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Making our world <br /> more productive <br /> To Whom It May Concern, December 8, 2023 <br /> Please find attached a test summary report from the California Air Resource Board (GARB) on <br /> Linde's Hydrogen Mobile Fueler. The testing was performed at Linde Services Inc. facility in <br /> Rancho Cucamonga, CA between August 23rd and 24th,2023. <br /> CARB's testing equipment and methodology is specifically focused on testing commercial <br /> Hydrogen dispensing stations for the Light Duty Vehicles. These vehicles only have hydrogen <br /> tank sizes at or below 248.6 L(<10 kg). Furthermore, the current revision of the fueling standard <br /> (J2601) only allows fueling if the hydrogen has been cooled prior to injection (-17.5 to -40 °C). <br /> The Linde system was designed for Heavy Duty Vehicles. These vehicles typically have total tank <br /> volumes greater than 700 L (>20kg) and primarily only fill to a nominal pressure of 350 bar. <br /> Currently, there is no standard filling protocol published by SAE that dictates gas temperature <br /> ranges, filling rates, or target temperatures. As a result, Linde is using the Clean Energy <br /> Partnership (CEP) protocols for these larger tanks that has been published and widely used in <br /> Europe. To allow testing with CARB's smaller tanks, Linde implemented a preliminary draft of <br /> the J2601 published in 2010 that allows ambient temperature injection. <br /> Pages 7 and 8 show a summary of the tests performed during the CARB testing. A few of the tests <br /> are marked as "failed." These are principally due to violation of the very tight allowable <br /> temperature difference between ambient temperature and injected gas temperature that is specified <br /> with the preliminary J2601 protocol ( 5°C). Linde is currently working on engineering controls <br /> to mitigate the impact of solar radiation/heating on the interconnecting piping to allow operation <br /> at this tighter window if the system is ever used for smaller tanks. This will not be an issue with <br /> the CEP protocol as the allowable temperature difference is significantly higher ( 40°C) and <br /> notably larger than what was observed during testing. All testing anomalies are addressed in the <br /> report on pages 4,5, and 6. <br /> Linde and GARB, as a result of the testing, confirmed that the safety protocols are in place and <br /> properly functioning. <br /> Please direct any questions to: <br /> David Lehnert- David.Lenhert@linde.com <br /> Kevin Mochen—Kevin.Mochen@Linde.com <br /> Page 35 of 38 <br />