Sustainable bonds issued under Western Australian Treasury Corporation's (WATC) Sustainability Bond Framework form part of our broader Benchmark Bond program financing Western Australian Government initiatives that contribute to achieving continuous improvement in ESG outcomes for Western Australia.
Sustainability Bond Framework
Enables investors to contribute capital to forward looking transformational environmental and social projects.
Aligns with the International Capital Markets Association's Green Bond Principles, Social Bond Principles and Sustainability Bond Guidelines.
Comprehensive Second Party Opinion provided by Sustainalytics on our Framework, proceeds allocation and impact reporting.
Latest Publications

This latest release provides an update on the allocation of green bond proceeds raised to the end of March 2026 and the outcomes being delivered across Western Australia. Released alongside this publication are a one-page snapshot, a supplementary data pack and pre-issuance and post-issuance second party opinions.
Image - HeliSpirit Scenic Tours, Kununurra. Image courtesy of Tourism Western Australia.
Sustainable Finance Key Documents
2026
| Item | Document Link |
| Sustainable Bond Program | Allocation and Impact Report Allocation and Impact Snapshot Allocation and Impact Data Pack Pre-issuance Second Party Opinion Post-issuance Second Party Opinion |
| Market Update |
2025
| Item | Document Link |
| Market Update | Funding Sustainable Infrastructure |
| Termsheet | |
| Investor Information | |
| Framework | Sustainability Bond Framework – Updated |
| Second Party Opinion | Sustainalytics Second Party Opinion – Updated |
2024
| Item | Document Link |
| Annual Report | Sustainability Bond Framework Annual Report |
| Assurance Report | Sustainalytics Assurance Report |
| Decarbonising Western Australia | Decarbonising Western Australia and Our Trading Partners |
2023
| Item | Document Link |
| Annual Report | Sustainability Bond Framework Annual Report |
| Assurance Report | Sustainalytics Assurance Report |
| Second Party Opinion | Sustainalytics Second Party Opinion |
| Investor Information | Investor Update – Green Bond |
| Termsheet | Green Bond 2033 Investor Term Sheet |
External Listing
Projects within WATC’s green bonds have met the screening criteria for inclusion on the Climate Bonds Initiative Green Bond Database and the ICMA Sustainable Bond Market Database.
Banner images:
Top - Whales at Dolphin Cove, Esperance. Image courtesy of Tourism Western Australia.
Below - The Basin, Rottnest Island. Image courtesy of Tourism Western Australia.
For more information
If you have a query about our Sustainable Finance Program, contact our team today.
