Supporting Technical Assessments

| Project Description | Waihi North Project Air Discharge Assessment - Waihi Surface Facilities | 4396626-1331619777-99 | 16/06/2022 | 10 Figure 2-2 Plan of Final Gladstone Pit and associated Infrastructure (image supplied by OGNZL) 2.2.2 Blasting During mining, blasting will occur daily during the dayshift, between 7am and 6pm, Monday to Saturday. It is expected that blasting will use the same practices and controls as employed by OGNZL for the Martha Pit. It is expected that blasting will be undertaken using electronic detonators, emulsion bulk explosive and small charge weights. Maximum explosive quantities per blast hole are expected to vary depending on operational requirements. Standard practices will be followed with respect to controlling potential effects, including fly rock and will be included in a Vibration Management Plan. 2.2.3 Mobile mining equipment OGNZL estimates of mobile mining equipment required over the life of the GOP as summarised in Table 2-1 Table 2-1. GOP mobile equipment estimates Equipment Type Average units required Peak Annual unit requirements Excavators (100 -190t) 1 2 Excavators (50t) 1 2 Production Drill 4 8 Front End Loaders 1 1 Trucks (75t) 5 7 40t ADT 3 6

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