<img src="https://ml.globenewswire.com/Resource/Download/25fe098b-8e92-4c74-bb61-20b928ec09ee?size=2" nborder="0" align="left" hspace="5" vspace="5" title="TMC - black.jpg" alt="The Metals Company"/><ul type="disc"><li style="margin-bottom:8pt;">In the first contentious decisions issued by the Seabed Disputes Chamber under Part XI of the United Nations Convention on the Law of the Sea (“UNCLOS”), judges ruled unanimously to prescribe provisional measures to protect the rights of TMC’s subsidiaries, NORI and TOML, in their proceedings against the International Seabed Authority (“ISA”)</li><li style="margin-bottom:8pt;">Judges concluded that NORI and TOML have rights to due process and fair treatment and that there is a real and imminent risk of irreparable prejudice to those rights pending a final decision</li><li style="margin-bottom:8pt;">The Chamber also ordered the ISA to respect the applicable legal framework and due-process requirements in considering NORI’s application to extend its exploration contract</li><li style="margin-bottom:8pt;">The Orders represent an important development for the rule of law within the international seabed minerals regime as ISA Member States and their sponsored entities have invested significant capital into offshore environmental research and technology trials with the expectation that the regulatory framework will be transparent, predictable, and fairly applied</li></ul> NEW YORK, July 20, 2026 <a href="https://www.globenewswire.com" target="_blank">(GLOBE NEWSWIRE)</a> -- TMC the metals company Inc. (Nasdaq: TMC) (“TMC” or the “Company”), a leading developer of the world’s largest resource of critical metals essential to energy, defense, manufacturing and infrastructure, today welcomed the unanimous Orders of the Seabed Disputes Chamber of the International Tribunal for the Law of the Sea (“ITLOS”) prescribing provisional measures to protect the rights of its subsidiaries, Nauru Ocean Resources Inc. (“NORI”) and Tonga Offshore Mining Limited (“TOML”), in their proceedings against the ISA. The Chamber unanimously found that <a href="https://www.globenewswire.com/Tracker?data=8ilJay6u30YwBRfthq34kpYDpfIMQe9D9tn7m5rd8QxOybFNKPxN6ko5_ACdP7gTPMcYlFCjQTiDzfKAFSPBVZ4hyW4pqiZq2gjQuKIHwqYdJ6g7IwgyJ9CSlmgDWqmVWXz02hJ_R0MhgnwzDPQjUWJLZqi3oRyzLR--m-_9rik=" rel="nofollow" target="_blank" title="NORI">NORI</a> and <a href="https://www.globenewswire.com/Tracker?data=SLMywWV81QSpp6Rz7vYbvCcNDVLLIa7-MijaSnaH_2TcV99PDsuFYsX-YYCj2y_QPlqVhpjd7RsrVYDZwnZZzxSWD8Zl6euxay0z_NyfT8sIRhgyshl29XvMeMtpAaXk-PxNVjCITdojsSNoDWy9fnPsmjbnZzWYUR-53THyvg8=" rel="nofollow" target="_blank" title="TOML">TOML</a> have plausible rights to due process and fair treatment, that there is a real and imminent risk of irreparable prejudice to those rights pending a final decision, and that provisional measures were required. It ordered the ISA to act in accordance with the applicable legal framework, including the rules of due process, and to provide both contractors with sufficient clarity and information regarding the procedures and questions underlying the inquiry so that each can respond meaningfully and within a reasonable period. The Chamber also ordered the ISA to respect the applicable legal framework and due-process requirements in considering NORI’s application to extend its exploration contract. In both cases, the Chamber directed the parties to cooperate and refrain from any action that might aggravate the disputes. “Contractors like NORI and TOML who have together spent hundreds of millions of dollars on the promise of a fair regulatory framework should be informed of the factual and legal basis of any non-compliance inquiries, understand the procedure being applied, and receive a meaningful opportunity to respond,” said Gerard Barron, Chairman and CEO of The Metals Company. “The Chamber has now unanimously confirmed that those protections are not merely aspirational principles but legal rights deserving of protection.” Mr. Barron continued: “These Orders confirm that the Chamber is a vital part of the institutional machinery established by UNCLOS and that the ISA’s conduct is subject to meaningful judicial oversight. Strong institutions, accountability, and the rule of law are critical to the ongoing development of the seabed minerals industry.” As the first contentious decisions issued by the Seabed Disputes Chamber under Part XI of UNCLOS, the Orders represent an important development in the evolution of the international legal framework governing seabed minerals, establishing key principles concerning due process and reinforcing judicial oversight and guidance on the procedural protections applicable to ISA contractors. NORI and TOML were represented before the Seabed Disputes Chamber by Watson Farley &amp; Williams LLP, led by Nathan Eastwood as Agent, Counsel and Advocate, together with Samuel Wordsworth KC, Amy Sander KC, and Sean Aughey of Essex Court Chambers. About The Metals Company The Metals Company is a developer of lower-impact critical metals from seafloor polymetallic nodules, on a dual mission: (1) supply metals for energy, defense, manufacturing and infrastructure with net positive impacts compared to conventional production routes and (2) trace, recover and recycle the metals we supply to help create a metal commons that can be used in perpetuity. The Company has conducted more than a decade of research into the environmental and social impacts of offshore nodule collection and onshore processing. More information is available at <a href="https://www.globenewswire.com/Tracker?data=QSSOaqQYStaKCul5HqPNmD7ZxpSgSN4-J3TF-ES15AB6QKP7-wpuwUfGHUCdnNZJAsJNPU1OPQ07htuH_TrZfrKFPVV11uqhMIGykFgFnczcm00-hXZz-ScwFd8E0-DU1NKbPMHJwbngYOzI46ZIEmKnzrxg83anGtScld2KVVe1yeJwmBppJG5dsVGn4KwrEe3kELrK7CRXfjX_607g8MdR_MjIoCres13mTBfN_oqUGowzxYMldNCdlApsRGQW0ay1VaFsW86BL7DnsyAaDFcNgA2bE8_XihGR5_bmHA-4EudhWR_-1ONMYZUnD52mv0Jk0pIGQPVNubUxWIYPX6fvAwZ4-dY-xbtnfeVIQVf5-xR5t5ou0VDV3pkCVVQD98NyZQ5RcNhJmKSyIkJ1XjP3se6Hlv2Md0VGDSMlfyPD0Dzmm8tYX6tIHfTnchOwMIi0pjl7WTGtE6vZl9IK7xPtaqwmg3kpj_yE838WfOserWwzayyO0a_4zFSvQQz9gYbaPX5F5TIIGn-9KR13NKrVQRbXg0jUBd2uHYhpCvBGy9fdxQBphfQUw-ifSk_ZMOUE5co7k2W3g-MIbxuc-yVsmjiEjAJr9HjkiXUP8wjSUhw2JmTb8_NHnyxd1Vg2VFocP1NO2XLOBKxlEciyTNF58i8fySF5KQiKMwoQIf85XKN8KcdQwcSssWN_s3J9oVwcscGm_s85_is3ekpoxBeeMPwOGY0qPTZ6VEZpKl5yWA-Ndrn9bQipPC2od4h94GobQLR0B_Bz4mj0Uaqw10GQVKnyln7iky7zcy3FR7zuHx6oe21WItfUlbIt-KRpr38ryP3TS__-RG-fJefO7HC3fYb3OzL0MpS3EkVzEKPnra0py-CzayhDsI6kbos6qDGWIVsCq50s_IO3jUmocaHRBj_pxFWy3vXMSDH7RQ832XD3ViIIFueD0o2lvmOThRZL2TwjXlmDLqNNofFB5_m3cYMXODIxtGkAFLOmZ9PXOL61mCEu-4v1bR576aDiP-xrq2cy4Hm6nlP7TzKmZigaiIGKpyaUhApPJv1IKV_6bH3P4sIVK-GHLMznzEvO" rel="nofollow" target="_blank" title="www.metals.co">www.metals.co</a>.  Contacts Media | <a href="https://www.globenewswire.com/Tracker?data=b9u80KI4Qz8VIm4Mn5hXz7iQYXZKQ4efQqGKIGs7tSTJ9mV_NOd3zuwVPoARRiIqpKu7PX4bdPZldKtWOj-uwFXPLJFaf9UMKzSHP6vdLpRw0HPdTIRitKp54rnEGepn-PFpkz7aHpiBGIEQImSrA-9Ahk3g8aIcWjQB7FJ-3Lt_ogVlmr5ADgCLNHzrdzrhIbSNwgFiuj-SEl0M6Uz-8jkMW7tirzBJj6IxXWFOVQ7vgGRz79ex6tVzp1o94h1GW8OLw1gPQvx8XD3_SvNp0RqjzOO6K4oe8Nk3-dtmwQdw0aWVeXoqI1qyCnm6PUGX5qcbwTrq4jzTU1NM0544He0PpUaHFyDbMsCh-dd5O_ux7cJJCynJrtC5Yv5eTxdd0VuOmN2BKQnMPH7WofDpAywnI4oDFV_FtVxVlp393Yss9g1U0wE1MRnMer0N1DvxZiS62nukfIdv2dSyh3ESi8l8sAezddOBIeWjITVf3690Fs7sZIpGb9zJvOtbUlndNdz4zDrguSb5Y53aqLCVi-ax4AwQPBgj382epY9VlGLEMcyEggurMbsbA2T1sv6PA24NQFj1WPDdZ4tWqF3jgunlAmywXbYWeyz0KtNikIpENkUfoQlrS_5o5BpmtKQIcWBdGmvQrqovlvGIrZOGIYShBQHmDE6vkbMCtDWtEuiL1g84M1KTdbZdcIxGhiNSk17YP9KGHGDt9_Rbya4Yn8QhQ2kl3lV8Afx-jdjyAPkFHrOlXTgpPAW93jYE0CKHmIY0v1JKXvrES81u2buw_Q==" rel="nofollow" target="_blank" title="media@metals.co">media@metals.co</a> Investors | <a href="https://www.globenewswire.com/Tracker?data=IJ4G1hGgBkns9L7ZmPzgQmxIFleyPkbKiHoYAtIAoGRwWBjeelxOMLQnFYycaE5RhdNbRg6U4tpA2MN9e4qBVONxpjFLojqSpt-V6sNM8PmMhz7Roc19SMUNlHJGOiM0nT3aQ3ciMtP_S95qLQ8-Gq4IpB_Zso2huacjz_rsf16c_1fkCjz8Cf0gj628X5Mf9lLEbLlH7vd7v9tqBozujzHKfp5EUodjXN95mGrKyzBwAOIyKOfT_LZZNMKrGunFOiowgOYjxvjlIykz4ZIiaAgkRn-unBZMm1JMDPgmlwWyRSAwfPCgrfOuC0NG_Dn3oAD5A3X6gPhL7ZetkWFG2ddkl8OXO1IOEBnyV1Nt52lJhpo6j6ZTSoQ1-3mbSmzwcFThGITNsfsEiNHiWODSUiEx_koUAv_T3LRsxcEBaMdpbGEOaplwFwkDl9VvL5FqnRX4JEc-fK33j-LFX8p73qVvJ0TdmM-TMZ9OMCkSJsYnVAQpPh9-PyPloMX7AuZ4nA4TM0WkY3wHGSZqU89-XS-QS5QWK6zE9J0tRUKGjWiMqZAzRfYZ3Oub08FKJ7aYX2rYcKH7WpyfvBT9bXLe0IEWPUKLfbjmn4LHXiUbeZ3wjj-k3ST-EEuU9bwKt2hwdU7M6rEmfzV6Rtj38_NPRPiZkO9nu1jYjLcHBJTORTRDG4-SVXI23rVhbo79zN_GQwbH4GoaJDTv40OVu4UVVeMJtzSl0tXRFIp9MzCLtBrOJ0Gq2R6LoZkYnt93rdNt81MiebfGlEtBEQ3pNu3W4sCrBxTHm_WL_JBJuzi08HE=" rel="nofollow" target="_blank" title="investors@metals.co">investors@metals.co</a>  Forward-Looking Statements This press release contains forward-looking statements and information within the meaning of the Private Securities Litigation Reform Act of 1995. These statements may be identified by words such as believes, could, expects, may, plans, possible, potential, will and variations of these words or similar expressions, although not all forward-looking statements contain these words. Forward-looking statements in this press release include, but are not limited to, statements with respect to: the expectation that the ISA will comply with the Orders and act in accordance with the applicable legal framework and due-process requirements, including cooperating with NORI and TOML and refraining from actions that might aggravate the disputes; the expectation that NORI's application to extend its exploration contract will be considered by the ISA in accordance with those requirements; and the Company's expectation that the Orders will contribute to the development of a transparent, predictable, and fairly applied international regulatory framework for the seabed minerals industry. The Company may not actually achieve the plans, intentions or expectations disclosed in these forward-looking statements, and you should not place undue reliance on these forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in these forward-looking statements as a result of various factors, including, among other things: the outcome of the final proceedings before the Seabed Disputes Chamber in the cases brought by NORI and TOML against the ISA; the ISA's response to and compliance with the Orders; the outcome and timing of NORI's exploration contract extension application; the evolution of the international legal and regulatory framework governing seabed minerals under UNCLOS and the ISA; the outcome of any pending or future litigation; and other risks and uncertainties described in greater detail in the section entitled Risk Factors in the Company's Annual Report on Form 10-K for the year ended December 31, 2025, filed with the U.S. Securities and Exchange Commission on March 31, 2026, and in the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, filed on May 14, 2026, and in subsequent Current Reports on Form 8-K filed with the SEC. Any forward-looking statements contained in this press release speak only as of the date hereof, and the Company expressly disclaims any obligation to update any forward-looking statements contained herein, whether because of any new information, future events, changed circumstances or otherwise, except as otherwise required by law. <img alt="" src='https://ml.globenewswire.com/media/NWMzNWM5MWUtYWY1OC00OTU0LTg0NTctZDA4NTYwMjdlNWViLTEyMjA4MDAtMjAyNi0wNy0yMC1lbg==/tiny/TMC-the-metals-company-Inc-.png' referrerpolicy='no-referrer-when-downgrade' />

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TMC Welcomes Unanimous Decisions by International Tribunal for the Law of the Sea Ordering the ISA to Respect NORI and TOML’s Due Process Rights

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