Entrée/Oyu Tolgoi Joint Venture Project Mongolia NI 43-101 Technical Report Prepared for: Effective Date: Entrée Resources Ltd. 17 May, 2021 Prepared by: Mr Kirk Hanson, P.E. Project Number: Mr Christopher Wright, P.Geo. 247026 Mr. Piers Wendlandt, P.E.. Mr. Dean David, FAusIMM Dr. Haiming (Peter) Yuan, P.E. CERTIFICATE OF QUALIFIED PERSON Kirk Hanson, P.E. Wood USA Mining Consulting SLC Engineering 10876 S River Front Pkwy #250 South Jordan, UT 84095 United States Tel: (775) 997-6559 I, Kirk Hanson, P.E., am employed as a Technical Director, Open Pit Mining with Wood USA Mining Consulting SLC Engineering. This certificate applies to the technical report entitled “Entrée/Oyu Tolgoi Joint Venture Project, Mongolia, NI 43-101 Technical Report” that has an effective date of 17 May, 2021 (the “technical report”). I am registered as a Professional Engineer in the State of Idaho (#11063). I graduated with a B.Sc. degree from Montana Tech of the University of Montana, Butte, Montana in 1989 and from Boise State University, Boise, Idaho with an MBA degree in 2004. I have practiced my profession for 32 years. I was Engineering Superintendent at Barrick’s Goldstrike operation, where I was responsible for all aspects of open-pit mining, mine designs, mine expansions and strategic planning. After earning an MBA in 2004, I was assistant manager of operations and maintenance for the largest road department in Idaho. In 2007, I joined AMEC (now Wood) as a principal mining consultant. Over the past 14 years, I have been the mining lead for multiple scoping, pre-feasibility, and feasibility studies. I have also done financial modelling for multiple mines as part of completing the scoping, pre-feasibility and feasibility studies. As a result of my experience and qualifications, I am a Qualified Person as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (NI 43–101). I have not visited the Oyu Tolgoi Project. I am responsible for sections 1.1 to 1.2, 1.21, 1.22, 1.23.16, 1.23.17, 1.26; Sections 2.1 to 2.3, 2.5, 2.6; Section 3; Section 22; Section 24.1.9; Sections 25.1, 25.15, 25.16, 25.19; and Section 27 of the Technical Report. I am independent of Entrée Resources Inc. as independence is described by Section 1.5 of NI 43–101. I have previously co-authored the following technical report on the project: • Hanson, K., Kulla G., Oshust P., Loomis, I., and Wong, H., 2018: Entrée/Oyu Tolgoi Joint Venture Project, Mongolia, NI 43-101 Technical Report: report prepared by Amec Foster Wheeler for Entrée Gold Inc., effective date 15 January, 2018. I have read NI 43–101 and the sections of the technical report for which I am responsible have been prepared in compliance with that Instrument. Wood USA Mining Consulting SLC Engineering 10876 S River Front Pkwy #250 South Jordan, UT 84095 United States www.woodplc.com Page 1 of 2 As of the effective date of the technical report, to the best of my knowledge, information and belief, the sections of the technical report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the technical report not misleading. Dated: 20 July, 2021 “Signed and sealed” Kirk Hanson, P.E. Wood USA Mining Consulting SLC Engineering 10876 S River Front Pkwy #250 South Jordan, UT 84095 United States www.woodplc.com Page 2 of 2 CERTIFICATE OF QUALIFIED PERSON Christopher Wright, P.Geo. Wood Canada Limited 111 Dunsmuir St, Unit #400 Vancouver, BC V6B 5W3 Canada I, Christopher Wright, P.Geo., am employed as a Technical Director with Wood Canada Limited. This certificate applies to the technical report entitled “Entrée/Oyu Tolgoi Joint Venture Project, Mongolia, NI 43-101 Technical Report” that has an effective date of 17 May, 2021 (the “technical report”). I am registered as a Professional Geologist in British Columbia (#52476). Professional Geoscientist of The Association of Professional Geoscientists of British Columbia; 52476. I graduated from McGill University with a Bachelor of Science degree in 1997. I have practiced my profession for 24 years. I have been directly involved in Mineral Resource estimation for base and precious metal deposits for over 20 years. As a result of my experience and qualifications, I am a Qualified Person as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (NI 43–101). I most recently visited the Oyu Tolgoi Project from 11–21 June 2018. I am responsible for Sections 1.1 to 1.8, 1.10, 1.11, 1.25, 1.27; Section 2, Sections 3.1, 3.2; Section 4; Section 5; Section 6; Section 7; Section 8; Section 9; Section 10; Section 11; Section 12; Section 14; Sections 25.1 to 25.4, 25.6, 25.18; Section 26 and Section 27 of the Technical Report. I am independent of Entrée Resources Inc. as independence is described by Section 1.5 of NI 43–101. I have previous involvement with the Project during an 11-month period from August 2017 to June 2018 when I completed extensive work with the South Oyut and Hugo North Mineral Resource and metallurgical databases and block models in the construction of geometallurgical models for these areas. I have read NI 43–101 and the sections of the technical report for which I am responsible have been prepared in compliance with that Instrument. As of the effective date of the technical report, to the best of my knowledge, information and belief, the sections of the technical report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the technical report not misleading. Dated: 20 July, 2021 “Signed and sealed” Christopher Wright, P.Geo. Wood Canada Limited 111 Dunsmuir St, Unit #400 Vancouver, BC V6B 5W3 Canada www.woodplc.com Page 1 of 1 CERTIFICATE OF QUALIFIED PERSON Piers Wendlandt P.E. Wood USA Mining Consulting 2000 S Colorado Blvd # 2-1000 Denver, CO, 80222 United States I, Piers Wendlandt P.E., am employed as a Principal Mining Engineer with Wood USA Mining Consulting (Wood). This certificate applies to the technical report entitled “Entrée/Oyu Tolgoi Joint Venture Project, NI 43-101 Technical Report” that has an effective date of 17 May, 2021 (the “technical report”). I am registered as a Professional Engineer in the State of Colorado (PE. 0047235). I graduated with a BSc. in Mining Engineering from the Colorado School of Mines in 2005, with a Master’s of Public Affairs from the University of Texas at Austin in 2009, and with a Master’s in Business Administration from the University of Colorado at Denver in 2019. I have practiced my profession for 15 years. I have been employed in both site-based operations and consulting roles during my career and have extensive experience with all aspects of the mine planning process. I have been directly involved in numerous scoping, pre-feasibility, and feasibility studies in a leading capacity. As a consultant, I have supervised the inputs and coordination of specialist disciplines into the mine planning and reserves estimation process for underground metals projects around the world. I have completed underground mine plans and schedules, estimated equipment and personnel requirements, and estimated capital and operating costs. After earning an MBA, I have undertaken financial modeling in support of technical studies. As a result of my experience and qualifications, I am a Qualified Person as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (NI 43–101). I have not visited the Oyu Tolgoi Project. I am responsible for sections 1.1 to 1.2, 1.12 to 1.14, 1.16, 1.19, 1.20, 1.23.1 to 1.23.3, 1.23.5, 1.23.14, 1.23.15, 1.24.1, 1.24.2; Sections 2.1 to 2.3, 2.5 2.6; Section 3; Section 15; Section 16; Section 18.1 to 18.4, 18.6, 18.7; Sections 21.1, 21.2.1 to 21.2.4, 21.2.6 to 21.2.12, 21.3.1, 21.3.2, 21.3.4, 21.3.5, 21.3.7; Section 23; Sections 24.1.1 to 24.1.3, 24.1.5, 24.1.8; Sections 25.1, 25.7, 25.8, 25.10, 25.13, 25.14, 25.16, 25.17.1, 25.17.2; and Section 27 of the Technical Report. I am independent of Entrée Resources Inc. as independence is described by Section 1.5 of NI 43–101. I have had involvement with the Oyu Tolgoi Project since 2008, performing mine planning activities such as mine design, scheduling, and trade-off studies in support of underground mine designs. Wood USA Mining Consulting 2000 S Colorado Blvd # 2-1000 Denver, CO, 80222 United States www.woodplc.com Page 1 of 2 I have read NI 43–101 and the sections of the technical report for which I am responsible have been prepared in compliance with that Instrument. As of the effective date of the technical report, to the best of my knowledge, information and belief, the sections of the technical report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the technical report not misleading. Dated: 20 July, 2021 “Signed” Piers Wendlandt P.E. Wood USA Mining Consulting 2000 S Colorado Blvd # 2-1000 Denver, CO, 80222 United States www.woodplc.com Page 2 of 2 CERTIFICATE OF QUALIFIED PERSON Dean David, FAusIMM Amec Foster Wheeler Australia Pty Ltd (trading as Wood) Level 1, 240 St Georges Terrace Perth, WA, 6000 Australia I, Dean David, FAusIMM (CP Met), am employed as Senior Consultant (Process) with Amec Foster Wheeler Australia Pty Ltd (trading as Wood).