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Brand's not an issue but last one I bought was Holt's .
Any brand that says something like 'Use no oil or petrol. Thin with water only' on the instructions is fine.
You can be sure it will be...

VIP ---- Use only water based valve grinding paste. Don't use oil based abrasive on your waterstones.

I lap my Chinese 12K & most other stones on a big slab of tempered glass using water based automotive valve grinding paste - coarse thru to fine grit. The paste breaks down into a slurry quickly and...