Ref. Blast Notification Letter.DOC

11thDecember 2025

«First_Name» «Surname»

«POSTAL_ADDRESS Street»

«POSTAL_ADDRESS Town»

Mt Arthur Coal Pty Limited Thomas Mitchell Drive Muswellbrook NSW 2333 Australia Private Mail Bag No. 8 Muswellbrook NSW 2333 Australia

Tel +61 2 6544 5800 Fax +61 2 6544 5801

bhpbilliton.com

Mt Arthur Coal Blast Schedule



Please be advised for the week commencing 22nd December 2025 blasts are scheduled for the following times:

Number of blasts

Day

Date

Road Closure (Y/N)

3

Wednesday

24 December

N

The firing window is between the hours of 8:00 am and 5:00 pm. Mt Arthur Coal will co-ordinate blast times with other nearby coal mines to minimise potential cumulative blasting impacts.

This blast schedule will also be posted to the BHP Website under the following headings 'Coal Assets - NSWEC - Mt Arthur Coal from the Coal Assets -Blast Information'. https://www.bhp.com/sustainability/environment/regulatory-information

Please note that actual blast schedule times may be subject to changes due to production constraints or changes in weather conditions. For more up-to-date information about Mt Arthur Coal's blast times, visit Muswellbrook Shire Council's online blasting portal: https://www.muswellbrook.nsw.gov.au/blast-notifications/

Should you have any queries or concerns, please don't hesitate to contact the Mt Arthur Coal 24-hour Community Response Line on 1800 882 044.

Per: WP

Wayne Parry

Superintendent Drill and Blast

Registered Office:

Mt Arthur Coal Pty Limited Level 14, 480 Queen Street Brisbane QLD 4000 Australia

ABN 83 000 181 902

Registered in Australia

A member of the BHP Billiton Group

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BHP Group Limited published this content on December 11, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on December 11, 2025 at 03:38 UTC.