Supporting Technical Assessments

Martha Open Pit Site Ohinemuri River Waihi Storage 2 TSF Storage 2 TSF 1A Proposed Northern Rock Stack Site DRAWING INDEX WAI-983-080-DWG-CI-0700 WAI-983-080-DWG-CI-0716 Oceana Gold (New Zealand) Limited Waihi Sections - Northern Rock Stack - Tails / Waste Rock 080 Locality Plan and Index - Northern Rock Stack - Tails / Waste Rock 080 OCEANA GOLD NZ LIMITED JOB NUMBER: ORIGINAL SCALE: A3 SIZE: DRAWING No. DATE TITLE BY PROJECT APPR. DESIGNED CHECKED DRAWN DESIGN APPR. APPROV. CHECKED REVISION DATE BY No. C COPYRIGHT written approval from in any way without prior and may not be copied OCEANA GOLD NZ LIMITED the property of This drawing remains REV. No. Preliminary Issue Tender Issue Construction Issue Signed: Signed: Signed: Date: Date: Date: PROJECT: AREA: DEVELOPMENT SITE Locality Plan and Index Northern Rock Stack Tails / Waste Rock 080 WAI-983-080-DWG-CI-0700 E 9018 as shown Northern Rock Stack WAI-983-080-DWG-CI-0717 WAI-983-080-DWG-CI-0770 WAI-983-080-DWG-CI-0772 WAI-983-080-DWG-CI-0730 Perimeter and Diversion Drains Sections Sheet 1 of 4 - Tails / Waste Rock 080 Sections - Northern Rock Stack - Tails / Waste Rock 080 Layout Plan - Leachate Drain - Tails / Waste Rock 080 Layout Plan - Subsoil Drains - Tails / Waste Rock 080 WAI-983-080-DWG-CI-0715 Layout Plan - Northern Rock Stack - Tails / Waste Rock 080 A JL 09-09-20 Preliminary Issue ET TM B JL 13-11-20 Preliminary Issue ET TM C MC 15-07-21 WNP Preliminary Issue ET TM 15-07-21 15-07-21 15-07-21 15-07-21 15-07-21 MC ET ET TM WAI-983-080-DWG-CI-0731 Perimeter and Diversion Drains Sections Sheet 2 of 4 - Tails / Waste Rock 080 WAI-983-080-DWG-CI-0732 Perimeter and Diversion Drains Sections Sheet 3 of 4 - Tails / Waste Rock 080 WAI-983-080-DWG-CI-0733 Perimeter and Diversion Drains Sections Sheet 4 of 4 - Tails / Waste Rock 080 WAI-983-080-DWG-CI-0780 WAI-983-080-DWG-CI-0782 Layout Plan - NRS Closure - Tails / Waste Rock 080 Sections - NRS Closure - Tails / Waste Rock 080 D JL 19-07-21 Added Closure Section DWGs ET TM WAI-983-080-DWG-CI-0781 Sections - NRS Closure - Tails / Waste Rock 080 E ET 29-09-21 Added Closure Plan WAI-983-080-DWG-CI-0761 Typical Section - Collection Pond - Tails / Waste Rock 080

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