RE: 500 hectares11 Jan 2022 07:55
My view in summary, see below and follow for additional links.
Various optimisations and efficiencies by Ganfeng are likely to increase the initial production from 17.5ktpa closer to 25ktpa. Looking at the existing plans, the additional 500 hectares of land is sufficient land for factories, tailings and the like for an additional 25ktpa/50ktpa operation, perhaps simultaneously starting in the south of the pit in the JV area, if not in parallel then for 25ktpa plus 3 expansions. Meaning two 25ktpa expanding to 50ktpa are possible from Sonora = 100ktpa operation in time. Perhaps as soon as 2-3 years if constructed in parallel. Will depend on Lithium demand and Ganfeng's ambitions.
https://www.reddit.com/r/CadenceMinerals/comments/qtpwkw/bcn_rns_sonora_project_update_ganfeng_expansion/
https://www.reddit.com/r/CadenceMinerals/comments/qtpwkw/comment/hli1xa1/
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We know that LAC collaborated with Ganfeng Lithium to develop and test process flowsheet for their 2018 30ktpa + 30ktpa PFS and that according to the sedar Aug 23 2018 22:46:33 ET announcement Ganfeng and LAC have a Strategic Collaboration Agreement. Although the terms of the agreement expressly do not apply to the Thacker Pass project, it does seem quite likely that LAC has involvement in the Sonora project behind the scenes, according to the terms of the agreement.
With this in mind, it's interesting to note that the recent announcement by LAC that the increase from 30ktpa to 40ktpa is a result of optimisations & efficiencies: The increased target capacity reflects optimizations to the mine plan and leaching efficiencies, maintaining the same proposed 3,000 tonnes per day (“tpd”) sulfuric acid plant and water usage
We know that Ganfeng is reviewing a lithium plant production rate above the previously planned 17,500 tonnes per year.
For a similar mine footprint and water usage to the Sonora 17.5/35ktpa a similar optimisation & efficiencies as applied to LAC, and shared with Ganfeng through the SCA (assuming Ganfeng aren't actually still working directly behind the scenes on the Thacker Pass project), would result in Sonora production rates of 23/47ktpa - perhaps rounded up to 25/50ktpa.
Additionally as previously discussed in this thread the additional 500 hectares of land at the eastern end of the plant site location to allow for future plant expansions indicates they are considering expansions beyond this, perhaps simultaneously mining from the South pit which this additional land is likely adjacent to, to reduce mining costs and improve project economics.
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