Blackstone Minerals Ltd (ASX: BSX / OTCQX: BLSTF / FRA: B9S) is focused on building an integrated upstream (Ta Khoa Nickel Project) and downstream (Ta Khoa Refinery Project) battery metals processing business in Vietnam that produces Nickel Cobalt Manganese Precursor products for Asia’s growing Lithium-ion battery industry.
The Company owns a 90% interest in the Ta Khoa Nickel Project. The project is located 160km west of Hanoi in the Son La Province of Vietnam and includes an existing modern nickel mine built to Australian standards, which is currently being used to process nickel ore delivered by the underground bulk sample program. The nickel mine successfully operated as a mechanised underground nickel mine from 2013 to 2016.
Blackstone’s Ta Khoa Nickel Project and Ta Khoa Refinery Project are the two major cogs in Blackstone’s vertically integrated development strategy. The Company’s development strategy is underpinned by Blackstone’s ability to secure nickel concentrate and Ta Khoa is emerging as a nickel sulfide district of enviable scale with several exploration targets yet to be tested.
In December 2022, Blackstone’s piloting programme at ALS Metallurgy (“ALS”) in Western Australia marked a critical milestone to validate and underpin the Company’s ongoing Definitive Feasibility Study (“DFS”) for the Ta Khoa Refinery project. With the support of ALS, and engineering partner Wood, a 12-month programme of work
was undertaken that developed a scaled version of Blackstone’s Ta Khoa Refinery,
processing nickel concentrate to battery grade nickel and cobalt sulphates, and successful processing of third-party MHP and cobalt supply.
Key piloting highlights were:
- Operations: >15,000 labour hours without injury;
- Feed: >7 tonnes (comprised of Ban Phuc and third-party tonnes from Trafigura);
- POX piloting: >700 hours of operation;
- SX piloting: >1,100 hours of operation;
- MHP: >2.2 tonnes produced and leached;
- Product quality:
1. Nickel sulphate: achieved battery grade specification
2. Cobalt sulphate: achieved battery grade specification
3. Copper cathode: achieved >99.99% specification;