Nikola Results Presentation Deck

1 1 PAGE NIKOLA OGE COLLABORATION (1) 1) 2) ● ● N ¤ OGE BUILDING A H₂ STATION NETWORK IN EUROPE 2 OGE is one of Europe's leading pipeline operators and a leading member of the "European Hydrogen Backbone" initiative Owner and operator 12,000 km of pipeline Collaboration to establish heavy-duty hydrogen fueling stations in Germany Maximizes opportunities for OGE existing and future hydrogen pipeline network Partnership is a key milestone toward building out a H₂ fueling network in Europe for Nikola's future FCEV customers TRUCK UPDATES ULM FACILITY UPDATE COOLIDGE FACILITY UPDATE RIG360 OGE OGE H₂ PIPELINE NETWORK - GERMANY Subject to entry into definitive agreement Adopted in 2019, the EU established increased CO2 emission standards for semi-truck fleets setting reduction targets of 15% and 30% for 2025 and 2030, respectively Frankfurt ΤΑ Munich Berlin Existing H₂ infrastructure and increased CO₂ regulations are expected to further drive the adoption of FCEVs across the EU (2) Select OGE H₂ Pipelines Q1 2021 RESULTS Q2 & FY 2021 OUTLOOK APPENDIX

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