Arrow Minerals (ASX:AMD) has added another layer to its Pilbara iron ore story, yesterday announcing they have lodged a first-in-time application for a new exploration tenement immediately beside Rio Tinto’s Robe JV operations.
The application increases Arrow’s prospective Yarraloola landholding by ~30% to 415km².
The market is already leaning into the story, with Arrow shares are up over 50% for the week as investors digest the company’s growing iron ore footprint.
Right next door to Rio
The new ground directly adjoins Arrow’s existing Yarraloola tenements and Rio Tinto’s Robe JV mining lease.
At its closest point, it sits only around 2km from the large-scale Mesa A open-pit operation within the Robe Valley hub.
That mine has been operating since the 1970s and currently produces around 20Mtpa to 23Mtpa.
For Arrow, that puts the new application in a very well-established iron ore neighbourhood.
Figure 1: Mineral Tenure associated with the new tenement application; Arrow’s existing Yarraloola tenements; locations of deposits, mines and infrastructure of the Robe River Iron Associates Joint Venture (RRJV), approximate limits of CID pisolitic ironstones and targets identified by past explorer CZR Resources (ASX:CZR); and Mineral Tenure of CZR’s Robe Mesa Iron Ore Project acquired from CZR by the RRJV during 2025.
Chasing Robe-style mineralisation
Arrow is targeting the potential for channel iron deposit-style mineralisation similar to that seen across the broader Robe Valley.
These deposits can offer attractive geometry and relatively simple mining characteristics where the geology works.
The company also brings direct operating experience to the opportunity, with management highlighting past experience mining this style of deposit.
Subject to tenure being granted, Arrow intends to actively explore the new ground.
More than one iron ore angle
Yarraloola is also only one part of the portfolio.
Arrow is advancing the Niagara Bauxite Project in Guinea, where SRK has estimated a maiden Mineral Resource of 185Mt at 42.3% Al2O3 and 2.7% SiO2.
The company is also awaiting the outcome of a government review into the Simandou North Iron Ore Project, where it has already completed drilling, environmental work, metallurgical testwork and signed an MOU with Baosteel covering potential mine-gate iron ore sales.
What comes next
The immediate catalyst at Yarraloola is tenure.
If the application is granted, Arrow plans to move into active exploration across the new ground and test whether Robe-style iron mineralisation continues onto its position.
The shares have already had a big week, now Arrow has to show whether the geology can keep up with the market’s enthusiasm.
