REX VIRTUAL DRILLING Rex Virtual Drilling ("RVD"), the Group’s proprietary liquid hydrocarbon indicator, is developed by Rex Technology Investments Pte. Ltd., an indirect wholly-owned subsidiary of the Group, and is used by the Group to derisk exploration and development assets. RVD uses conventional seismic data to extract information about the presence of reservoir rock and liquid hydrocarbons. Although seismic data has been used by the exploration industry for almost a century, identifying reservoir rock and liquid types remains very difficult, with global average oil exploration success rate at only about 10 to 15 per cent. RVD can increase exploration success rates as it processes and extracts information from seismic data using unique algorithms that create 3D maps that show correlation with the presence of oil in the ground. The data is then used together with conventional sub-surface analysis to assess how it fits in a geological setting, providing guidance for better decision-making. The technology has also proven to be highly accurate in predicting dry wells. By incorporating RVD into existing de risking processes, oil exploration companies can increase the chances of finding oil whilst saving millions of dollars in futile capital expenditure drilling dry wells. The efficiency of RVD has been extensively tested in blind tests, live tests and actual drilling campaigns since 2009. Since its inception, the technology has undergone several revisions and improvements to refine its predictive capabilities. Image: RVD results demonstrating increased values of dispersion higher up in structure, towards pinch-out. High chance of oil at the structural high and water further downdip. Possible approximate oil-water contact identified. Weak dispersion downdip - likely water-wet reservoir Strong dispersion towards updip pinchout - good correlation with oil DEGREE OF DISPERSION RESERVOIR CONTENT HIGH OIL OR WATER-WET RESERVOIR LOW WATER-WET OR NO RESERVOIR XER TECH HOLDING AB Xer Tech Holding AB (“Xer”) is listed on the Sweden Spotlight Stock Exchange. Xer’s Swiss subsidiary and headquarters, Xer Technologies AG, develops its own durable, long-range multirotor drones that can fly for several hours with heavy payload, and sells them to clients globally with sales made already in the US, Europe, Australia and Asia. The drones have been designed and tested for tough weather conditions, making them suitable for operations globally. Typically, Xer’s unmanned aerial system (UAS) is applied in areas such as infrastructure inspection (for example, power line inspection, offshore windmill inspection and gas emission inspection), as well as search and rescue operations and public safety applications. The Xer X8 UAV (unmanned aerial vehicle) boasts swift deployment within two minutes, leveraging its distinctive hybrid-electric technologies to carry advanced payloads such as high-end optical cameras, LiDAR (Light Detection and Ranging), IR-, corona-, or multispectral cameras, magnetometer, ISR (intelligence, surveillance and reconnaissance). The UAS can navigate adverse weather conditions and sustain flights for 2.5 hours with a 3 kg payload, or a total payload of up to 7 kg. The use of the X8 UAV can dramatically reduce energy use, costs, CO2 emissions and risk to life, as compared to manned, heavier aircraft. These characteristics make the X8 UAS particularly suitable for beyond-visual-line-of-sight (BVLOS) operations for infrastructure inspection, including power lines, offshore windfarms, oil & gas assets, railroad, and other remote industrial structures. For more information on Xer, please visit website: https://www.xer-tech.com/ 42 Annual Report 2025
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