1. Purpose
To consult with Members on 2025/26 WA Location Differentials (LDs).

2. Background
GTA publishes the LDs for the storage locations of members in QLD, NSW, VIC, SA and WA annually to enable participants using the GTA Contract No. 2 Grain and Oilseeds in Bulk – Basis Track to price grain at up-country sites.

• GTA LDs for QLD, NSW and VIC have been published for 2025/26 season via GTA Member Update 15 of 2025 on the 29 August 2025.
• GTA LDs for SA have been published for the 2025/26 season via GTA Member Update 20 of 2025 on the 1 October 2025.

The industry has agreed to use Bunge and CBH Group published freight rates for South Australia (SA) and Western Australia (WA) each year, subject to endorsement by the GTA Commerce Committee. The GTA Commerce Committee has received CBH information for the WA LDs for the 2025/26 season. Members have an opportunity for Member Submission on WA LDs. A comparison of 24/25 versus the proposed 25/26 GTA LDs can be accessed here.

Given the late stage of the season, the Committee agreed a short submission period is appropriate.

3. Review of Location Differentials & Amendments for WA
As per the Board approved LDs Standard Operating Procedure (SOP), LDs for sites in WA that have access to company owned seaport terminals (CBH and Bunge sites) are based off the relevant Estimated Marketer Freight Rates for their storage networks. The rates for 2025/26 have been provided to GTA and subsequently to the Commerce Committee for analysis and review.

For non-CBH sites, (where the sites main port is a CBH port) the agreed methodology (per SOP) “In WA where a site is not owned by CBH, the LD shall be calculated using the road distance to port of the particular site based on Google Maps based on the rate/t per km rate for adjacent CBH site/s adjusted for distance.”

GTA has consulted with site owners to confirm recommended LDs for the respective sites. Where a site exists in a town with a CBH site, all sites in that town will be allocated the CBH LD, in accordance with the SOP.

The current GTA Location Differentials can be found here.

4. Submissions – Due 27 October 2025
All industry feedback on the above issues must be received by Noon on Monday, 27 October 2025 and be forwarded to submissions@graintrade.org.au

All other submissions should be presented on the GTA Location Differential Site Nomination Form.

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