Yeah sure. Whenever you see a mining project proposing to build...

Yeah sure. Whenever you see a mining project proposing to build their own utilities or reagents plant, that is typically a red flag indicating their profit margins are so slim they need to try and get reduce costs by producing their own power and/or reagents, but at the cost of massive up front capital as well as increased project risk. Even giants like LTR are using a third party for their huge renewable power generation.

In the case of a Chlor-alkali plant, you’re looking at $150-200m capex (rough numbers) for a 5 Mtpa clay plant at 20 kg/t acid consumption rate. You still have to use electricity and salt to generate the hydrochloric acid, it isn’t free to generate even if you have a plant. IRR on the plant would be something like 10-15%compared to buying reagents in, so terrible use of capital when you probably need to raise it with equity or do a high interest debt funding deal. Below typical 2021 cost for Chlor-alkali plant in India - add escalation for 2023 pricing and Australian location and your looking at a huge capex.