Companies collaborate to integrate 5G into industrial robot capable of performing highly dexterous tasks in hazardous conditions

SALT LAKE CITY and BELLEVUE, Wash. — August 5, 2021 — Sarcos Robotics ("Sarcos"), a leader in the development of robots that augment humans to enhance productivity and safety, and T-Mobile (NASDAQ: TMUS), America's 5G leader, today announced a collaboration to integrate T-Mobile 5G into the Sarcos Guardian XT™ highly dexterous mobile industrial robot. The Guardian XT robot is a remote-controlled robotic system designed to help humans safely work in hazardous conditions, performing tasks such as lifting heavy materials or using power tools at significant heights. With T-Mobile 5G integration, the companies aim to improve performance and response time for remote operations, so the robots can perform tasks more quickly and more in tune with their operator's movements.

The Guardian XT robotic system is an upper-body variant of the award-winning Sarcos Guardian® XO® full-body, battery-powered industrial exoskeleton. It is platform-agnostic and can be mounted to a variety of mobile bases to access hard-to-reach or elevated areas and applies to many industries, including aerospace, automotive, aviation, construction, defense, industrial manufacturing, maritime, and oil and gas. Both the Guardian XO and the Guardian XT robots are expected to be commercially available by the end of 2022.

T-Mobile 5G to Power Remote Viewing and Teleoperation
The T-Mobile and Sarcos collaboration begins with the integration of 5G to develop a remote viewing system powered by T-Mobile's high bandwidth, low latency 5G network. This enables workers, supervisors, outside experts, and others, whether they are based locally or remote, to watch tasks being performed by the robot as it is controlled by an operator in the field. The second phase of development is expected to include full T-Mobile 5G wireless network integration, allowing teleoperation of the Guardian XT robot over 5G, giving operators greater flexibility and increasing their safety by enabling them to perform tasks from a distance.

"We are proud to collaborate with T-Mobile and we've made great progress leveraging their 5G network to enable the remote viewing management system," said Scott Hopper, Executive Vice President of Corporate and Business Development, Sarcos Robotics. "This is a significant first step and we're eager to continue the development toward full 5G wireless connectivity that will unlock a variety of new capabilities, including remote teleoperation, as we prepare for commercial availability."

"The Sarcos Guardian XT robot requires a highly reliable, low latency 5G network that its human operators can count on," said John Saw, EVP of Advanced & Emerging Technologies at T-Mobile. "5G was designed from the ground up for industrial applications such as this and we cannot wait to further collaborate with Sarcos as they develop the next big thing in industrial robotics."

On April 6, 2021, Sarcos announced that it will become publicly listed through a merger transaction with Rotor Acquisition Corp. (NYSE: ROT.U, ROT, and ROT WS) ("Rotor"), a publicly-traded special purpose acquisition company. The transaction is expected to close in the third quarter of 2021, at which point the combined company's common stock is expected to trade on Nasdaq under the ticker symbol STRC.

For more information on Sarcos, the Guardian XT robot, and the company's advanced teleoperation control system, please visit www.sarcos.com. For more information about T-Mobile follow T-Mobile's Official Twitter Newsroom @TMobileNews to stay up to date with the latest company news.

About Sarcos Robotics
Sarcos Robotics is a leader in industrial robotic systems that augment human performance by combining human intelligence, instinct, and judgment with the strength, endurance, and precision of machines to enhance employee safety and productivity. Leveraging more than 30 years of research and development, Sarcos' mobile robotic systems, including the Guardian® S, Guardian® GT, Guardian® XO®, and Guardian® XT™, are designed to revolutionize the future of work wherever physically demanding work is done. Sarcos is based in Salt Lake City, Utah, and backed by Caterpillar Venture Capital Inc., Delta Air Lines, GE Ventures, Microsoft, and Schlumberger. For more information, please visit www.sarcos.com

About T-Mobile
T-Mobile U.S. Inc. (NASDAQ: TMUS) is America's supercharged Un-carrier, delivering an advanced 4G LTE and transformative nationwide 5G network that will offer reliable connectivity for all. T-Mobile's customers benefit from its unmatched combination of value and quality, unwavering obsession with offering them the best possible service experience and undisputable drive for disruption that creates competition and innovation in wireless and beyond. Based in Bellevue, Wash., T-Mobile provides services through its subsidiaries and operates its flagship brands, T-Mobile, Metro by T-Mobile and Sprint. For more information please visit: https://www.t-mobile.com.

About Rotor Acquisition Corp.
With approximately 100 years of combined experience in investing and managing capital across markets and industries, structuring transactions, and building businesses and led by Chief Executive Officer Brian Finn, Chairman of the Board Stefan M. Selig, and Director John D. Howard, Rotor Acquisition Corp. ("Rotor") is a blank check company formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with potential target companies with certain industry and business characteristics within the areas of disruptive consumer and industrial technologies. For more information, please visit www.rotoracquisition.com.

Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, but not limited to, Rotor's and Sarcos' expectations or predictions of future business performance or conditions, Sarcos' product roadmap, including the expected timing of commercialization or new product releases, the expected capabilities of Sarcos products currently in development and Sarcos' use of capital following the transaction, including Sarcos' ability to accomplish the initiatives outlined above. Forward-looking statements are inherently subject to risks, uncertainties, and assumptions. Generally, statements that are not historical facts, including statements concerning possible or assumed future actions, business strategies, events, or results of operations, are forward-looking statements. These statements may be preceded by, followed by, or include the words "believes," "estimates," "expects," "projects," "forecasts," "may," "will," "should," "seeks," "plans," "scheduled," "anticipates," "intends" or "continue" or similar expressions. Such forward-looking statements involve risks and uncertainties that may cause actual events, results or performance to differ materially from those indicated by such statements. These forward-looking statements are based on Sarcos' management's current expectations and beliefs, as well as a number of assumptions concerning future events. However, there can be no assurance that the events, results, or trends identified in these forward-looking statements will occur or be achieved. Forward-looking statements speak only as of the date they are made, and Sarcos is not under any obligation and expressly disclaim any obligation, to update, alter or otherwise revise any forward-looking statement, whether as a result of new information, future events, or otherwise, except as required by law. Readers should carefully review the statements set forth in the reports, which Rotor has filed or will file from time to time with the SEC. In addition to factors previously disclosed in Rotor's reports filed with the SEC and those identified in this press release, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance: risks and uncertainties related to the inability of the parties to successfully or timely consummate the potential business combination, including the risk that any required regulatory approvals or stockholder approvals of Rotor are not obtained, are delayed or are subject to unanticipated conditions that could adversely affect the combined company or the expected benefits of the proposed business combination; failure to realize the anticipated benefits of the potential business combination; Sarcos' ability to execute on its business strategy, including expected timing of commercial launch of the Guardian XO and Guardian XT, develop new products and services and enhance existing products and services; ability to respond rapidly to emerging technology trends; ability to compete effectively and manage growth and costs; and other risks and uncertainties set forth in the section entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements" in Rotor's preliminary proxy statement filed with the SEC on August 2, 2021 and other documents of Rotor filed, or to be filed, with SEC.

This communication is not intended to be all-inclusive or to contain all the information that a person may desire in considering an investment in Rotor and is not intended to form the basis of an investment decision in Rotor. All subsequent written and oral forward-looking statements concerning Rotor and Sarcos, the Proposed Business Combination, or other matters and attributable to Rotor and Sarcos or any person acting on their behalf are expressly qualified in their entirety by the cautionary statements above.

No Offer or Solicitation
This press release does not constitute a solicitation of a proxy, consent, or authorization with respect to any securities or in respect of the proposed transaction. This press release also does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor will there be any sale of any securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such other jurisdiction. No offering of securities will be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, or an exemption therefrom.

Rotor, Sarcos and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of Rotor, in favor of the approval of the merger. Information regarding Rotor's directors and executive officers is contained in the section of Rotor's Form S-1 titled "Management," which was filed with the SEC on December 18, 2020. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the proxy statement and other relevant documents filed with the SEC when they become available. The documents filed by Rotor with the SEC may be obtained free of charge at the SEC's website at www.sec.gov. Alternatively, these documents, when available, can be obtained free of charge from Rotor upon written request to Rotor Acquisition Corp., The Chrysler Building, 405 Lexington Avenue, New York, New York 10174.