Investor Presentaiton

Dairy RNG Projects GreenGas Colorado: Actively Producing Accretive partnership: sold 50% of Green Gas Colorado for >100% of total equity value Manure to pipeline quality RNG with offtake in competitive jurisdiction Long-term feedstock supply from two national dairy producers with on-site gas offtake and connection Negative Cl scores (-189 for GreenGas) allows GIP the ability to capture higher values on LCFS and RIN credits than non-dairy based RNG facilities Operational optimization activities underway to ramp up to full production of 360,000 MMBtu/year Iowa RNG: Three Dairies on Long-term Supply Agreements Projected run-rate EBITDA1 of ~$18 million Estimated CI Score of -230 Capital cost approximately $100 million Gearing up for construction; finalizing EPC agreements and capital cost estimates GIP to retain a 50% interest in the project with 50% held by Amber Infrastructure [email protected] TSX: GIP.V Cost¹ Expected Financial Profile Offtake Credit Rating Feedstock Run Rate EBITDA² ~$105 million Confirmed A-/Baa1 Secured ~$22 million (1) Inclusive of financing costs; CAPEX costs are expected to remain consistent with previously disclosed estimates of C$72 million (2) GIP retains 50% interest Project Highlights Location Size Anticipated Construction Start NW Iowa 11,000+ dairy cattle 2024 1. The Q3 2023 MD&A provides additional disclosure on the expected EBITDA of Colorado and lowa. Please see non-GAAP measures on page 3 Note: All figures on this page are in Canadian dollars (C$) based on fully ramped up production of 360,000 mmbtu/year, trailing three-year historical average pricing and exchange rate of $US to $C of $1.37 Green Impact Partners 12

View entire presentation