A few years back I had a little something there, but I sold it for a loss because it looked like a value trap. Canon didn't make much money on photo equipment, the lithographic equipment was a step behind ASML and could only compete with Nikon. Most of their income comes from printers and that may be a declining business over time (I see it mentioned in almost every HPQ analysis).

What I understand so far is that their machine is based on a completely different principle than the EUV from ASMl and the process is more time consuming, so the efficiency/costs are not fully ideal and especially it is not yet proven in series production. If it turns out that it really can do 4nm technology in sufficient quality and price, it may change the balance of power in ASML's monopoly position, but I think we are still far from that.

Anyway, I think that even if the lithography does take off, it won't be an advantage for them over ASML in terms of being able to supply China with the technology to make advanced semiconductors. They will get the same restrictions from the US as anyone else.