Slide 1: Natural Gas – A New Energy Supply for Mongolia
TMK ENERGY LIMITED (ASX:TMK) For personal use only NATURAL GAS – A NEW ENERGY SUPPLY FOR MONGOLIA 2026 SEAPEX Presentation - Manilla Dougal Ferguson Chief Executive Officer WWW.TMKENERGY.COM.AU
Slide 2: Disclaimer
DISCLAIMER This document is for information purposes only. It is not a prospectus, disclosure document or offering document under Australian law or under any other law and does not constitute an offer or invitation to apply for securities. This document is not an offer of securities for subscription
Slide 3: Gurvantes XXXV Natural Gas Project
GURVANTES XXXV NATURAL GAS PROJECT PROJECT OVERVIEW Location map of TMK’s Gurvantes XXXV CSG Project Location South Gobi Basin, Mongolia Production Sharing Contract (PSC) / Description For personal use only Exploration License Size ~8,400km2 TMK Interest 100% Status Exploration and Appraisal • High
Slide 4: Corporate Snapshot
CORPORATE SNAPSHOT TMK Energy Limited (as of 9 April 2026) Share Price $0.165 Goal: To build a gas industry in Mongolia on the back of the largest discovered contingent gas resource Market Capitalisation ~$44.3M Shares on Issue ~268 million For personal use only 0.30 3,000,000 Listed Options (ASX:TM
Slide 5: Board & Management
OUR COMPANY BOARD & MANAGEMENT Proven leaders with extensive industry expertise For personal use only and a history of delivering John Warburton Brett Lawrence Non-Executive Chair Non-Executive Director results Glenn Corrie Dougal Ferguson Non-Executive Director Chief Executive Officer Gema Gerelsai
Slide 6: Mongolia's Energy Landscape
MONGOLIA’S ENERGY LANDSCAPE ENERGY SHORT AND LOOKING FOR SOLUTIONS ➢ Mongolia’s energy infrastructure relies almost entirely on coal fired power generation Electricity Demand Forecast of Mongolia For personal use only 2011 to 2030 ➢ LPG’s and fuel imported primarily from Russia 3500 3,080 ➢ Large po
Slide 7: Domestic Supply Opportunity
DOMESTIC SUPPLY SOUTH GOBI PROVINCE OPPORTUNITY ENERGY INFRASTRUCTURE SOUTH GOBI ▪ The capital of Mongolia, Ulaanbaatar, is heavily MONGOLIA polluted and has recently initiated policy directives For personal use only aimed at reducing pollution in Ger Districts through use of natural gas ▪ Significa
Slide 8: Large Scale Discovered Resource: 1.2 TCF (2C) Contingent Resources
LARGE SCALE DISCOVERED RESOURCE…. 1.2 TCF (2C) OF CONTINGENT RESOURCES Nariin Sukhait Area ➢ Independently assessed by Unrisked Gross (100%) Contingent Gas Resources (BCF)* For personal use only Depth Range Netherland Sewell and Associates (metres) ` 1C (Low 2C (Best 3C (High Inc (NSAI) in 2022 Esti
Slide 9: Significant Upside Potential: Prospective Resources
…..WITH SIGNIFICANT UPSIDE POTENTIAL CONVERTING PROSPECTIVE RESOURCES TO CONTINGENT Total Gurvantes XXXV Block For personal use only Risked Gross (100%) Prospective Gas Resources (BCF) Region ` 1U (Low 2U(Best 3U (High Estimate) Estimate) Estimate) Total (Arithmetic) 2,621 5,303 9,895 Prospective Re
Slide 10: Pilot Production Well Summary
PILOT PRODUCTION WELL SUMMARY SEVEN WELLS SUCCESSFULLY DRILLED AND PRODUCING PRODUCTION WELL LF-01 LF-02 LF-03 LF-04 LF-05 LF-06 LF-07 TOTAL DEPTH 375m 407m 515m 503m 480m 475m 420m NET COAL THICKNESS ~61m ~62m ~68m ~60m ~60m ~60m ~56m For personal use only DATE DRILLED April 2023 May 2023 May 2023
Slide 11: LF-07 Flare
LF-07 FLARE For personal use only WWW.TMKENERGY.COM.AU © TMK ENERGY LIMITED 2026 (ASX:TMK) PAGE 11
Slide 12: 2026 Work Program: Three Well Drilling Program
2026 WORK PROGRAM THREE WELL DRILLING PROGRAM Secure relevant approvals for drilling PRODUCTION WELL LF-8 LF-9 LF-10 PLANNED SPUD DATE July 2026 July 2026 August 2206 Pilot well program design and planning For personal use only PLANNED COMMISSION DATE August 2026 August 2026 August 2026 Tender drill
Slide 13: From Exploration to Commercial Gas Flow
FROM EXPLORATION TO COMMERCIAL GAS FLOW PATHWAY TO PRODUCTION AND REVENUE Feasibility Full Field Desorption Completed and Development Pressure FINAL Reservoir INVESTMENT Management achieved, Commercial gas rates DECISION Initial Plan updated and with material increased, For personal use only Explora
Slide 14: Partnering Opportunity: Farm-Out Process Commenced
PARTNERING OPPORTUNITY FARM-OUT PROCESS COMMENCED ➢Data Room – available on request under NDA ➢Upstream, midstream or downstream – partnerships could take the form of For personal use only drilling partners, offtake partners or Project Equity partners ➢Staged Investment – multiple gates for investme
Slide 15: Conceptual Phased Development Plan
CONCEPTUAL PHASED DEVELOPMENT PLAN ADVANCING THE PATHWAY TO DEVELOPMENT ➢Prove commercial gas – new reservoir modelling demonstrates clear pathway and high confidence to reach commercial gas For personal use only ➢Advance offtake opportunities – MoU executed with Ministry of Energy regarding power g
Slide 16: Lucky Fox Pilot Well Field Production
LUCKY FOX PILOT WELL FIELD PRODUCTION MATERIAL IMPROVEMENT OVER LAST 6 MONTHS Lucky Fox Pilot Well Field Production Accelerating gas 1,400 1,400 production at LF-07 pre Water Rate curtailment to ensure safe and efficient production personal use only Gas Rate 1,200 1,200 Phase 1 pilot wells Phase 2 p
Slide 17: Calculated Desorption Pressure
CALCULATED DESORPTION PRESSURE WHY IS THIS SO IMPORTANT? SL-02 Adsorption Isotherm ➢ Gas only begins to flow in material 18 For personal use only quantities when the desorption pressure Maximum Gas is reached 16 Holding Capacity ➢ Adsorption isotherm (Langmuir Curve) 14 Current Reservoir Pressure is
Slide 18: Reservoir Pressure Reduction
RESERVOIR PRESSURE REDUCTION CONTINUED PROGRESS TOWARDS THE GOAL ➢ Pilot area water production Reservoir Pressure Reduction Simulated BHP(kPa) Measured BHP (kPa) is consistently lowering reservoir For personal use only 2500 pressure toward the predicted desorption pressure 2300 ➢ Reservoir simulatio
Slide 19: What the Resource Base Delivers
WHAT THE RESOURCE BASE DELIVERS 35 YEARS OF PRODUCTION AT HIGH RATES Contingent Resource Categories 200MMSCFD REPRESENTS 80% OF FULL WAITSIA CAPACITY For personal use only 722BCF (2C) to 750m 250 2C to 750m* Waitsia Gas Field (Perth Basin) Maximum Production Capacity (250 MMSCFD) (Nariin Sukhait) 1.
Slide 20: Reservoir Modelling Project
RESERVOIR MODELLING PROJECT USING REAL DATA TO PREDICT OUTCOMES Fully developed PDU contains 25 wells within 1.4km2 ➢ 3 years of valuable historical production and 1 km pressure data available used to model Top of Upper Coal Seam For personal use only production forecast ➢ Grid based PDU concept usi
Slide 21: Production Development Unit
PRODUCTION DEVELOPMENT UNIT PHASE ONE – DEVELOPMENT OF LOWEST COST 2C RESOURCES 1 PDU contains 25 wells Cum. Gas for 1 Ave. Gas Rate 1 PDU Water Production 1 PDU No. of Wells 25 Cum Gas for 1 PDU (BCF) PDU (BCF) Poly. (Average Gas Rate 1PDU (MSCFPD)) (MSCFPD) (BWPD) Poly. (Water Production 1 PDU (BW
Slide 22: Rinse and Repeat Development PDUs
RINSE AND REPEAT DEVELOPMENT 30 PDU’S TO DEVELOP 722BCF (2C TO 750 METRES* IN DEPTH) 30 PDUs Developing 720 BCF For personal use only No. of PDUs 30 Gas Rate All PDUs (MSCFPD) Water Production All PDUs (BWPD) No. of Wells 750 140,000 800.0 Area 10,200 ac or 42km2 Daily Gas Production (MSCFPD)/ Water
Slide 23: Pilot Well Project: What Have We Learned?
PILOT WELL PROJECT WHAT HAVE WE LEARNED? Conclusion: The Pilot Well production data closely mirrors the reservoir modelling, For personal use only demonstrating a clear correlation and high confidence that reservoir performance can be predicted and the field can be successfully developed Key learnin
Slide 24: Focus on the Technicals
FOCUS ON THE TECHNICALS STRONG EXECUTION AND PROJECT DELIVERY 1 2 3 4 5 For personal use only Material Increased focus Revised Production Reservoir model Chances of a Improvement in on subsurface Management built and reservoir commercial Production and with improved System has pressure steadily outc
Slide 25: Contact Us
TMK ENERGY LIMITED (ASX:TMK) For personal use only CONTACT US +61 8 6319 1900 (Australia) +976 7777 3373(Mongolia) www.tmkenergy.com.au info@tmkenergy.com.au WWW.TMKENERGY.COM.AU © TMK ENERGY LIMITED 2026 (ASX:TMK) PAGE 25