OceanaGold Waihi

08/09/2026

Upcoming works at Tailings Storage Facility 1A

As we come into the summer construction season, we’re kicking off work on the crest of Tailings Storage Facility 1A (TSF1A).

This work will involve placing and compacting material along the top edge of the embankment to complete a ‘crest raise’; increasing the height of the facility by approximately 1.6 metres. This will provide additional tailings storage capacity to support ongoing mining operations.

As with previous stages, the work is weather dependent and is expected to continue through to about the end of May 2027.

HOURS OF OPERATION

Most construction activities will be undertaken between 6.00 am and 6.00 pm on weekdays, and between 6.00 am and midday on Saturdays.

Construction-related activities may also occur between midday and 6.00 pm on Saturdays, and between 6.00 am and 6.00 pm on Sundays, subject to compliance with the stricter noise limits that apply during those periods.

WE’RE TAKING STEPS TO MINIMISE EFFECTS

You may notice earthmoving machinery on the facility during this time.

We are taking steps to minimise noise, dust, and other effects, in accordance with our consent conditions and relevant New Zealand standards.

Throughout the project, we’ll carry out monitoring and collect representative samples to ensure we continue to meet the required standards and manage any potential effects.

See the full update here:https://www.waihigold.co.nz/uploads/documents/updates/2026/oceanagold-waihi-update-09-september-2026.pdf

04/09/2026

Looking great Waihi Central School!

03/09/2026

In the latest OceanaGold Update, it's full steam ahead at the Waihi North Project. We also cover acquiring Ausgold Limited in Western Australia, we put a spotlight on sponsorships with Bay Pathways, and include the details about about our upcoming Community Meeting.

See the full update here:https://www.waihigold.co.nz/uploads/documents/updates/2026/oceanagold-waihi-update-04-september-2026-2-page.pdf

02/09/2026

Native Planting Gets Underway Near the Pit Rim Walkway

“Watch this space!” That’s the message from Trish at Hako Tiaki Whenua Nursery, as a new native planting project gets underway near the Kenny Street entrance to the Pit Rim Walkway.

The joint initiative between OceanaGold and Hako Tiaki Whenua Nursery will see a mix of native species planted inside an existing fenced area near the walkway. The planting will not change the Pit Rim Walkway or affect public access.

Based at Tirohia, Hako Tiaki Whenua Nursery has been operating for five years and specialises in locally grown native plants for the Hauraki District, including wetland and restoration projects.

“It’s a real mix of evergreens that will come up among the slower-growing canopy trees and give them a bit of protection,” Trish says. “Eventually, it’ll be a big area of trees and native bush.”

Planned species include rimu, karaka, mataī, tōtara, kahikatea, kōwhai, karamu, tī kōuka, harakeke, wharariki, carex and toetoe.

01/09/2026

Spotlight on sponsorships: New programme helps young people thrive

Traditional education doesn’t work for everyone. Bay Pathways Director Cat Sole knows that better than most. For the past 15 years she’s been helping young people whose needs are not always met in mainstream school settings, find learning pathways where they can thrive.

She says every young person’s circumstances are different and many face factors outside the classroom that can affect their learning including financial hardship, access to transport, family circumstances, and diverse learning needs.

“We work closely with Waihi College to provide those students with additional support, including picking them up from home and bringing them to and from the programme, engaging mentors, and creating an environment where they feel safe and supported to focus on their studies,” she says.

More recently, that support includes a wellbeing programme funded by OceanaGold.

The year-long programme complements the existing work of the organisation, by helping the students better understand themselves and how they can make small changes in their lives that will have a big impact on their future. It includes weekly group sessions and one-on-one support with a qualified practitioner to help develop practical strategies for managing challenges and improving wellbeing.
Just a few weeks into the programme the response has been overwhelmingly positive.

“I knew there needed to be a therapeutic component to help young people better understand themselves, their experiences, and the factors that can affect their learning. This programme is providing that,” Cat says.

For her, the motivation remains simple.

“I just want them all to have some wins. Before coming here, a lot of the students had very low attendance rates, but they’re now sitting closer to 100%. Our most vulnerable and our most under-resourced need someone in their corner. That’s what keeps me going.”

27/08/2026

We've received a few questions lately about cyanide use in our Waihi operations. It's understandable people are seeking accurate information about this, so we thought we'd share a few fast facts here.

1. OceanaGold has maintained a Cyanide Management Plan for many years. The plan sets out the key safety measures and emergency procedures we have in place including: controlled storage areas, fixed gas monitoring sensors and alarms, automated processes to minimise human interactions, and the permanent onsite storage of neutralising agents to detoxify any material in the unlikely event of a spill.

2. Globally, OceanaGold conforms to the World Gold Council’s Responsible Gold Mining Principles (RGMPs), established in 2019. These principles set clear expectations for responsible mining practices across ten key areas, including responsible use and management of cyanide according to the International Cyanide Management Code.

3. Our policies, systems, and controls are independently assured each year to confirm our ongoing compliance with the RGMPs. In addition, independent third-party reviews are undertaken on a three-year cycle to benchmark our cyanide management practices against the requirements of the International Cyanide Management Code.

For more information on cyanide use in the processing of gold and silver at Waihi, and around the world, check out this update we put out last year.

www.waihigold.co.nz/uploads/documents/updates/2025/oceanagold-waihi-update-2-october-2025-right.pdf?_cchid=8ffc692f96740f0e69db615f6b2b28ef

25/08/2026

🚗 Did you know? The JumpStart Driver Training Programme isn’t just for students.

It’s also available free of charge to members of the wider Waihi community, helping more people take the next step toward gaining their restricted licence.

For recent graduate, Nikita Anderson, getting her licence gave her the independence she needed after returning to work following maternity leave. She advises anyone sitting on the fence to take the leap and ‘just do it’.
“Getting my restricted is freedom, it’s made my life so much easier,” she says.

If you're a member of the local community looking to gain your restricted drivers licence, contact Rachel Gillingham at Waihi Police by emailing [email protected] or drop by Waihi Police Station Mon-Fri, 9am to 3pm.

18/08/2026

OceanaGold adds another string to its bow

OceanaGold has entered into an agreement to acquire Ausgold Limited, an Australian-listed gold company, which owns the Katanning Gold Project in Western Australia.

It’s another milestone in our story. From our beginnings in Otago at the Macraes Operation, we have grown into an international gold producer with operations around the world and a listing on the New York Stock Exchange.

The Katanning Gold Project is located approximately 275km southeast of Perth in Western Australia. It is a conventional open-pit development project with the potential to produce more than 100,000 ounces of gold per year over an initial 10-year mine life, with first gold expected in 2029.

Watch the video to learn more, or visit https://oceanagold.com/investors/ausgold-acquisition

https://www.youtube.com/watch?v=KA5OMdpgdVw

President & CEO, Gerard Bond, shares OceanaGold's rationale for the...

14/08/2026

More Trucks on the Road as Waihi North Project Ramps Up

You may have noticed more trucks on local highways recently.

This work includes getting the Willows Road site ready and putting key infrastructure in place to support the project. We expect this extra truck activity to continue for around 18 months while this stage of work is underway.

We’re working hard to manage construction traffic responsibly and safely by;
• limiting truck activity to between 6.30am and 5.30pm, Monday to Saturday
• avoiding residential streets where we can
• using measures such as covered loads, wheel washes, and street sweeping.

Contributing to repairs

You may see contractors in the area completing repair works. We have agreed with the NZ Transport Agency Waka Kotahi to contribute to repair costs for identified potholes along the section of SH25 being used for these works. This means repair costs covered under the agreement will be met by OceanaGold, rather than through public road maintenance funding.

While we are just one of many users of SH25, this approach is intended to help maintain road condition and support safer journeys for all road users.

The work also involves a range of local and regional transport providers and drivers, helping support local businesses and suppliers during this stage of the project.

Thanks for your patience while this work is underway

While state highways are designed to accommodate high traffic volumes, and are open to all road legal vehicles, we recognise the challenges this level of activity can create for those living in the area and will continue to manage our activities responsibly within the approved framework.

We’ll keep monitoring truck movements, road conditions, and community feedback as the work continues.

For the full details visithttps://www.waihigold.co.nz/uploads/documents/mining-matters/2026/mining-matters-80-august-2026.pdf

Got a question or spotted an issue?

We’ll have more updates to share as works progress. If you have questions, concerns, or notice an issue, please contact us on our 24/7 Community Engagement Line: 0800 924 444 or email: [email protected]

12/08/2026

Volunteer Driver Navigators: The Heart of JumpStart

For the past five years, local volunteers have been at the heart of the JumpStart Driver Training programme, giving their time to help others build the skills and confidence to drive.

After being Police-vetted and trained, our Volunteer Driver Navigators work alongside learners, supporting them every step of the way as they move towards gaining their licence.

For Lynette Steele, one of our longest-serving Navigators, the impact is about more than just a licence:

“I think that piece of paper lifts young people’s self-esteem tremendously.”

A heartfelt thank you to all our past and present Navigators for the time, patience, and encouragement you have given to people across Waihi. Your support makes a real difference.