
The Maritime Union's WA branch is in escalating disputes with CBH Group at Kwinana and with Fremantle Ports, where a protected action ballot closes on 8 September. CBH locked out its entire Kwinana workforce on 1 September in response to maintenance-related bans.
Industrial action at WA's main grain terminal during the pre-harvest maintenance window risks delaying winter crop exports, which could lift Australian wheat and barley export premiums. The effect depends on whether the dispute spreads to Fremantle.
After 283 past bullish logistics events, Wheat (SRW) moved a median -0.2% over 5 sessions (46% higher; middle half -1.4% to +1.3%), and -0.1% over 20.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.