person or by proxy. This concludes the business items on the agenda for this annual meeting. The polls are now closed. The Inspector of Elections has advised us in her report of the following voting results. There are present at this meeting, in person or by proxy, the holder of shares of Class A and Class B common stock, entitled to cast 42,807,616 votes. I'm sorry, 42,807,616 votes, representing 81.3% of the voting power of the stock entitled to vote at this meeting. First, a plurality of votes in the election of directors have been cast for the election of each nominee. Second, a majority of the voting power of the outstanding capital stock has voted for the amendments to our certificate of incorporation, principally to increase the numbers of authorized shares of common stock. Third, a majority of the votes cast on the matter have been cast for the ratification of the appointment of BDO China Shu Lun Pan Certified Public Accountants as our independent auditor for 2021. Fourth, a majority of the votes cast on the matter have been cast for the approval of the compensation paid to our executives in 2020. Based on the report of the Inspector of Elections, I declare that all of the proposals have been approved. As Secretary, I'll incorporate the formal report of the Inspector of Elections, including the results of the votes, in the record of this meeting. I will now hand the meeting back to the Chair, David Wang. Thank you for taking time to attend our 2021 annual meetings. There being no further business to come before the meeting, I hereby adjourn the meeting. Now, I would like to take a few minutes to review some of our key achievements in 2020 and to date in 2021. 2020 was a very productive year for ACM. We faced several challenges, such as COVID-19 pandemic and trade tensions. We overcame these challenges through hard work and a good execution, and a positive tailwind in the China semiconductor industry. We focused on what we could control. We managed our supply chain, we executed on customer deliveries, we expanded capacity, we introduced new products, and we made great progress with new customers. We also moved forward with our long-term facility plan in Lingang with purchasing 50-year land rights, initial planning for the R&D and production site, and the deposit for our employee housing development. For the full year 2020, we had a record revenue of $156.6 million, up 46% year-over-year, and record shipment of $182 million, up 58% from 2019 level. Building on the strong business momentum from last year, we are off to a great start of 2021 with solid results for the Q1. Q1 revenue was $43.7 million, up 80% year-over-year. Shipment was $74 million, up from $67 million in Q4 2020, and up from $12 million in the Q1 of 2020. We deliver a good balance of growth and profitability with a 41.4% gross margin and 11% operating margin. We ended the quarter with $79 million of cash with additional $27 million U.S. equivalent from our investment in SMIC's share, listed under Shanghai Stock Exchange STAR Market. Q1 results demonstrate ACM technology leadership, our broader technology portfolio, and our increased production scale. I will now discuss some of our key strategic initiatives. First, ACM success starts with our customers. We have five major front-end customer in foundry, 3D NAND, and DRAM. We also have several back-end wafer packaging and assembly customers. Our newer customers manufacture power and analog devices. In 2020, we had penetrated two of the five key trailing-edge node of analog power IC and CIS manufacturers in China. In the Q1 of 2021, we received orders from additional one of the five key trailing-edge node customers. We are actively engaged with the remaining two players, with the goal of receiving orders from one or both of them later this year. On top of that, during Q1, we also penetrated two additional advanced packaging houses and one compound semiconductor IC manufacturer. Second, we are expanding our production capacity. During Q1, we expanded production capacity by leasing a second building at our factory in Changsha. This will provide us with enough floor space to gradually increase our production capacity to more than $500 million, up from current level of $350 million. Our long-term plan is to build a production and R&D center in the Lingang region of Shanghai. The 1 million square feet of floor spacing will enable us to increase our annual production capacity to $1.5 billion. We are busy with additional architectural and design work this quarter, with initial production targeted by the end of 2022. Third, we have established a strong team to helping expand the ACM customer base to additional major customers. Since hiring Jim Straub to head our U.S. European sales effort last year, we have added several other senior employees in the business development and service team, including a 21-year industry veteran to lead our U.S. service and delivery team. We now have a seasoned team of world-class industry veterans to drive our effort to expand our business to additional major customers beyond our base in Asia. Our team remains deeply engaged in technology discussion and evaluation with the U.S. and Taiwan-based semiconductor manufacturers. We are making good progress and are confident that we can secure wins with one or more first-tier customers during 2021. Fourth, we are expanding our production offering with new product line. Our current products enter a market of more than $5 billion. ACM committed to become a multi-product company. We are positive on growing opportunity from our core cleaning tools, including SAPS, TEBO, Tahoe, and our semi-critical cleaning tools. We are also beginning to see a meaningful contribution from our newer product offerings, starting with ECP, where we expect to ramp in 2021 and beyond, followed by our furnace product, which we expect to begin contributing in 2022 and beyond. Additionally, we have started significant R&D investment in two major new product categories to achieve our long-term goal to double the total addressable market of our product from $5 billion today to more than $10 billion. Fifth, we are making slow but steady progress on the stock market IPO of our China Shanghai subsidiary. As discussed on our Q1 earnings conference call, our team submitted a second verification report to the Shanghai Stock Exchange, or SSE, in late March. This report explained the class action lawsuit that was filed in the U.S. last year related to their short seller report published in early October. We are responding to their other important but manageable inquiry. We remain confident that we will receive approval from SSE, then move on to the China Securities Regulatory Commission registration process to complete IPO. Consistent with its practice, SSE has not provided us with a timetable that would enable us to predict the process timing. Before I turn to Q&A session, I would like to thank our employees for their hard work and their dedication. I also want to thank our customer, partners, and shareholders for their continual support and confidence in ACM Research. Our strong growth is supporting acceleration in R&D spending on new products. We are building our global sales and marketing resource to penetrate new customer in new region. We are scaling production capacity to support our long-term growth plan. Our mission to become a major equipment supplier to the global semiconductor industry remains on track. With that, Mark and I will now take any business-related question that you may have. Okay. At this time, I don't see any questions in the queue. Thank you again for the participation and support. The webcast is now completed. Thank you.