Yeah, you are correct. Adamo Chemical provides a building that can process those sulfuric-based recipes. Without that, I think you'll have to stick to the hydrofluoric acid ones. The hydrofluoric acid-based recipe I think is cheaper, depending on how you value stone. The sulfuric acid one only provides the advantage that no additional HF is required/eaten since the same amount of HF is recoverable when you make the oxide at the end of the production chain. I would consider just removing the sulfuric-based recipe and except that I wanted it to be available for anyone else who provides a chem plant with three inputs in a mod other than Adamo Chemical.
