Halliburton 2021 Annual & Sustainability Report Environmental 48 Participating Companies Since we launched Halliburton Labs in 2020, we have attracted and onboarded many qualified and outstanding companies that are on the cusp to become game changers in their industries and our collective clean energy future. NANOTECH, INC. HELIX POWER SURGEPOWER MATERIALS Houston, TX Somerville, MA New Braunfels, TX Thermal insulation and Flywheel energy storage High-quality graphene fireproofing nano-coatings technology from renewable feedstock ENEXOR BIOENERGY SOLVCOR IONADA Franklin, TN Princeton, NJ Toronto, Ontario, Canada On-site bioenergy conversion Liquid additive that reduces Carbon capture for small- to systems for waste energy consumption and mid-sized industrial emitters CO emissions MOMENTUM TECHNOLOGIES 2 ICARUS RT Dallas, TX ALUMINA ENERGY San Diego, CA Lithium battery recycling Los Angeles, CA Power boosting and energy technology and rare earth recovery Thermal energy storage storage for solar PV systems OCOCHEM PARASANTI STRAYOS Richland, WA Austin, TX Buffalo, NY Carbon dioxide-to-formate Edge computing hardware Uses AI to sustainably conversion technology and software solutions extract raw minerals 2021 Participating Company Achievements Momentum Technologies raised $20 million in a round led by Freestone. Enexor raised $10 million in a round led by BorgWarner. Enexor gained acceptance to the Google Climate Change Program and the 100+ Accelerator program. Alumina Energy joined the Shell/National Renewable Energy Laboratory (NREL) Game Changer program. NanoTech won the 2021 Energy Transition Award presented by InnovationMap. Rice University named Halliburton Labs Advisory Board Member Reginald DesRoches as its next president. The advisory board of Halliburton Labs has added two new* members: • Reginald DesRoches, Rice University’s Provost and • Jennifer Holmgren, CEO of LanzaTech* Professor of Civil and Environmental Engineering, • Maynard Holt, CEO of Veriten* and Mechanical Engineering • Jeffrey A. Miller, Chairman of the Board, President • John Grotzinger, the Fletcher Jones Professor of and Chief Executive Officer of Halliburton Geology at the California Institute of Technology, and Chair of the university’s Division of Geological • Dale Winger, Managing Director of Halliburton Labs and Planetary Sciences • Walter Isaacson, the Leonard Lauder Professor of American History and Values at Tulane University in New Orleans, Louisiana