Halliburton 2021 Annual & Sustainability Report Social 70 Social Services (continued) Educational and Community Engagement Halliburton Charitable Foundation Golf Connecting High School Students to Tournament STEM Careers At Zanesville High School in Zanesville, Ohio, Halliburton launched the Challenge Program to improve students’ academic performance and to generate excitement about their potential in a future STEM career. In this program, students must meet certain academic marks. Halliburton selects winners in five categories: attendance, STEM, community service, academic improvement, and academic excellence. The winners receive a $500 scholarship to use at the school of their choice. Since the program’s introduction in 2016, Halliburton has contributed more than $20,000. After its cancellation in 2020 resulting from the COVID-19 pandemic, the Halliburton Charity Golf Tournament returned for its 26th anniversary event in 2021. The tournament has raised more than $25 million for various charities across the U.S. since its inception in 1993. It is one of the largest non-PGA golf tournament fundraisers in the nation. This year, the tournament raised $2.6 million for more than 75 nonprofit organizations. We enjoyed 130 event sponsors and the participation of many of our suppliers, employees, and Halliburton volunteers. Helping Protect Surrounding Communities Total 2021 giving for from an Active Volcano in the Caribbean Halliburton Foundation Halliburton supports the University of the West Indies (UWI) Seismic Research Centre, which is the agency $2.3M responsible for monitoring earthquakes and volcanoes in the English-speaking islands of the Eastern Caribbean, including Trinidad and Tobago. For more than 60 years, the Centre has operated the largest earthquake- and volcano-monitoring initiative in the Caribbean, and promotes geologic hazard awareness, contingency Given to 75 nonprofit organizations planning for natural disasters, and development of early- supporting U.S. communities from the warning systems. Halliburton Charity Golf Tournament Prompted by the La Soufrière volcano’s sudden return to activity on the island of St. Vincent, Halliburton $2.6M donated three borehole tiltmeters to the Centre to bolster ongoing monitoring of the volcano. Installed along the flanks of the volcano, the tiltmeters capture and deliver data in near real time to the Centre’s observatory. The tiltmeters will improve sensitivity to magma movement, and the information yielded will facilitate faster response times to deformation changes and also advance early- warning capabilities.