That last article was March 2021 this one July 2021 mentions the IRFB question but is a little scant on detail.https://www.mining.com/redox-flow-battery-market-expected-to-become-multi-billion-by-2031-report/
ASX Market Open: ASX200 to open flattish after Wall Street weakens on hot US inflation data | October 11, 2024
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